payment-ready until 2026-10-06
Prepaid credits and pay-per-call inference for MiniMax models over x402. Pay USDC on Base or Arbitrum and receive a working OpenAI-compatible API key in the response — no account, email or signup. Serves MiniMax-M2.7 and M2.7-highspeed for general chat, agent loops and coding; MiniMax-M3 for long-context reasoning with a 1,048,576-token window; speech-2.8-hd and speech-2.8-turbo for audio; MiniMax-H3 for video. Text, audio and video all draw on the same balance. Both x402 v1 and v2 are accepted. Tiers from $0.10, or pay per call from $0.01.
Pay from $0.01 to $20.00 in USDC on Arbitrum One / Base, settled onchain via the x402 protocol, no signup, no API key needed.
listed 2026-09-14 · no on-chain settlement recorded yet
VERDICT
ranking generation 3solid 86/100 #38 of 162 in AI by measured score
What the score read on this service: status online, 100% uptime 30d, 441ms response p95, x402 compliance 14 of 14, $0.01 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
It is a score inside AI, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 162 listings, this one among them. That set is wider than the 162 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
ALTERNATIVES IN AI
Other AI services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).
| SERVICE | BAND | SCORE | UPTIME 30D | VOL 30D |
|---|---|---|---|---|
| Otto AI | strong | 95 | 100% | $56.13 |
| NetIntel | strong | 94 | 100% | $16.76 |
| x402engine | strong | 93 | 100% | $28.00 |
| GlianaAI | solid | 93 | 100% | $68.10 |
| Agent402.tools | solid | 92 | 99.7% | $138.77 |
ASSESSMENT
updated 6h agoThe parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.
reliability 100%
- uptime · latest daily rollup
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 441ms
- avg response
- 416ms
- total checks
- 1,272
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 $0.01 to $20.00 (p49 in AI)
- price (min)
- $0.01
- price (max)
- $20.00
- category percentile (min)
- p49 in AI
- category percentile (max)
- p96 in AI
- endpoints / prices
- 5 / 5
- 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 $0.00 30d · 0 buyers
- volume 30d
- $0.00
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- --- (start of our harvest window)
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
- settled via
- -
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is part of the ranking score: a higher share lowers the traction part of the score, by up to half when one address holds all 30d volume.
CHANGES
1 in 30dPayout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.
changes schema changed 8d ago (1 in 30d)
schema changed · 8d ago
endpoint added GET /api/x402/chat/completions
endpoint added GET /api/x402/credits/0.10
schema added GET /api/x402/chat/completions exact eip155:42161 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 USD Coin 2 120 {"name":"USD Coin","version":"2"}
schema added GET /api/x402/chat/completions exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 120 {"name":"USD Coin","version":"2"}
schema added GET /api/x402/credits/0.10 exact eip155:42161 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 USD Coin 2 120 {"name":"USD Coin","version":"2"}
schema added GET /api/x402/credits/0.10 exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 120 {"name":"USD Coin","version":"2"}
WHAT IT DOES
ai-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /api/x402/chat/completions | $0.01 | Arbitrum One/Base | USDC | header | |
| GET | /api/x402/credits/0.10 | $0.10 | Arbitrum One/Base | USDC | header | |
| GET | /api/x402/credits/1 | $1.00 | Arbitrum One/Base | USDC | header | |
| GET | /api/x402/credits/20 | $20.00 | Arbitrum One/Base | USDC | header | |
| GET | /api/x402/credits/5 | $5.00 | Arbitrum One/Base | USDC | header |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /api/x402/chat/completions returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://yiduochan.com/api/x402/chat/completions'
// 402 response (captured by monitor) · 5 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "20000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "20000000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://yiduochan.com/api/x402/credits/20",
"tags": [
"ai",
"llm",
"inference",
"api-credits",
"openai-compatible",
"text-to-speech",
"image-generation",
"video-generation"
],
"iconUrl": "https://yiduochan.com/logo.png",
"mimeType": "application/json",
"description": "Buy $20 of prepaid credits for the YiduoChan inference gateway and receive a working API key in the response. The key works with any OpenAI-compatible client against https://yiduochan.com/v1 and covers chat, reasoning, text-to-speech, image and video models. Credits are spent per token at published rates; no account, email or signup is required.",
"serviceName": "YiduoChan API Credits"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"wallet": "0x0000000000000000000000000000000000000000",
"api_key": "sk-...",
"base_url": "https://yiduochan.com/v1",
"credited": true,
"amount_usd": "20",
"expires_at": 1788000000,
"models_url": "https://yiduochan.com/v1/models",
"balance_usd": "20",
"transaction_hash": "0x..."
