# Fontsource Font Metadata

> Fontsource Font Metadata is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns metadata (weights, subsets, license) for a specific open-source font by ID from the Fontsource library.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/fontsource-font-metadata
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fontsource-font-metadata-71d21533
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CW5ewSUf3X48K_ihm0Atv

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 fontsource-font-metadata-71d21533 -d '<json body>'
```

Example prompt: Can you pull up the Fontsource metadata for the font with ID 'inter' — I need to know what weights and subsets it supports and what license it uses?

## When to prefer this

Use this endpoint when you need structured metadata about a specific open-source font available on Fontsource, particularly to check available weights, subsets, or license terms before integrating it into a project. Prefer this over manual Fontsource website browsing when automating font selection or validation workflows.

## Known failure modes

- Invalid or unknown font ID returns an error or empty response
- Missing ?id= parameter causes a bad request error
- Font ID typo or case mismatch may return no results
- Network or upstream Fontsource API unavailability causes service errors

## How this service works

Metadata (weights, subsets, license) for an open-source font {id} on Fontsource. Query: ?id= Returns JSON.

## Output

A JSON object containing metadata for the requested font, including available weights, character subsets (e.g. latin, cyrillic), license information, and other Fontsource-specific font attributes.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fontsource-font-metadata-71d21533/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)