payment-ready until 2026-08-20
imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed
RPC API for Ethereum mainnet and Sepolia, with 25 pay-per-call endpoints (blocks, balances, transactions, receipts, event logs, ENS, contracts, NFTs) payable in USDC on Base via x402, with no API key.
Pay from $0.001 to $0.005 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
first settlement 2026-02-19 · $247.42 all-time · settled via coinbase
ASSESSMENT
updated 4h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 571ms
- avg response
- 208ms
- total checks
- 2,144
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.001 to $0.005 (p14 in Blockchain)
- price (min)
- $0.001
- price (max)
- $0.005
- category percentile (min)
- p14 in Blockchain
- category percentile (max)
- p28 in Blockchain
- endpoints / prices
- 10 / 4
- model
- tiered
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
traction $148.434 30d · 1,479 buyers
- volume 30d
- $148.434
- buyers 30d
- 1,479
- settlements 30d
- 45,330
- first settlement
- 2026-02-19
- last settlement
- 2026-08-13
- top buyer share
- 64% of 30d volume
- trend 7d vs 30d
- 0.45x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $247.42
- settlements all-time
- 70,313
- median settlement 30d
- $0.001
- max settlement 30d
- $0.01
- settled via
- coinbase ($148.43, 45,330 tx)
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedOneSource provides EVM blockchain RPC services for AI agents, including block information, contract interactions, and token data.
- category
- blockchain-rpc
- in
- path params and body
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /api/chain/block-number | $0.001 | Base | USDC | header | |
| POST | /api/chain/call | $0.005 | Base | USDC | header | |
| GET | /api/chain/code/:address | $0.003 | Base | USDC | header | |
| GET | /api/chain/contract/:address | $0.005 | Base | USDC | header | |
| GET | /api/chain/ens/:input | $0.005 | Base | USDC | header | |
| GET | /api/chain/erc20-transfers | $0.005 | Base | USDC | header | |
| POST | /api/chain/estimate-gas | $0.004 | Base | USDC | header | |
| GET | /api/chain/network-info | $0.001 | Base | USDC | header | |
| GET | /api/chain/nonce/:address | $0.003 | Base | USDC | header | |
| GET | /api/chain/receipt/:hash | $0.005 | Base | USDC | header |
10 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /api/chain/block-number returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i 'https://api.onesource.io/api/chain/block-number'
// 402 response (captured by monitor) · 10 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "1000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/block-number",
"mimeType": "application/json",
"description": "Latest Ethereum block height - current chain tip via eth_blockNumber"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"network": "ethereum"
},
"type": "http",
"method": "GET",
"queryParams": {
"network": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"network": "ethereum",
"block_number": "0x133da1e"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"properties": {
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "3000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/code/:address",
"mimeType": "application/json",
"description": "Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"network": "ethereum"
},
"type": "http",
"method": "GET",
"queryParams": {
"address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"network": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"code": "0x6080604052600436106101...",
"address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"is_contract": true,
"bytecode_size": 10234
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
},
"routeTemplate": "/api/chain/code/:address"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/contract/:address",
"mimeType": "application/json",
"description": "Contract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"network": "ethereum"
},
"type": "http",
"method": "GET",
"queryParams": {
"address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"network": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"name": "Tether USD",
"symbol": "USDT",
"address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"decimals": 6,
"interfaces": [
"ERC20"
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
},
"routeTemplate": "/api/chain/contract/:address"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/ens/:input",
"mimeType": "application/json",
"description": "ENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"input": "vitalik.eth",
"network": "ethereum"
},
"type": "http",
"method": "GET",
"queryParams": {
"input": "vitalik.eth",
"network": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"mode": "forward",
"input": "vitalik.eth",
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"oneOf": [
{
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
{
"type": "string",
"pattern": ".+\\.eth$"
}
]
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"oneOf": [
{
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
{
"type": "string",
"pattern": ".+\\.eth$"
}
]
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
},
"routeTemplate": "/api/chain/ens/:input"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/erc20-transfers",
"mimeType": "application/json",
"description": "ERC20 Transfer logs via eth_getLogs - decoded sender, recipient, and amount for a token or wallet"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"token": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"wallet": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"network": "ethereum"
},
"type": "http",
"method": "GET",
"queryParams": {
"token": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"wallet": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"network": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"count": 1,
"transfers": [
{
"to": "0x6b175474e89094c44da98b954eedeac495271d0f",
"from": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"token": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"value": "1000000",
"tx_hash": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"block_number": "0x133da1e"
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"properties": {
"token": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"wallet": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
},
"to_block": {
"oneOf": [
{
"type": "integer",
"minimum": 0
},
{
"enum": [
"latest",
"pending",
"earliest",
"safe",
"finalized"
],
"type": "string"
},
{
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
}
]
},
"from_block": {
"oneOf": [
{
"type": "integer",
"minimum": 0
},
{
"enum": [
"latest",
"pending",
"earliest",
"safe",
"finalized"
],
