Chit402
Chit: the x402 receipt that doesn
InferenceLiveeip155:8453Exactvia cdp
TreasuryPossession-bookSpend-receiptx402Usdc
Calls · 30d
44↑ 30%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 21 snapshots so far.
$0.99
Verified settled volume
148 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0020
Listed price
As published in the catalog. Always read the live 402 before paying.
45
Calls · 30d
Upstream's own call count for this endpoint, not ours.
8
Unique payers · 30d
Last called 2026-09-24 12:29Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x23f713411c30BBd9A989c9cbC22EB0b55F7f7334The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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.
{
"error": {
"code": "payment_required",
"type": "payment_required",
"message": "Payment required. Retry with an X-PAYMENT or PAYMENT-SIGNATURE header for the amount in `accepts[0]`."
},
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"nonce": "0xd880d4095ca681da3e1a8e1ad7bdbcd44a321ac2f41a81637266f4eb36dd7ccd",
"taskId": "xfuel-544e8371-7191-4eed-a760-8436c686183a",
"version": "2",
"expiresAt": 1789192056811
},
"payTo": "0x23f713411c30BBd9A989c9cbC22EB0b55F7f7334",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"nonce": "0xcf8193bd960803226726753a19961cbfcc0edc3651a487524fa6b14b5b6cc77c",
"taskId": "xfuel-544e8371-7191-4eed-a760-8436c686183a",
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
"expiresAt": 1789192056811
},
"payTo": "58Qo8QTJ1Sd4aXSygwAeBLNL3VrXRmfUCceB6b5RJCx6",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://api.chit402.com/v1/chat/completions",
"tags": [
"llm",
"openai-compatible",
"chat-completions",
"inference"
],
"iconUrl": "https://api.chit402.com/chit402-icon.svg",
"mimeType": "application/json",
"description": "Treasury desk and possession book for agent spend. Who paid which call — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.",
"serviceName": "Chit402"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"model": "xfuel/auto",
"messages": [
{
"role": "user",
"content": "Hello"
}
],
"max_tokens": 500
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "chatcmpl-abc123",
"model": "xfuel/auto",
"usage": {
"total_tokens": 15,
"prompt_tokens": 10,
"completion_tokens": 5
},
"xfuel": {
"verify_url": "https://api.xfuel.app/receipt/xfuel-abc123"
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Hello!"
},
"finish_reason": "stop"
}
],
"created": 1700000000
}
}
},
"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": [
"messages"
],
"properties": {
"model": {
"type": "string",
"description": "Model id from GET /v1/models; xfuel/auto routes automatically"
},
"stream": {
"type": "boolean"
},
"messages": {
"type": "array",
"items": {
"type": "object",
"required": [
"role",
"content"
],
"properties": {
"role": {
"enum": [
"system",
"user",
"assistant"
],
"type": "string"
},
"content": {
"type": "string"
}
}
},
"description": "OpenAI-style chat messages array"
},
"max_tokens": {
"type": "integer",
"description": "Output token budget"
},
"temperature": {
"type": "number",
"maximum": 2,
"minimum": 0
}
}
},
"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"
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.002USDC≈ $0.002 USD
on Base · exact scheme
Pay 0.002 USDC on Base to 0x23f7…f7334. The signed payment is good for 2 minutes.
- Paid to
- 0x23f7…f7334
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 2000 smallest units
2000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
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
- 58Qo8Q…RJCx6
- Token contract
- EPjFWd…TDt1v
- Payment window
- 2 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"nonce": "0xc7dfb75dc733cc0aa0f1868dd32a7de6b3c45625d86d52c3d206b5897c8c5e3b",
"taskId": "xfuel-5929df7b-22cc-49c2-8ad0-d9894ff083b9",
"version": "2",
"expiresAt": 1790275988588
},
"payTo": "0x23f713411c30BBd9A989c9cbC22EB0b55F7f7334",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"nonce": "0xc4112770c7bfa1e6f33247f6f943802a7dd6d5070c24d0b3286d3070d7cc6d7a",
"taskId": "xfuel-5929df7b-22cc-49c2-8ad0-d9894ff083b9",
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
"expiresAt": 1790275988588
},
"payTo": "58Qo8QTJ1Sd4aXSygwAeBLNL3VrXRmfUCceB6b5RJCx6",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"model": "xfuel/auto",
"messages": [
{
"role": "user",
"content": "Hello"
}
],
"max_tokens": 500
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "chatcmpl-abc123",
"model": "xfuel/auto",
"usage": {
"total_tokens": 15,
"prompt_tokens": 10,
"completion_tokens": 5
},
"xfuel": {
"verify_url": "https://api.xfuel.app/receipt/xfuel-abc123"
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Hello!"
},
"finish_reason": "stop"
}
],
"created": 1700000000
}
}
},
"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": [
"messages"
],
"properties": {
"model": {
"type": "string",
"description": "Model id from GET /v1/models; xfuel/auto routes automatically"
},
"stream": {
"type": "boolean"
},
"messages": {
"type": "array",
"items": {
"type": "object",
"required": [
"role",
"content"
],
"properties": {
"role": {
"enum": [
"system",
"user",
"assistant"
],
"type": "string"
},
"content": {
"type": "string"
}
}
},
"description": "OpenAI-style chat messages array"
},
"max_tokens": {
"type": "integer",
"description": "Output token budget"
},
"temperature": {
"type": "number",
"maximum": 2,
"minimum": 0
}
}
},
"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"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-24 18:51Z
- Last indexed by Roundhouse
- 2026-09-24 22:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 05:45Z
- x402 version
- 2
- Max timeout
- 120s
- 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. 21 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 Chit402 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=Chit402' 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://api.chit402.com/v1/chat/completions, 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.