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
Paid API for onchain loyalty programs on Base: loyalty token deployment, minting to customer wallets, rewards catalog, vouchers and P2P exchange, usable by agents over REST or MCP.
Pay from $0.001 to $0.01 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
first settlement 2026-04-17 · $470.04 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 99.8%
- uptime 24h
- 100%
- uptime 7d
- 99.3%
- uptime 30d
- 99.8%
- uptime 90d
- 99.8%
- response p95
- 478ms
- avg response
- 163ms
- total checks
- 2,145
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 $0.01 (p14 in Blockchain)
- price (min)
- $0.001
- price (max)
- $0.01
- category percentile (min)
- p14 in Blockchain
- category percentile (max)
- p40 in Blockchain
- endpoints / prices
- 10 / 3
- 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
- 297d
- registrar
- PDR Ltd. d/b/a PublicDomainRegistry.com
- hosting
- custom
- domain created
- 2025-10-17
Identity facts, not a risk score.
traction $158.316 30d · 84 buyers
- volume 30d
- $158.316
- buyers 30d
- 84
- settlements 30d
- 25,188
- first settlement
- 2026-04-17
- last settlement
- 2026-08-13
- top buyer share
- 2% of 30d volume
- trend 7d vs 30d
- 0.85x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $470.04
- settlements all-time
- 70,181
- median settlement 30d
- $0.005
- max settlement 30d
- $0.05
- settled via
- coinbase ($158.32, 25,188 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-derivedLoyal Spark is an onchain loyalty platform that allows businesses to create and manage reward programs, while customers can earn, track, and redeem rewards through blockchain transactions.
- category
- blockchain-loyalty
- in
- body
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| POST | /x402-gateway/recipient-api/accept-offer | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.01 | Base | USDC | header |
| GET | /x402-gateway/recipient-api/balance | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.001 | Base | USDC | header |
| GET | /x402-gateway/recipient-api/balances | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.001 | Base | USDC | header |
| POST | /x402-gateway/recipient-api/cancel-offer | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.005 | Base | USDC | header |
| GET | /x402-gateway/recipient-api/offers | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.001 | Base | USDC | header |
| POST | /x402-gateway/recipient-api/prepare-transfer | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.005 | Base | USDC | header |
| POST | /x402-gateway/recipient-api/redeem-reward | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.01 | Base | USDC | header |
| GET | /x402-gateway/recipient-api/rewards | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.001 | Base | USDC | header |
| GET | /x402-gateway/recipient-api/vouchers | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.001 | Base | USDC | header |
| POST | /x402-gateway/recipient-api/workflow/prepare-reward-redemption | Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest. | $0.005 | Base | USDC | header |
10 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to POST /x402-gateway/recipient-api/accept-offer returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i -X POST 'https://api.loyalspark.online/x402-gateway/recipient-api/accept-offer'
// 402 response (captured by monitor) · 10 payloads · click to expand
[
{
"error": "X-PAYMENT header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"brand": "Loyal Spark",
"version": "2",
"website": "https://loyalspark.online",
"provider": "Loyal Spark",
"builderCode": "bc_wdmnog7m",
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
"documentation": "https://loyalspark.online/for-agents"
},
"payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.loyalspark.online/x402-gateway/recipient-api/balance?method=GET",
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"headers": {
"x-api-key": "rwk_..."
},
"queryParams": {
"token_address": "0x0000000000000000000000000000000000000001"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"resource": "recipient-api/balance"
}
},
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"token_address"
],
"properties": {
"token_address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "EVM address on Base (eip155:8453)."
}
},
"additionalProperties": false
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
},
"inputSchema": {
"type": "object"
}
}
}
},
"builder-code": {
"info": {
"a": "bc_wdmnog7m"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"bodyType": "query",
"description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/balance?method=GET — x402-gateway /recipient-api/balance. Authenticate with header x-api-key: rwk_....",
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"token_address"
],
"properties": {
"token_address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "EVM address on Base (eip155:8453)."
}
},
"additionalProperties": false
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema"
},
"description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape."
