Mistral Large 4 API (mistral/mistral-large-4)
Mistral Large 4 API (mistral/mistral-large-4): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Mistral Large 4 on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
1352 msmedian answer time
$0.0023listed price per call
$0.0023price 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://agent402-arb.rosariovitale0096.workers.dev/llm/mistral-large-4
| Category | Market data |
|---|---|
| Provider host | agent402-arb.rosariovitale0096.workers.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.0023 | 1352 ms |
Example input (from the provider)
{
"body": {
"max_tokens": 12,
"messages": [
{
"content": "Reply with OK",
"role": "user"
}
],
"model": "mistral/mistral-large-4",
"stream": false
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"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": "Optional: fixed by the route (mistral/mistral-large-4)",
"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": [
"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"
}