"type": "string"
},
{
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
}
]
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"token": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"wallet": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
},
"to_block": {
"oneOf": [
{
"type": "integer",
"minimum": 0
},
{
"enum": [
"latest",
"pending",
"earliest",
"safe",
"finalized"
],
"type": "string"
},
{
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
}
]
},
"from_block": {
"oneOf": [
{
"type": "integer",
"minimum": 0
},
{
"enum": [
"latest",
"pending",
"earliest",
"safe",
"finalized"
],
"type": "string"
},
{
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
}
]
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "1000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/network-info",
"mimeType": "application/json",
"description": "Ethereum network info - chain ID, block height, and gas price in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice)"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"network": "ethereum"
},
"type": "http",
"method": "GET",
"queryParams": {
"network": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"network": "ethereum",
"chain_id": "0x1",
"gas_price": "0x4a817c800",
"block_number": "0x133da1e"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"properties": {
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "3000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/nonce/:address",
"mimeType": "application/json",
"description": "Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"network": "ethereum"
},
"type": "http",
"method": "GET",
"queryParams": {
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"network": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"block": "pending",
"nonce": "0x4d2",
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"required": [
"address"
],
"properties": {
"block": {
"oneOf": [
{
"type": "integer",
"minimum": 0
},
{
"enum": [
"latest",
"pending",
"earliest",
"safe",
"finalized"
],
"type": "string"
},
{
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
}
]
},
"address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"block": {
"oneOf": [
{
"type": "integer",
"minimum": 0
},
{
"enum": [
"latest",
"pending",
"earliest",
"safe",
"finalized"
],
"type": "string"
},
{
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
}
]
},
"address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
},
"routeTemplate": "/api/chain/nonce/:address"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/receipt/:hash",
"mimeType": "application/json",
"description": "Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"hash": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"network": "ethereum"
},
"type": "http",
"method": "GET",
"queryParams": {
"hash": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"network": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"logs": [],
"status": "0x1",
"gas_used": "0x5208",
"block_number": "0x133da1e",
"transaction_hash": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"effective_gas_price": "0x3b9aca00"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"required": [
"hash"
],
"properties": {
"hash": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{64}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"hash"
],
"properties": {
"hash": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{64}$"
},
"network": {
"enum": [
"ethereum",
"sepolia"
],
"type": "string",
"default": "ethereum"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
},
"routeTemplate": "/api/chain/receipt/:hash"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/call",
"mimeType": "application/json",
"description": "Simulate a read-only Ethereum contract call via eth_call - no transaction sent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"to": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"data": "0x0"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"result": "0x000000000000000000000000000000000000000000000000000000000000002a"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"to",
"data"
],
"properties": {
"to": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"data": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
},
"from": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"value": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"credentialTypes": [
"authorization"
]
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "4000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b"
},
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"amount": "4000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://api.onesource.io/api/chain/estimate-gas",
"mimeType": "application/json",
"description": "Estimate the gas a transaction will consume via eth_estimateGas before signing it"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"to": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"data": "0x0"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"gas_estimate": "0x5208"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"to": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"data": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
},
"from": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"value": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"description": "Response payload"
},
"meta": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"cost_usdc": {
"type": "string"
}
}
},
"error": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 24h selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/onesource/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
UPTIME
24h UPTIME 100%
RESPONSE TIME
AVG RESP 210ms
PRICE (captured 402, USD)
Median across 10 endpoints. Use the selector to isolate one.
SUB-SCORES (uptime + x402 compliance)
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
PILLARS OVER TIME (measured)
price percentile in Blockchain
site signals present (of 6)
Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-07-20 · last up 2026-08-13
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● SLOW 532ms
● OK 174ms
● OK 303ms
● SLOW 450ms
● SLOW 618ms
● SLOW 633ms
● OK 180ms
● SLOW 680ms
● SLOW 441ms
● SLOW 438ms
● SLOW 452ms
● SLOW 775ms
● SLOW 550ms
● SLOW 318ms
● SLOW 571ms
● SLOW 493ms
● SLOW 609ms
● SLOW 389ms
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/onesource?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/onesource.svg" alt="OneSource listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/onesource?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/onesource?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/onesource.svg?data=uptime" alt="OneSource uptime on x402-list" height="28"> </a>