← The evidence ledger
Evidence row 61579
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-haiku-5.5
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 10447421a05ce981842f7d20ae987501071796873c5034eb90b2d68e0b4f24f7
- Leaf
- 0x43b6aa36130be52ec88f2eb01d3303f49d347a04fa9581fac78af75a76e9d9ec
What was observed
{
"endpoints": [
[
"x402",
"https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-haiku-5.5"
]
],
"name": "Claude Haiku 5.5 API",
"owner_address": "0xf7eaf699c6e55887184809c57d597a64ab86d493",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"paymentFlow": "upfront",
"version": "2"
},
"maxTimeoutSeconds": 180,
"network": "eip155:8453",
"payTo": "0xf7eaf699C6E55887184809c57d597a64aB86d493",
"scheme": "exact"
}
],
"description": "Claude Haiku 5.5 API (anthropic/claude-haiku-5.5): 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 Haiku 5.5 on demand. 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-haiku-5.5",
"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-haiku-5.5",
"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-haiku-5.5)",
"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": "2026-10-15T17:21:01.372Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-15T17:20:57.198Z"
},
"resource": "https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-haiku-5.5",
"serviceName": "Claude Haiku 5.5 API",
"tags": [
"claude-haiku-5.5",
"claude",
"anthropic",
"llm",
"chat-completions"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Claude Haiku 5.5 API (anthropic/claude-haiku-5.5): 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 Haiku 5.5 on demand. 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":"10447421a05ce981842f7d20ae987501071796873c5034eb90b2d68e0b4f24f7","id":61579,"kind":"listing","method":"baseline/1","observed_us":1793025451149268,"prev":null,"subject":"x402_bazaar:https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-haiku-5.5","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).
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- 0x99b783b5834eb31017f9b055d1682de7f4807182eb2e5a5d87bcc4b3b1554d59
- 0x8246eddcf9aa9d43de1e11d1f7a9165eeffdbb71b44d8e6a6f785b7bdf44ca68
- 0xddcd41e211823de2765dc2fb5d109d2a508eae6353b7cb6846f4c5c1cd6dc37e
- 0xbd1100711391ca8a4b6f050db20479fdc1610121423e00cce314ba5e1a1468e3
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- 0xa01b5bca0c214269697f527524974087b06149387d7cbefda814e53051695c9d
- 0x60b91f773fa3c91ef752edc3e72b14aec43590de73fb46a458b7100f8e74b4a7
- 0x2b1b47804e83988d7fd5ed8179b2334f3f43b318109b54142f6c6bd749076f9e
- 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
- 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae