OpenAI gpt-6.1-sol and more
gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI chat models (gpt-6, gpt-6.1, gpt-5.6, gpt-5.5, gpt-5.4, gpt-5.x, gpt-4.1, gpt-4o, o-series) via x402 at OpenAI list rates, plus $0.0025 per call on Base or $0.002 on Solana, paid in USDC on Base or Solana. Three speeds where OpenAI offers them: Flex (half of list, default where available; may answer 429), Standard (service_tier default), Fast (service_tier fast). The quote is an upper bound from max_tokens (default 1024). Payment is taken when the first token arrives, when the answer is complete, or after 30 s if the model is still reasoning; long reasoning can take minutes after that, so use stream:true or a long client timeout. Reasoning models: temperature must be 1. Model keys take a :level suffix for reasoning_effort (levels in /x402/v1/models); reasoning tokens are billed as output, so send max_tokens >= 128 or a low level for short answers. Sheet: https://openai.mm.family/x402/pricing. Each model also has its own endpoint: POST https://openai.mm.family/x402/v1/models/<key>/chat/completions (same body, model optional).
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa91238cf312440118f7dD59bA78232AcDB8Ea39b",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 900
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"payTo": "AxHVpeuSUcYwJaxkyAjGT1UvN5sHu4ZcSrW1fB1S5ZSn",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 900
}
],
"resource": {
"url": "https://openai.mm.family/x402/v1/chat/completions",
"tags": [
"openai",
"llm",
"chat-completions",
"flex",
"fast",
"base",
"solana"
],
"iconUrl": null,
"mimeType": "application/json",
"description": "gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI chat models (gpt-6, gpt-5.x, gpt-4.1, gpt-4o, o-series), paid per call in USDC. OpenAI token rates on Flex (half price, may answer 429; default where offered), Standard (service_tier default) or Fast (fast), plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. One endpoint per model: /x402/v1/models/<key>/chat/completions. Rates: https://openai.mm.family/x402/pricing",
"serviceName": "OpenAI gpt-6.1-sol and more"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"model": "gpt-6-sol",
"messages": [
{
"role": "user",
"content": "Hello"
}
],
"max_tokens": 128
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "chatcmpl-x",
"model": "gpt-6-sol",
"usage": {
"total_tokens": 9,
"prompt_tokens": 8,
"completion_tokens": 1
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Hello",
"refusal": null
},
"finish_reason": "stop"
}
],
"service_tier": "flex"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"model",
"messages"
],
"properties": {
"model": {
"enum": [
"chat-latest",
"gpt-4.1",
"gpt-4.1-mini",
"gpt-4.1-nano",
"gpt-4o",
"gpt-4o-mini",
"gpt-5",
"gpt-5-mini",
"gpt-5-nano",
"gpt-5.1",
"gpt-5.2",
"gpt-5.4",
"gpt-5.4-long",
"gpt-5.4-mini",
"gpt-5.4-nano",
"gpt-5.5",
"gpt-5.5-long",
"gpt-5.6-luna",
"gpt-5.6-luna-long",
"gpt-5.6-sol",
"gpt-5.6-sol-long",
"gpt-5.6-terra",
"gpt-5.6-terra-long",
"gpt-6-astra",
"gpt-6-astra-long",
"gpt-6-luna",
"gpt-6-luna-long",
"gpt-6-sol",
"gpt-6-sol-long",
"gpt-6.1-sol",
"gpt-6.1-sol-long",
"o1",
"o3",
"o3-mini",
"o4-mini"
],
"type": "string"
},
"tools": {
"type": "array"
},
"stream": {
"type": "boolean"
},
"messages": {
"type": "array",
"items": {
"type": "object",
"required": [
"role",
"content"
],
"properties": {
"role": {
"type": "string"
},
"content": {
"type": "string"
}
}
}
},
"max_tokens": {
"type": "integer"
},
"service_tier": {
"enum": [
"flex",
"default",
"standard",
"auto",
"fast",
"priority"
],
"type": "string"
},
"response_format": {
"type": "object"
},
"reasoning_effort": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.002505 USDC on Base to 0xa912…Ea39b. The signed payment is good for 15 minutes.
- Paid to
- 0xa912…Ea39b
- USD Coin contract
- 0x8335…02913
- Payment window
- 15 minutes
- As published
- 2505 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa91238cf312440118f7dD59bA78232AcDB8Ea39b",
"amount": "2505",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 900
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"model": "gpt-6-sol",
"messages": [
{
"role": "user",
"content": "Hello"
}
],
"max_tokens": 128
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "chatcmpl-x",
"model": "gpt-6-sol",
"usage": {
"total_tokens": 9,
"prompt_tokens": 8,
"completion_tokens": 1
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Hello",
"refusal": null
},
"finish_reason": "stop"
}
],
"service_tier": "flex"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"model",
"messages"
],
"properties": {
"model": {
"enum": [
"chat-latest",
"gpt-4.1",
"gpt-4.1-mini",
"gpt-4.1-nano",
"gpt-4o",
"gpt-4o-mini",
"gpt-5",
"gpt-5-mini",
"gpt-5-nano",
"gpt-5.1",
"gpt-5.2",
"gpt-5.4",
"gpt-5.4-long",
"gpt-5.4-mini",
"gpt-5.4-nano",
"gpt-5.5",
"gpt-5.5-long",
"gpt-5.6-luna",
"gpt-5.6-luna-long",
"gpt-5.6-sol",
"gpt-5.6-sol-long",
"gpt-5.6-terra",
"gpt-5.6-terra-long",
"gpt-6-astra",
"gpt-6-astra-long",
"gpt-6-luna",
"gpt-6-luna-long",
"gpt-6-sol",
"gpt-6-sol-long",
"gpt-6.1-sol",
"gpt-6.1-sol-long",
"o1",
"o3",
"o3-mini",
"o4-mini"
],
"type": "string"
},
"tools": {
"type": "array"
},
"stream": {
"type": "boolean"
},
"messages": {
"type": "array",
"items": {
"type": "object",
"required": [
"role",
"content"
],
"properties": {
"role": {
"type": "string"
},
"content": {
"type": "string"
}
}
}
},
"max_tokens": {
"type": "integer"
},
"service_tier": {
"enum": [
"flex",
"default",
"standard",
"auto",
"fast",
"priority"
],
"type": "string"
},
"response_format": {
"type": "object"
},
"reasoning_effort": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-01 16:32Z
- Last indexed by Roundhouse
- 2026-10-15 21:45Z
- Last enriched (probe, favicon, geo)
- 2026-10-01 21:15Z
- x402 version
- 2
- Max timeout
- 900s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service OpenAI gpt-6.1-sol and more and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=OpenAI%20gpt-6.1-sol%20and%20more' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://openai.mm.family/x402/v1/chat/completions, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.