Claude Sonnet 5.5 API
Claude Sonnet 5.5 API (anthropic/claude-sonnet-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 Sonnet 5.5 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.
Offering
- Provider
- agent402-arb.rosariovitale0096.workers.dev
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Api
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://agent402-arb.rosariovitale0096.workers.dev/llm/claude-sonnet-5.5- MIME type
- application/json
- First seen
- 2026-10-16T01:50:19.913Z
- Last seen
- Tags
- claude-sonnet-5.5, claude, anthropic, LLM, chat-completions
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.0014 USDC
Atomic price: 1400 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1400",
"payTo": "0xf7eaf699C6E55887184809c57d597a64aB86d493"
}
]Observed health
- Status
- Healthy
- Latest latency
- 142 ms
- Average latency
- 484 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"POST",
"PUT",
"PATCH"
]
},
"bodyType": {
"type": "string",
"enum": [
"json",
"form-data",
"text"
]
},
"body": {
"type": "object",
"properties": {
"model": {
"type": "string",
"description": "Optional: fixed by the route (anthropic/claude-sonnet-5.5)"
},
"messages": {
"type": "array",
"minItems": 1,
"items": {
"type": "object",
"properties": {
"role": {
"type": "string",
"enum": [
"system",
"user",
"assistant",
"tool",
"developer"
]
},
"content": {
"type": [
"string",
"array",
"null"
]
}
},
"required": [
"role"
]
}
},
"max_tokens": {
"type": "integer",
"minimum": 1,
"maximum": 16384,
"description": "Optional, default 4096"
},
"stream": {
"type": "boolean",
"description": "true: server-sent events after payment"
},
"temperature": {
"type": "number",
"minimum": 0,
"maximum": 2
},
"response_format": {
"type": "object"
},
"tools": {
"type": "array"
}
},
"required": [
"messages"
]
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"additionalProperties": false
}Output 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-sonnet-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"
}