← The evidence ledger
Evidence row 61580
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-opus-5
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 80a9b8b50c37337f1ef0e8b999da39706587adda0b044484a557fb873a3f790e
- Leaf
- 0x8a4517e179e3df699f47bf799e92356cd7d6393dc2d9b938271799c6a7293b2d
What was observed
{
"endpoints": [
[
"x402",
"https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-opus-5"
]
],
"name": "Claude Opus 5 API",
"owner_address": "0xf7eaf699c6e55887184809c57d597a64ab86d493",
"raw": {
"accepts": [
{
"amount": "1400",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"paymentFlow": "upfront",
"version": "2"
},
"maxTimeoutSeconds": 180,
"network": "eip155:8453",
"payTo": "0xf7eaf699C6E55887184809c57d597a64aB86d493",
"scheme": "exact"
}
],
"description": "Claude Opus 5 API (anthropic/claude-opus-5): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Claude Opus 5 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"max_tokens": 12,
"messages": [
{
"content": "Reply with OK",
"role": "user"
}
],
"model": "anthropic/claude-opus-5",
"stream": false
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"choices": [
{
"finish_reason": "stop",
"index": 0,
"message": {
"content": "OK",
"role": "assistant"
}
}
],
"created": 1791979200,
"id": "chatcmpl-7f3c2a91",
"model": "anthropic/claude-opus-5",
"object": "chat.completion",
"usage": {
"completion_tokens": 1,
"prompt_tokens": 9,
"total_tokens": 10
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"max_tokens": {
"description": "Optional, default 4096",
"maximum": 16384,
"minimum": 1,
"type": "integer"
},
"messages": {
"items": {
"properties": {
"content": {
"type": [
"string",
"array",
"null"
]
},
"role": {
"enum": [
"system",
"user",
"assistant",
"tool",
"developer"
],
"type": "string"
}
},
"required": [
"role"
],
"type": "object"
},
"minItems": 1,
"type": "array"
},
"model": {
"description": "Optional: fixed by the route (anthropic/claude-opus-5)",
"type": "string"
},
"response_format": {
"type": "object"
},
"stream": {
"description": "true: server-sent events after payment",
"type": "boolean"
},
"temperature": {
"maximum": 2,
"minimum": 0,
"type": "number"
},
"tools": {
"type": "array"
}
},
"required": [
"messages"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"choices": {
"items": {
"required": [
"index",
"message",
"finish_reason"
],
"type": "object"
},
"type": "array"
},
"id": {
"type": "string"
},
"model": {
"type": "string"
},
"object": {
"const": "chat.completion"
},
"usage": {
"type": "object"
}
},
"required": [
"id",
"object",
"model",
"choices"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792034933/bazaar-icons/c63879d0dabbf36c.png",
"lastUpdated": "2026-10-15T14:24:25.289Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-15T14:24:24.829Z"
},
"resource": "https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-opus-5",
"serviceName": "Claude Opus 5 API",
"tags": [
"claude-opus-5",
"claude",
"anthropic",
"llm",
"chat-completions"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Claude Opus 5 API (anthropic/claude-opus-5): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Claude Opus 5 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer."
}What the leaf hashes
{"body":"80a9b8b50c37337f1ef0e8b999da39706587adda0b044484a557fb873a3f790e","id":61580,"kind":"listing","method":"baseline/1","observed_us":1793025451150884,"prev":null,"subject":"x402_bazaar:https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-opus-5","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x8a44bca87242b664523f7f1690b5276384596b9ad57adf20ba3e52afac79380c
- 0x1d954ab04ddc9ff357b0a663b1b0c51a649f6dc0212b47ada0cf505c47e81f69
- 0xd2239a2c95f5a2fc85ed414513efd00026132296b996f00320611bc8e8290d19
- 0x5679b6b1f255b7b7e73e698b11196d6a1e83a07c33442db1b431749e2ec7d891
- 0x75ada76fa383d143ce6fe475dd239bd01fed060176e9f8f740bfe3cb026485aa
- 0xfa6ceb6170fd3f3f6dc54607b2d8556382dacdc2c170f816a2aee3b0fac183e6
- 0x613ca595189b563f748635ba224c1251ed39f911776e634646bccfa93ea7df44
- 0x1e729652f04041908588286935cf43d23ab47ecf781f76a9c7e47060b5976444
- 0x118f1fb2215c57e384aa5784b3b3bfa5e2b496f4e95d98cfd42920ad1c735392
- 0x982630687ce64555ae64a26aec05bb57bc8d6dbc7f1a3b6335e749ef24ab7401
- 0x231f490acbb86d1ac0f80fbb2d49e85abc0ff9c6392ca16679f2cdf49b2863ac
- 0x8cb11bf3bc7d3a6f859c170a167821024ffc4758cdfd2cc96f61a3291aefb637
- 0xd5ec7ffaecac790d8adfa0620b0a5494758f862e3090b49e556a6ecbad2f0782
- 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
- 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
- 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae