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.
SearchLiveeip155:8453Exactvia cdp
LlmChat-completionsOpenai-compatibleClaudeGpt
Calls · 30d
9
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 14 snapshots so far.
$1.19
Verified settled volume
69 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0014
Listed price
As published in the catalog. Always read the live 402 before paying.
9
Calls · 30d
Upstream's own call count for this endpoint, not ours.
4
Unique payers · 30d
Last called 2026-10-19 12:44Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xf7eaf699C6E55887184809c57d597a64aB86d493The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.0014USDC≈ $0.0014 USD
on Base · exact scheme
Pay 0.0014 USDC on Base to 0xf7ea…6d493. The signed payment is good for 3 minutes.
- Paid to
- 0xf7ea…6d493
- USD Coin contract
- 0x8335…02913
- Payment window
- 3 minutes
- As published
- 1400 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront"
},
"payTo": "0xf7eaf699C6E55887184809c57d597a64aB86d493",
"amount": "1400",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 180
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"model": "deepseek/deepseek-chat",
"stream": false,
"messages": [
{
"role": "user",
"content": "Reply with OK"
}
],
"max_tokens": 12
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "chatcmpl-7f3c2a91",
"model": "deepseek/deepseek-chat",
"usage": {
"total_tokens": 10,
"prompt_tokens": 9,
"completion_tokens": 1
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "OK"
},
"finish_reason": "stop"
}
],
"created": 1791979200
}
}
},
"schema": {
"type": "object",
"$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": {
"type": "string",
"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"
],
"description": "Choose any current model; GET /v1/models for the live catalog."
},
"tools": {
"type": "array"
},
"stream": {
"type": "boolean",
"description": "true: server-sent events after payment"
},
"messages": {
"type": "array",
"items": {
"type": "object",
"required": [
"role"
],
"properties": {
"role": {
"enum": [
"system",
"user",
"assistant",
"tool",
"developer"
],
"type": "string"
},
"content": {
"type": [
"string",
"array",
"null"
]
}
}
},
"minItems": 1
},
"max_tokens": {
"type": "integer",
"maximum": 16384,
"minimum": 1,
"description": "Optional, default 4096"
},
"temperature": {
"type": "number",
"maximum": 2,
"minimum": 0
},
"response_format": {
"type": "object"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"queryParams": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"id",
"object",
"model",
"choices"
],
"properties": {
"id": {
"type": "string"
},
"model": {
"type": "string"
},
"usage": {
"type": "object"
},
"object": {
"const": "chat.completion"
},
"choices": {
"type": "array",
"items": {
"type": "object",
"required": [
"index",
"message",
"finish_reason"
]
}
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-19 12:44Z
- Last indexed by Roundhouse
- 2026-10-23 10:50Z
- Last enriched (probe, favicon, geo)
- 2026-10-14 02:46Z
- x402 version
- 2
- Max timeout
- 180s
- Liveness probe
- HTTP 404
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. 14 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 LLM Chat Completions API 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=LLM%20Chat%20Completions%20API' 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://agent402-arb.rosariovitale0096.workers.dev/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.