LLM Chat
LLM Chat: Chat with a language model. OpenAI-compatible /v1/chat/completions interface. Supports 50+ models. Free models (auto, eco, premium) are $0 — paid models (gpt-5.2, claude-opus-5, deepseek-v4-pro, ...) are charged at cost. See /tools/llm_chat/models for the full model list and rates. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/llm_chat.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
904 msmedian answer time
$0.05listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.freeq.one/tools/llm_chat
| Category | Everything else |
|---|---|
| Provider host | x402.freeq.one |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 5 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.002 | 904 ms |
Example input (from the provider)
{
"body": {
"max_tokens": {
"description": "Maximum tokens to generate (default 1024, max 4096). Lower values reduce cost for paid models.",
"type": "integer"
},
"messages": {
"description": "Conversation messages array",
"items": {
"properties": {
"content": {
"description": "Message text content",
"type": "string"
},
"role": {
"description": "Message role",
"enum": [
"system",
"user",
"assistant"
],
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"model": {
"description": "Model ID. Examples: auto/eco/premium (free, $0.002), openai/gpt-5.2, anthropic/claude-opus-5, google/gemini-3.1-pro, deepseek/deepseek-v4-pro. Short names accepted (gpt-5.2, claude-opus-5). See /tools for full list.",
"type": "string"
},
"temperature": {
"description": "Sampling temperature 0-2 (default 0.7)",
"type": "number"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"description": {
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"mcpServerUrl": {
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"toolName": {
"type": "string"
},
"transport": {
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}