payload402
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The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"llms": "/llms.txt",
"asset": "USDC on Base",
"error": "payment_required",
"price": "$0.01",
"network": "eip155:8453",
"openapi": "/openapi.json",
"service": "payload402",
"when_to_use": "Invoices, travel or expense math, and any task needing ISO currency conversion with a cited ECB reference rate.",
"example_request": "/convert?amount=10&from=USD&to=EUR"
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.001 USDC on Base to 0x5553…6d112. The signed payment is good for 5 minutes.
- Paid to
- 0x5553…6d112
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x555379f9F4750EB34ffc8b3DAf8eda2eA0F6d112",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"to": "EUR",
"from": "USD",
"amount": 10
}
},
"output": {
"type": "json",
"example": {
"to": "EUR",
"date": "2026-08-29",
"from": "USD",
"note": "ECB daily reference rates, not live quotes",
"rate": 0.85825,
"amount": 10,
"source": "frankfurter",
"converted": 8.5825
}
}
},
"schema": {
"type": "object",
"$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"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"amount",
"from",
"to"
],
"properties": {
"to": {
"type": "string",
"description": "ISO 4217 target code (e.g. EUR, USD, HKD)"
},
"from": {
"type": "string",
"description": "ISO 4217 source code (e.g. USD, EUR, GBP, JPY)"
},
"amount": {
"type": "number",
"description": "Positive amount in the source currency"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-30 15:04Z
- Last indexed by Roundhouse
- 2026-09-04 20:20Z
- Last enriched (probe, favicon, geo)
- 2026-08-29 14:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 6 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service payload402 and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=payload402' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://payload402.edgebytenet.workers.dev/convert, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://app.roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://app.roundhouseai.io/skill.md first — it is the whole procedure.