# GadgetHumans API Hub — Metadata Lookup

> GadgetHumans API Hub — Metadata Lookup is a paid API for AI agents from api.gadgethumans.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-10).

Retrieves metadata for a given URL using the GadgetHumans multi-tool API hub

## Facts

- Endpoint: GET https://api.gadgethumans.com/metadata?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gadgethumans-api-hub-metadata-lookup-b018cfd9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yGdkrf1YHSjXh68Yd-Jot

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 gadgethumans-api-hub-metadata-lookup-b018cfd9
```

Example prompt: Can you fetch the metadata for https://example.com using the GadgetHumans API hub so I can see what's exposed at that URL?

## When to prefer this

Choose this endpoint when you need to programmatically retrieve metadata for a specific URL via the GadgetHumans hub, especially in agentic workflows that need to introspect APIs, pages, or tools without manually browsing them.

## Known failure modes

- Invalid or malformed URL returns an error response
- URL not reachable or non-existent may return a failure or empty metadata
- Rate limit exceeded on free tier
- Payment required (x402) if credit is exhausted

## How this service works

MCP server with 49 developer tools + 300+ REST APIs — agent memory, QR codes, passwords, AI text, finance, health, crypto, weather, and more. Free tier, no API key needed.

## Output

Returns a metadata object describing the resource at the given URL, likely including endpoint details, available tools, or page-level descriptors exposed by the GadgetHumans API hub.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "Parameter: url"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "ok": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gadgethumans-api-hub-metadata-lookup-b018cfd9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.gadgethumans.com](https://www.zero.xyz/host/api.gadgethumans.com/llms.txt)