JSON Validate, Repair, Convert,
Validate, repair, format, query, diff, convert, and canonicalize JSON in one call. via the JSON Validate, Repair, Convert, Query & Diff API for AI (via X402).
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.
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 0.01 USDC on Base to 0xE974…C2F08. The signed payment is good for 5 minutes.
- Paid to
- 0xE974…C2F08
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 10000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 8ugAWA…zQT3b
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"op": "query",
"data": {
"order": {
"id": "A-1029",
"items": [
{
"qty": 2,
"sku": "BIL-CUE-07"
},
{
"qty": 5,
"sku": "BIL-CHALK-01"
}
]
}
},
"options": {
"jsonpath": "$.order.items[*].sku"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"op": "query",
"valid": true,
"matches": [
{
"path": "$.order.items[0].sku",
"value": "BIL-CUE-07"
},
{
"path": "$.order.items[1].sku",
"value": "BIL-CHALK-01"
}
],
"api_version": "1.0.0",
"match_count": 2
}
}
},
"schema": {
"type": "object",
"$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": [
"op"
],
"properties": {
"op": {
"type": "string",
"description": "What you want to do. Choose one of: validate, repair, format, canonicalize, convert, query, diff, patch, schema, stats."
},
"data": {
"type": "object",
"description": "The JSON value you want to work with - can be an object, array, string, number, or anything valid. Required for all operations except validate and repair (which use data_raw instead)."
},
"options": {
"type": "object",
"description": "Extra settings for the chosen operation. For example: indent, sort_keys, jsonpath, pointer, to (for convert), schema, data_b (for diff/patch). All optional - the API uses sensible defaults."
},
"data_raw": {
"type": "string",
"description": "The raw text you want to validate or repair. Use this instead of data only for the validate and repair operations, because those need to see the original broken text exactly as-is."
}
},
"additionalProperties": false
},
"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",
"required": [
"api_version",
"op",
"valid",
"matches",
"match_count"
],
"properties": {
"op": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"matches": {
"type": "array",
"items": {
"type": "object"
}
},
"api_version": {
"type": "string"
},
"match_count": {
"type": "integer"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-14 19:48Z
- Last indexed by Roundhouse
- 2026-09-24 07:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 00:45Z
- 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. 27 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 JSON Validate, Repair, Convert, 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=JSON%20Validate%2C%20Repair%2C%20Convert%2C%20' 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://json-suite.underscoredone.com/json, 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://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.