}
},
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.loyalspark.online/x402-gateway/recipient-api/balance?method=GET",
"method": "GET",
"mimeType": "application/json"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"headers": {
"x-api-key": "rwk_..."
},
"queryParams": {
"token_address": "0x0000000000000000000000000000000000000001"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"resource": "recipient-api/balance"
}
},
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"token_address"
],
"properties": {
"token_address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "EVM address on Base (eip155:8453)."
}
},
"additionalProperties": false
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
},
"inputSchema": {
"type": "object"
}
}
}
},
"builder-code": {
"info": {
"a": "bc_wdmnog7m"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
},
{
"error": "X-PAYMENT header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"brand": "Loyal Spark",
"version": "2",
"website": "https://loyalspark.online",
"provider": "Loyal Spark",
"builderCode": "bc_wdmnog7m",
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
"documentation": "https://loyalspark.online/for-agents"
},
"payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.loyalspark.online/x402-gateway/recipient-api/balances?method=GET",
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"headers": {
"x-api-key": "rwk_..."
},
"queryParams": {
"token_address": "0x0000000000000000000000000000000000000001"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"resource": "recipient-api/balances"
}
},
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {},
"additionalProperties": false
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
},
"inputSchema": {
"type": "object"
}
}
}
},
"builder-code": {
"info": {
"a": "bc_wdmnog7m"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"bodyType": "query",
"description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/balances?method=GET — x402-gateway /recipient-api/balances. Authenticate with header x-api-key: rwk_....",
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {},
"additionalProperties": false
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema"
},
"description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape."
}
},
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.loyalspark.online/x402-gateway/recipient-api/balances?method=GET",
"method": "GET",
"mimeType": "application/json"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"headers": {
"x-api-key": "rwk_..."
},
"queryParams": {
"token_address": "0x0000000000000000000000000000000000000001"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"resource": "recipient-api/balances"
}
},
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {},
"additionalProperties": false
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
},
"inputSchema": {
"type": "object"
}
}
}
},
"builder-code": {
"info": {
"a": "bc_wdmnog7m"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
},
{
"error": "X-PAYMENT header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"brand": "Loyal Spark",
"version": "2",
"website": "https://loyalspark.online",
"provider": "Loyal Spark",
"builderCode": "bc_wdmnog7m",
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
"documentation": "https://loyalspark.online/for-agents"
},
"payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.loyalspark.online/x402-gateway/recipient-api/offers?method=GET",
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"headers": {
"x-api-key": "rwk_..."
},
"queryParams": {
"token_address": "0x0000000000000000000000000000000000000001"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"resource": "recipient-api/offers"
}
},
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"token_address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "EVM address on Base (eip155:8453)."
}
},
"additionalProperties": false
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
},
"inputSchema": {
"type": "object"
}
}
}
},
"builder-code": {
"info": {
"a": "bc_wdmnog7m"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"bodyType": "query",
"description": "HTTP GET https://api.loyalspark.online/x402-gateway/recipient-api/offers?method=GET — x402-gateway /recipient-api/offers. Authenticate with header x-api-key: rwk_....",
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"token_address": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "EVM address on Base (eip155:8453)."
}
},
"additionalProperties": false
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema"
},
"description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape."
}
},
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.loyalspark.online/x402-gateway/recipient-api/offers?method=GET",
"method": "GET",
"mimeType": "application/json"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"headers": {
"x-api-key": "rwk_..."
},
"queryParams": {
"token_address": "0x0000000000000000000000000000000000000001"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"resource": "recipient-api/offers"
}
},
"inputSchema": {
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},
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}
},
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],
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],
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},
"method": {
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],
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},
"headers": {
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}
},
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}
}
},
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},
"output": {
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],
"properties": {
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},
"example": {}
}
},
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}
}
}
},
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},
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"properties": {
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},
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"items": {
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"pattern": "^[a-z0-9_]{1,32}$"
},
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"description": "Wallet builder code"
}
},
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}
},
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},
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"builderCode": "bc_wdmnog7m",
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
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},
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},
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}
},
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"description": "Wallet builder code"
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},
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},
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},
"description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape."