}
}
},
"schema": {
"type": "object",
"$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": {},
"description": "No request body. Payment is carried in the PAYMENT-SIGNATURE header.",
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"api_key",
"base_url",
"amount_usd",
"credited"
],
"properties": {
"wallet": {
"type": "string",
"description": "Buyer address the credits belong to"
},
"api_key": {
"type": "string",
"description": "Bearer token for the OpenAI-compatible API"
},
"base_url": {
"type": "string",
"description": "OpenAI-compatible base URL"
},
"credited": {
"type": "boolean",
"description": "True once the transfer settled and the balance was added"
},
"amount_usd": {
"type": "string",
"description": "Credits purchased, in USD"
},
"expires_at": {
"type": "integer",
"description": "Unix time the API key stops working"
},
"models_url": {
"type": "string",
"description": "Model catalogue endpoint"
},
"balance_usd": {
"type": "string",
"description": "Account balance after this purchase"
},
"transaction_hash": {
"type": "string",
"description": "Settlement transaction"
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://yiduochan.com/api/x402/credits/1",
"tags": [
"ai",
"llm",
"inference",
"api-credits",
"openai-compatible",
"text-to-speech",
"image-generation",
"video-generation"
],
"iconUrl": "https://yiduochan.com/logo.png",
"mimeType": "application/json",
"description": "Buy $1 of prepaid credits for the YiduoChan inference gateway and receive a working API key in the response. The key works with any OpenAI-compatible client against https://yiduochan.com/v1 and covers chat, reasoning, text-to-speech, image and video models. Credits are spent per token at published rates; no account, email or signup is required.",
"serviceName": "YiduoChan API Credits"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"wallet": "0x0000000000000000000000000000000000000000",
"api_key": "sk-...",
"base_url": "https://yiduochan.com/v1",
"credited": true,
"amount_usd": "1",
"expires_at": 1788000000,
"models_url": "https://yiduochan.com/v1/models",
"balance_usd": "1",
"transaction_hash": "0x..."
}
}
},
"schema": {
"type": "object",
"$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": {},
"description": "No request body. Payment is carried in the PAYMENT-SIGNATURE header.",
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"api_key",
"base_url",
"amount_usd",
"credited"
],
"properties": {
"wallet": {
"type": "string",
"description": "Buyer address the credits belong to"
},
"api_key": {
"type": "string",
"description": "Bearer token for the OpenAI-compatible API"
},
"base_url": {
"type": "string",
"description": "OpenAI-compatible base URL"
},
"credited": {
"type": "boolean",
"description": "True once the transfer settled and the balance was added"
},
"amount_usd": {
"type": "string",
"description": "Credits purchased, in USD"
},
"expires_at": {
"type": "integer",
"description": "Unix time the API key stops working"
},
"models_url": {
"type": "string",
"description": "Model catalogue endpoint"
},
"balance_usd": {
"type": "string",
"description": "Account balance after this purchase"
},
"transaction_hash": {
"type": "string",
"description": "Settlement transaction"
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "100000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://yiduochan.com/api/x402/credits/0.10",
"tags": [
"ai",
"llm",
"inference",
"api-credits",
"openai-compatible",
"text-to-speech",
"image-generation",
"video-generation"
],
"iconUrl": "https://yiduochan.com/logo.png",
"mimeType": "application/json",
"description": "Buy $0.10 of prepaid credits for the YiduoChan inference gateway and receive a working API key in the response. The key works with any OpenAI-compatible client against https://yiduochan.com/v1 and covers chat, reasoning, text-to-speech, image and video models. Credits are spent per token at published rates; no account, email or signup is required.",
"serviceName": "YiduoChan API Credits"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"wallet": "0x0000000000000000000000000000000000000000",
"api_key": "sk-...",
"base_url": "https://yiduochan.com/v1",
"credited": true,
"amount_usd": "0.10",
"expires_at": 1788000000,
"models_url": "https://yiduochan.com/v1/models",
"balance_usd": "0.10",
"transaction_hash": "0x..."
