# AIsa Resource Marketplace

> AIsa Resource Marketplace is a free API for AI agents from aisa.one, Free, status unknown (last checked 2026-10-11).

Aggregates and provides access to AI resources including LLMs and data APIs via the HTTP 402 payment standard

## Facts

- Endpoint: POST https://aisa.one?utm_source=zero.xyz
- Price: Free
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aisa-5b58fab8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZWM424Qb3WS8DzZGK8xi5

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 aisa-5b58fab8 -d '<json body>'
```

Example prompt: Can you look up and call an available LLM or data API from the AIsa marketplace using the x402 payment standard — I want to retrieve a result from one of their aggregated AI resources?

## When to prefer this

Choose this endpoint when you need a single aggregated access point for multiple LLMs and data APIs that support the HTTP 402 x402 micropayment standard, particularly when building Coinbase-ecosystem or crypto-native agent workflows that pay per call in USDC.

## Known failure modes

- Payment not authorized — 402 payment required error if USDC balance is insufficient
- Resource not found — requested LLM or data API not available in the marketplace
- Invalid resource identifier — unrecognized model or API name
- x402 protocol misconfiguration — payment header malformed or missing
- Service unavailable — marketplace aggregator is temporarily down

## How this service works

A resource marketplace aggregating core assets such as LLMs, data APIs based on the HTTP 402 standard.

## Output

The agent receives a response from the requested AI resource (LLM output or data API result) accessed through the AIsa marketplace, routed via the HTTP 402 x402 payment protocol.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aisa-5b58fab8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aisa.one](https://www.zero.xyz/host/aisa.one/llms.txt)