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},
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},
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},
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},
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},
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},
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"queryParams": {
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},
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],
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},
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"headers": {
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}
},
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}
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},
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{
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"brand": "Loyal Spark",
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"builderCode": "bc_wdmnog7m",
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
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},
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},
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},
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"description": "Wallet builder code"
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}
}
},
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
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"bodyType": "json",
"description": "HTTP POST https://api.loyalspark.online/x402-gateway/recipient-api/accept-offer?method=POST — x402-gateway /recipient-api/accept-offer. Authenticate with header x-api-key: rwk_....",
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},
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},
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},
"description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape."
}
},
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"maxTimeoutSeconds": 300
}
],
"resource": {
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"method": "POST",
"mimeType": "application/json"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"headers": {
"x-api-key": "rwk_..."
},
"bodyType": "json"
},
"output": {
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"example": {
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"resource": "recipient-api/accept-offer"
}
},
"inputSchema": {
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"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
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],
"properties": {
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"format": "uuid"
}
},
"additionalProperties": true
}
},
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"required": [
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],
"properties": {
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],
"properties": {
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},
"method": {
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],
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},
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},
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},
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}
},
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},
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},
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},
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"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
},
{
"error": "X-PAYMENT header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"brand": "Loyal Spark",
"version": "2",
"website": "https://loyalspark.online",
"provider": "Loyal Spark",
"builderCode": "bc_wdmnog7m",
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
"documentation": "https://loyalspark.online/for-agents"
},
"payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.loyalspark.online/x402-gateway/recipient-api/workflow/prepare-reward-redemption?method=POST",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"headers": {
"x-api-key": "rwk_..."
},
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"resource": "recipient-api/workflow/prepare-reward-redemption"
}
},
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"description": "JSON body for POST /recipient-api/workflow/prepare-reward-redemption. See https://loyalspark.online/openapi.json for the full schema.",
"additionalProperties": true
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object"
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
},
"inputSchema": {
"type": "object"
}
}
}
},
"builder-code": {
"info": {
"a": "bc_wdmnog7m"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"description": "HTTP POST https://api.loyalspark.online/x402-gateway/recipient-api/workflow/prepare-reward-redemption?method=POST — x402-gateway /recipient-api/workflow/prepare-reward-redemption. Authenticate with header x-api-key: rwk_....",
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"description": "JSON body for POST /recipient-api/workflow/prepare-reward-redemption. See https://loyalspark.online/openapi.json for the full schema.",
"additionalProperties": true
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema"
},
"description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape."
}
},
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.loyalspark.online/x402-gateway/recipient-api/workflow/prepare-reward-redemption?method=POST",
"method": "POST",
"mimeType": "application/json"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"headers": {
"x-api-key": "rwk_..."
},
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"resource": "recipient-api/workflow/prepare-reward-redemption"
}
},
"inputSchema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"description": "JSON body for POST /recipient-api/workflow/prepare-reward-redemption. See https://loyalspark.online/openapi.json for the full schema.",
"additionalProperties": true
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object"
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
},
"inputSchema": {
"type": "object"
}
}
}
},
"builder-code": {
"info": {
"a": "bc_wdmnog7m"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/loyal-spark/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
30d UPTIME 99.8%
RESPONSE TIME
AVG RESP 164ms
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 288ms
● OK 229ms
● OK 100ms
● OK 142ms
● SLOW 321ms
● OK 211ms
● SLOW 312ms
● SLOW 274ms
● SLOW 409ms
● OK 211ms
● SLOW 274ms
● SLOW 301ms
● SLOW 470ms
● SLOW 499ms
● OK 231ms
● OK 211ms
● SLOW 266ms
● OK 233ms
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/loyal-spark?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/loyal-spark.svg" alt="Loyal Spark listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/loyal-spark?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/loyal-spark?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/loyal-spark.svg?data=uptime" alt="Loyal Spark uptime on x402-list" height="28"> </a>