Locus x402 Services
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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.
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 0x3C5C…7d5fA. The signed payment is good for 30 minutes.
- Paid to
- 0x3C5C…7d5fA
- USD Coin contract
- 0x8335…02913
- Payment window
- 30 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"facilitatorAddress": "0x14fDa13953Fc30428938E6BF950d036e77214e52",
"assetTransferMethod": "permit2"
},
"payTo": "0x3C5CBe28ECA3b96023c45D3f877da834F1C7d5fA",
"amount": "1000",
"scheme": "upto",
"network": "eip155:8453",
"maxTimeoutSeconds": 1800
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"model": "claude-haiku-4-5",
"messages": [
{
"role": "user",
"content": "Hello from x402"
}
],
"max_tokens": 16
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"data": {},
"payment": {
"scheme": "exact",
"settledUsdc": "0.001000",
"authorizedMaxUsdc": "0.001000"
},
"request": {
"id": "00000000-0000-4000-8000-000000000000",
"statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
},
"success": 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",
"required": [
"model",
"messages",
"max_tokens"
],
"properties": {
"model": {
"type": "string",
"description": "Model ID. Public metered x402 supports 'claude-opus-4-7', 'claude-opus-4-6', 'claude-sonnet-4-6', and 'claude-haiku-4-5' (including its dated ID)."
},
"tools": {
"type": "array",
"items": {
"type": "string"
},
"description": "Tool definitions for function calling. Each: { name, description, input_schema: { type: \"object\", properties: {...} } }"
},
"top_k": {
"type": "number",
"description": "Top-K sampling (only sample from top K tokens)"
},
"top_p": {
"type": "number",
"description": "Nucleus sampling threshold"
},
"system": {
"type": "array",
"items": {
"type": "string"
},
"description": "System prompt. Can be a string or array of content blocks: [{ type: \"text\", text: \"...\" }]"
},
"messages": {
"type": "array",
"items": {
"type": "object",
"additionalProperties": true
},
"description": "Conversation messages. Each: { role: \"user\"|\"assistant\", content: \"text\" } or multimodal: { role: \"user\", content: [{ type: \"text\", text: \"...\" }, { type: \"image\", source: { type: \"base64\", media_type: \"image/png\", data: \"...\" } }] }"
},
"thinking": {
"type": "object",
"description": "Enable extended thinking. { type: \"enabled\", budget_tokens: 10000 }. Thinking tokens are billed at the output token rate.",
"additionalProperties": true
},
"max_tokens": {
"type": "number",
"description": "Maximum output tokens. x402 enforces the selected model limit (128k Opus, 64k Sonnet/Haiku)."
},
"temperature": {
"type": "number",
"description": "Sampling temperature (0.0–1.0, default 1.0)"
},
"tool_choice": {
"type": "object",
"description": "Tool use control: { type: \"auto\" } (default), { type: \"any\" }, { type: \"tool\", name: \"tool_name\" }, or { type: \"none\" }",
"additionalProperties": true
},
"stop_sequences": {
"type": "array",
"items": {
"type": "string"
},
"description": "Custom stop sequences to end generation"
}
},
"additionalProperties": true
},
"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"
}
}
}
}
}
},
"eip2612GasSponsoring": {
"info": {
"version": "1",
"description": "The facilitator accepts EIP-2612 gasless Permit to `Permit2` canonical contract."
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"from",
"asset",
"spender",
"amount",
"nonce",
"deadline",
"signature",
"version"
],
"properties": {
"from": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the sender."
},
"asset": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the ERC-20 token contract."
},
"nonce": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The current nonce of the sender."
},
"amount": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The amount to approve (uint256). Typically MaxUint."
},
"spender": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the spender (Canonical Permit2)."
},
"version": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)*$",
"description": "Schema version identifier."
},
"deadline": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The timestamp at which the signature expires."
},
"signature": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$",
"description": "The 65-byte concatenated signature (r, s, v) as a hex string."
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-12 21:16Z
- Last indexed by Roundhouse
- 2026-09-11 21:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 10:15Z
- x402 version
- 2
- Max timeout
- 1800s
- Liveness probe
- HTTP 404
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. 19 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 Locus x402 Services 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=Locus%20x402%20Services' 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://anthropic.x402.stage.paywithlocus.com/anthropic/chat, 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.