}
}
},
"schema": {
"type": "object",
"$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": {},
"description": "No request body. Payment is carried in the PAYMENT-SIGNATURE header.",
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"api_key",
"base_url",
"amount_usd",
"credited"
],
"properties": {
"wallet": {
"type": "string",
"description": "Buyer address the credits belong to"
},
"api_key": {
"type": "string",
"description": "Bearer token for the OpenAI-compatible API"
},
"base_url": {
"type": "string",
"description": "OpenAI-compatible base URL"
},
"credited": {
"type": "boolean",
"description": "True once the transfer settled and the balance was added"
},
"amount_usd": {
"type": "string",
"description": "Credits purchased, in USD"
},
"expires_at": {
"type": "integer",
"description": "Unix time the API key stops working"
},
"models_url": {
"type": "string",
"description": "Model catalogue endpoint"
},
"balance_usd": {
"type": "string",
"description": "Account balance after this purchase"
},
"transaction_hash": {
"type": "string",
"description": "Settlement transaction"
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://yiduochan.com/api/x402/chat/completions",
"tags": [
"ai",
"llm",
"inference",
"chat",
"chat-completions",
"openai-compatible",
"language-model",
"text-generation",
"minimax",
"pay-per-call"
],
"iconUrl": "https://yiduochan.com/logo.png",
"mimeType": "application/json",
"description": "OpenAI-compatible LLM inference, paid per call. POST a standard chat completion body with an x402 payment and the response is the completion itself; the API key and remaining balance come back in headers, so the next call can skip payment. Serves MiniMax language models: MiniMax-M3 for long-context reasoning with a 1,048,576-token window, and MiniMax-M2.7 for general chat, agent loops and coding. Text to speech and video generation run on the same balance. Whatever a call does not spend stays on the paying wallet. No account, email or signup.",
"serviceName": "YiduoChan MiniMax Inference"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"model": "MiniMax-M2.7",
"messages": [
{
"role": "user",
"content": "Summarise this in one sentence: ..."
}
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "chatcmpl-...",
"model": "MiniMax-M2.7",
"usage": {
"total_tokens": 59,
"prompt_tokens": 42,
"completion_tokens": 17
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "..."
},
"finish_reason": "stop"
}
]
}
}
},
"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": [
"model",
"messages"
],
"properties": {
"model": {
"type": "string",
"description": "A model id from /v1/models, for example MiniMax-M2.7 or MiniMax-M3"
},
"messages": {
"type": "array",
"items": {
"type": "object",
"required": [
"role",
"content"
],
"properties": {
"role": {
"enum": [
"system",
"user",
"assistant"
],
"type": "string"
},
"content": {
"type": "string"
}
}
},
"description": "OpenAI chat messages"
},
"max_tokens": {
"type": "integer"
},
"temperature": {
"type": "number"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"description": "An OpenAI chat completion response"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "5000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x67164557fb0dd6ce00b95bac0931840ca1f6dbe5",
"amount": "5000000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://yiduochan.com/api/x402/credits/5",
"tags": [
"ai",
"llm",
"inference",
"api-credits",
"openai-compatible",
"text-to-speech",
"image-generation",
"video-generation"
],
"iconUrl": "https://yiduochan.com/logo.png",
"mimeType": "application/json",
"description": "Buy $5 of prepaid credits for the YiduoChan inference gateway and receive a working API key in the response. The key works with any OpenAI-compatible client against https://yiduochan.com/v1 and covers chat, reasoning, text-to-speech, image and video models. Credits are spent per token at published rates; no account, email or signup is required.",
"serviceName": "YiduoChan API Credits"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"wallet": "0x0000000000000000000000000000000000000000",
"api_key": "sk-...",
"base_url": "https://yiduochan.com/v1",
"credited": true,
"amount_usd": "5",
"expires_at": 1788000000,
"models_url": "https://yiduochan.com/v1/models",
"balance_usd": "5",
"transaction_hash": "0x..."
}
}
},
"schema": {
"type": "object",
"$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": {},
"description": "No request body. Payment is carried in the PAYMENT-SIGNATURE header.",
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"api_key",
"base_url",
"amount_usd",
"credited"
],
"properties": {
"wallet": {
"type": "string",
"description": "Buyer address the credits belong to"
},
"api_key": {
"type": "string",
"description": "Bearer token for the OpenAI-compatible API"
},
"base_url": {
"type": "string",
"description": "OpenAI-compatible base URL"
},
"credited": {
"type": "boolean",
"description": "True once the transfer settled and the balance was added"
},
"amount_usd": {
"type": "string",
"description": "Credits purchased, in USD"
},
"expires_at": {
"type": "integer",
"description": "Unix time the API key stops working"
},
"models_url": {
"type": "string",
"description": "Model catalogue endpoint"
},
"balance_usd": {
"type": "string",
"description": "Account balance after this purchase"
},
"transaction_hash": {
"type": "string",
"description": "Settlement transaction"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 7d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/yiduochan-api-credits/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.
Median across 5 endpoints. Use the selector to isolate one.
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
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.
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-09-21 · last up 2026-09-29
- 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
EMBED THIS BADGE
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