# MuseumPay API x402 Service Metadata

> MuseumPay API x402 Service Metadata is a paid API for AI agents from museum-production-b773.up.railway.app, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Returns x402 payment verification and service metadata for the MuseumPay API endpoint

## Facts

- Endpoint: GET https://museum-production-b773.up.railway.app/api
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/museumpay-api-x402-service-metadata-9976b091
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QbUNOIjErasGC-T0O_OGl

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 museumpay-api-x402-service-metadata-9976b091
```

Example prompt: Can you fetch the MuseumPay API service metadata to verify the x402 payment endpoint is configured correctly and see what capabilities it exposes?

## When to prefer this

Use this endpoint when you need to verify or discover the MuseumPay x402 API configuration, confirm that the service is live, or retrieve its metadata before integrating a museum-related payment workflow. It is a lightweight, read-only introspection call.

## Known failure modes

- Service unavailable on Railway deployment (503/502 if container is down)
- Payment not included or invalid x402 header returns 402 Payment Required
- Unexpected response format if API schema has changed
- Timeout if Railway cold-start delay is encountered

## How this service works

MuseumPay API x402 verification and service metadata endpoint.

## Output

Returns JSON service metadata describing the MuseumPay API, including x402 payment verification details, supported methods, endpoint configuration, and service identification information.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/museumpay-api-x402-service-metadata-9976b091/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from museum-production-b773.up.railway.app](https://www.zero.xyz/host/museum-production-b773.up.railway.app/llms.txt)