LLM Chat Completions API
LLM inference API: OpenAI-compatible chat completions for 100+ AI models (DeepSeek, GPT, Claude, Gemini, Grok, GLM, Qwen, Kimi, Llama, Mistral). Suited for AI agents that need on-demand text generation, coding or tool calling paid per request in USDC on Base with x402: no account, no API key. Model in body.model (GET /v1/models); streaming supported. Exact price in the 402 quote; automatic refund if the model fails.
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/v1/chat/completions- MIME type
- application/json
- First seen
- 2026-10-16T01:50:19.913Z
- Last seen
- Tags
- LLM, chat-completions, openai-compatible, claude, gpt
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
- 131 ms
- Average latency
- 306 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
{
"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": "Choose any current model; GET /v1/models for the live catalog.",
"examples": [
"anthropic/claude-fable-5",
"anthropic/claude-fable-5.1",
"anthropic/claude-haiku-4.5",
"anthropic/claude-haiku-5.5",
"anthropic/claude-opus-4.5",
"anthropic/claude-opus-4.6",
"anthropic/claude-opus-4.7",
"anthropic/claude-opus-4.8",
"anthropic/claude-opus-4.8-fast",
"anthropic/claude-opus-5",
"anthropic/claude-opus-5-fast",
"anthropic/claude-opus-5.5",
"anthropic/claude-opus-5.5-fast",
"anthropic/claude-sonnet-4.5",
"anthropic/claude-sonnet-4.6",
"anthropic/claude-sonnet-5",
"anthropic/claude-sonnet-5.5",
"deepseek/deepseek-chat",
"deepseek/deepseek-reasoner",
"deepseek/deepseek-v3.2",
"deepseek/deepseek-v4-flash-0731",
"deepseek/deepseek-v4-flash-0731-fast",
"deepseek/deepseek-v4-flash-vision-exp",
"deepseek/deepseek-v4-pro",
"deepseek/deepseek-v4-pro-0813",
"deepseek/deepseek-v4.1-flash",
"google/gemini-2.5-flash",
"google/gemini-2.5-flash-lite",
"google/gemini-2.5-pro",
"google/gemini-3-flash-preview",
"google/gemini-3.1-flash-lite",
"openai/gpt-4.1",
"openai/gpt-4.1-mini",
"openai/gpt-4.1-nano",
"openai/gpt-4o",
"openai/gpt-4o-mini",
"openai/gpt-5-mini",
"openai/gpt-5.1",
"openai/gpt-5.2",
"openai/gpt-5.2-pro",
"openai/gpt-5.3-codex",
"openai/gpt-5.4",
"openai/gpt-5.4-mini",
"openai/gpt-5.4-nano",
"openai/gpt-5.4-pro",
"openai/gpt-5.5",
"openai/gpt-5.5-pro",
"openai/gpt-5.6-luna",
"openai/gpt-5.6-luna-pro",
"openai/gpt-5.6-sol",
"openai/gpt-5.6-sol-pro",
"openai/gpt-5.6-terra",
"openai/gpt-5.6-terra-pro",
"openai/gpt-6-astra",
"openai/gpt-6-astra-pro",
"openai/gpt-6-luna",
"openai/gpt-6-sol",
"openai/gpt-6.1-sol",
"openai/gpt-6.1-sol-ultrafast",
"openai/gpt-oss-120b"
],
"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": [
"model",
"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 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": "Choose any current model; GET /v1/models for the live catalog.",
"examples": [
"anthropic/claude-fable-5",
"anthropic/claude-fable-5.1",
"anthropic/claude-haiku-4.5",
"anthropic/claude-haiku-5.5",
"anthropic/claude-opus-4.5",
"anthropic/claude-opus-4.6",
"anthropic/claude-opus-4.7",
"anthropic/claude-opus-4.8",
"anthropic/claude-opus-4.8-fast",
"anthropic/claude-opus-5",
"anthropic/claude-opus-5-fast",
"anthropic/claude-opus-5.5",
"anthropic/claude-opus-5.5-fast",
"anthropic/claude-sonnet-4.5",
"anthropic/claude-sonnet-4.6",
"anthropic/claude-sonnet-5",
"anthropic/claude-sonnet-5.5",
"deepseek/deepseek-chat",
"deepseek/deepseek-reasoner",
"deepseek/deepseek-v3.2",
"deepseek/deepseek-v4-flash-0731",
"deepseek/deepseek-v4-flash-0731-fast",
"deepseek/deepseek-v4-flash-vision-exp",
"deepseek/deepseek-v4-pro",
"deepseek/deepseek-v4-pro-0813",
"deepseek/deepseek-v4.1-flash",
"google/gemini-2.5-flash",
"google/gemini-2.5-flash-lite",
"google/gemini-2.5-pro",
"google/gemini-3-flash-preview",
"google/gemini-3.1-flash-lite",
"openai/gpt-4.1",
"openai/gpt-4.1-mini",
"openai/gpt-4.1-nano",
"openai/gpt-4o",
"openai/gpt-4o-mini",
"openai/gpt-5-mini",
"openai/gpt-5.1",
"openai/gpt-5.2",
"openai/gpt-5.2-pro",
"openai/gpt-5.3-codex",
"openai/gpt-5.4",
"openai/gpt-5.4-mini",
"openai/gpt-5.4-nano",
"openai/gpt-5.4-pro",
"openai/gpt-5.5",
"openai/gpt-5.5-pro",
"openai/gpt-5.6-luna",
"openai/gpt-5.6-luna-pro",
"openai/gpt-5.6-sol",
"openai/gpt-5.6-sol-pro",
"openai/gpt-5.6-terra",
"openai/gpt-5.6-terra-pro",
"openai/gpt-6-astra",
"openai/gpt-6-astra-pro",
"openai/gpt-6-luna",
"openai/gpt-6-sol",
"openai/gpt-6.1-sol",
"openai/gpt-6.1-sol-ultrafast",
"openai/gpt-oss-120b"
],
"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": [
"model",
"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"
}