Fixed-price chat completions for gpt-5
Fixed-price chat completions for gpt-5.5 on FarOut: flat $0.002 per call (includes up to 4,000 input + 1,000 output tokens). Rate: $0.020/1M input tokens, $0.120/1M output tokens. Pay with USDC on Base using x402. No API key, no account, no prepaid balance.
2000 (raw units)
price
8
calls / 30d
3
unique payers
2026-09-12
updated
Provider
farouter.tech · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "upto",
"network": "eip155:8453",
"payTo": "0x8e3c3e9c91cc0161b5e1cf138180ef3641d2371e",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x8e3c3e9c91cc0161b5e1cf138180ef3641d2371e",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "GpxxoH3s8CqxyyWJvbDQDERbJpRgXei5jSHJjKmELtSZ",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "2000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"max_tokens": 50,
"messages": [
{
"content": "hi",
"role": "user"
}
],
"model": "gpt-5.5"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"choices": [
{
"finish_reason": "stop",
"message": {
"content": "Hello! How can I help?",
"role": "assistant"
}
}
],
"usage": {
"completion_tokens": 8,
"prompt_tokens": 6
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"additionalProperties": true,
"properties": {
"max_completion_tokens": {
"description": "Alias of max_tokens (gpt-5.x models).",
"minimum": 1,
"type": "integer"
},
"max_tokens": {
"description": "Output token budget. Sets your spending cap; actual usage is what gets settled (true-up).",
"minimum": 1,
"type": "integer"
},
"messages": {
"description": "Chat messages, [OI]-compatible {role, content}.",
"items": {
"additionalProperties": true,
"properties": {
"content": {},
"role": {
"enum": [
"system",
"developer",
"user",
"assistant",
"tool"
],
"type": "string"
}
},
"required": [
"role",
"content"
],
"type": "object"
},
"minItems": 1,
"type": "array"
},
"model": {
"description": "Model id from GET /v1/models, e.g. glm-5.3. No provider prefix.",
"type": "string"
},
"stream": {
"description": "SSE streaming.",
"type": "boolean"
},
"temperature": {
"description": "Sampling temperature.",
"maximum": 2,
"minimum": 0,
"type": "number"
}
},
"required": [
"model",
"messages"
],
"type": "object"
},
"bodyType": {
"const": "json"
},
"method": {
"const": "POST"
},
"type": {
"const": "http"
}
},
"required": [
"type",
"method",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"choices": {
"items": {
"properties": {
"finish_reason": {
"type": "string"
},
"message": {
"properties": {
"content": {
"type": "string"
},
"role": {
"type": "string"
}
},
"type": "object"
}
},
"type": "object"
},
"type": "array"
},
"usage": {
"properties": {
"completion_tokens": {
"type": "integer"
},
"prompt_tokens": {
"type": "integer"
}
},
"type": "object"
}
},
"type": {
"const": "json"
}
},
"required": [
"type",
"example"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"faroutQuote": {
"info": {
"cachePricePer1M": 0,
"inputPricePer1M": 39.215686,
"inputTokens": 1,
"model": "gpt-5.5",
"outputPricePer1M": 39.215686,
"outputTokens": 50,
"usd": 0.002
},
"schema": {
"properties": {
"cachePricePer1M": {
"type": "number"
},
"inputPricePer1M": {
"type": "number"
},
"inputTokens": {
"type": "integer"
},
"model": {
"type": "string"
},
"outputPricePer1M": {
"type": "number"
},
"outputTokens": {
"type": "integer"
},
"usd": {
"type": "number"
}
},
"required": [
"usd",
"model"
],
"type": "object"
}
}
}Use it
curl
curl "https://farouter.tech/v1/models/gpt-5.5/chat/completions" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://farouter.tech/v1/models/gpt-5.5/chat/completions");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://farouter.tech/v1/models/gpt-5.5/chat/completions")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/7139.json, and this resource appears in /discovery/resources and /discovery/search.