# httpay.xyz Mistral AI API Gateway

> httpay.xyz Mistral AI API Gateway is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Proxies requests to the Mistral AI API through a pay-per-call gateway using x402 micropayments, enabling access without a Mistral API key

## Facts

- Endpoint: POST https://httpay.xyz/api/gateway/mistral/%7B*path%7D/*
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/httpay-xyz-b6bf9a1d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NNf7P4cWWXelpVakOrtAH

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 httpay-xyz-b6bf9a1d -d '<json body>'
```

Example prompt: Use the Mistral AI gateway to send a chat completion request to mistral-large-latest with the message: 'Explain quantum entanglement in two sentences.'

## When to prefer this

Use this endpoint when you need to call Mistral AI models without managing a Mistral API key, prefer pay-per-call micropayment billing over subscription, are building an agent that uses USDC/x402 for API access, or want to avoid committing to a Mistral plan for low-volume usage.

## Known failure modes

- Payment not included or invalid x402 payment header returns 402 Payment Required
- Invalid Mistral API path returns 404 or proxied error
- Mistral API rate limit exceeded returns 429 from upstream
- Malformed request body returns 400 from Mistral upstream
- Model not found or unsupported path returns proxied Mistral error

## How this service works

API Gateway: Mistral AI API

## Output

Returns the raw Mistral AI API response for the requested endpoint, including generated text, chat completions, embeddings, or other model outputs as returned by the underlying Mistral API — formatted identically to direct Mistral API responses.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/httpay-xyz-b6bf9a1d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from httpay.xyz](https://www.zero.xyz/host/httpay.xyz/llms.txt)