# Fontsource font catalogue

Browse the Fontsource catalogue of more than 2,000 open source fonts (Google Fonts and others), filtered by family, category, subset, weight or style: id. Takes family, category, subsets and more, all optional.

Browse the Fontsource catalogue of more than 2,000 open source fonts (Google Fonts and others), filtered by family, category, subset, weight or style: id, family, subsets, weights, styles, variable flag, category, licence (mostly OFL), last update. Broad filters return long lists (the output keeps the first fonts). Use fontsource/font for one font's details.

- Tool ID: `fontsource/fonts`
- Provider: [Fontsource](/providers/fontsource.md)
- Capability: [Knowledge & research](/tools/knowledge.md)
- Price: no charge per call
- Authentication: an authorised Agentik workspace is required for execution, including zero-price tools.

## Pricing contract

No charge per call. A workspace is still needed so your agent can call it.


```json
{
  "model": "per_call",
  "amountUsd": 0
}
```

## Complete input schema


```json
{
  "type": "object",
  "properties": {
    "family": {
      "type": "string",
      "minLength": 2,
      "maxLength": 80,
      "description": "Exact family name, e.g. 'Inter'"
    },
    "category": {
      "type": "string",
      "enum": [
        "sans-serif",
        "serif",
        "display",
        "handwriting",
        "monospace",
        "icons",
        "other"
      ],
      "description": "Font category, e.g. 'serif'"
    },
    "subsets": {
      "type": "string",
      "pattern": "^[a-z0-9-]{2,40}$",
      "description": "Character subset the font must cover, e.g. 'latin-ext'"
    },
    "weights": {
      "type": "integer",
      "enum": [
        100,
        200,
        300,
        400,
        500,
        600,
        700,
        800,
        900
      ],
      "description": "Weight the font must have, e.g. 700"
    },
    "styles": {
      "type": "string",
      "enum": [
        "normal",
        "italic"
      ],
      "description": "Style the font must have, e.g. 'italic'"
    },
    "type": {
      "type": "string",
      "enum": [
        "google",
        "other"
      ],
      "description": "Origin: Google Fonts or other open source, e.g. 'other'"
    }
  },
  "additionalProperties": false
}
```

## Published example

This is the provider tool’s published example. Replace example values with the user’s requested inputs, respecting the schema; do not execute an example merely to test a connection.


```json
{
  "tool_id": "fontsource/fonts",
  "input": {
    "category": "monospace",
    "subsets": "latin-ext",
    "styles": "italic"
  }
}
```

## Execute and retrieve

Inspect again before execution, explain the price and obtain the required authority. Use MCP run_tool or POST /v1/run with this tool ID, valid input and an idempotency key. Save the returned run ID and follow the actual state. If Agentik answers that the tool is temporarily unavailable, do not retry it blindly; use discovery to propose an alternative.

A partial or uncertain result can still have consumed provider resources. Consult [billing](/docs/billing.md), [idempotency](/docs/idempotency.md) and [asynchronous results](/docs/async.md).

Licence: Fontsource public API; each font under its own licence, mostly SIL Open Font License 1.1.

[Provider documentation](https://fontsource.org/docs/api/fonts)

[REST inspection](https://api.agentik.cc/v1/tools/fontsource/fonts) · [OpenAPI](/openapi.json) · [Connection guide](/connect.md)

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[HTML page](/providers/fontsource/fonts) · [Agent index](/llms.txt)