# ZeroReader Mistral Small 3.1 24B Chat

> ZeroReader Mistral Small 3.1 24B Chat is a paid API for AI agents from api.zeroreader.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).

Runs chat completions using Mistral Small 3.1 24B, a strong mid-size European LLM, via a pay-per-call x402 API

## Facts

- Endpoint: POST https://api.zeroreader.com/v1/ai/mistral-24b?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/zeroreader-mistral-small-3-1-24b-chat-7db998cc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dcMbp3Yc1LNmK_vI29uj4

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability zeroreader-mistral-small-3-1-24b-chat-7db998cc -d '<json body>'
```

Example prompt: Ask the Mistral Small 3.1 24B model on ZeroReader to explain the difference between supervised and unsupervised learning in plain English — use a temperature of 0.5 and keep the response under 300 tokens.

## When to prefer this

Choose this endpoint when you need a reliable, mid-size European-origin LLM (24B parameters) at a low per-call cost with no subscription, especially for structured output, multilingual tasks, or when Mistral's license/origin matters. Prefer over larger models when latency and cost are priorities over maximum capability.

## Known failure modes

- Payment failure if x402 USDC balance is insufficient — returns 402 Payment Required
- Invalid message format (missing role or content) — returns 400 Bad Request
- max_tokens exceeds 4096 — returns 400 validation error
- temperature out of range 0–2 — returns 400 validation error
- Model overload or upstream timeout — may return 503 Service Unavailable

## How this service works

Mistral Small 3.1 24B — Strong mid-size European model.

## Output

Returns an OpenAI-compatible chat completion object containing the assistant's generated message text, finish reason (e.g. 'stop'), and a completion ID. Streaming is optionally supported.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "stream": {
   "type": "boolean",
   "default": false
  },
  "messages": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "role",
     "content"
    ],
    "properties": {
     "role": {
      "enum": [
       "system",
       "user",
       "assistant"
      ],
      "type": "string"
     },
     "content": {
      "type": "string"
     }
    }
   }
  },
  "max_tokens": {
   "type": "integer",
   "default": 1024,
   "maximum": 4096
  },
  "temperature": {
   "type": "number",
   "default": 0.7,
   "maximum": 2,
   "minimum": 0
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "id": "chatcmpl-example",
 "object": "chat.completion",
 "choices": [
  {
   "index": 0,
   "message": {
    "role": "assistant",
    "content": "I'm doing well!"
   },
   "finish_reason": "stop"
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/zeroreader-mistral-small-3-1-24b-chat-7db998cc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.zeroreader.com](https://www.zero.xyz/host/api.zeroreader.com/llms.txt)