AI Skills & MCP

An AI skill is a self-contained markdown file that teaches AI coding assistants (Claude, Cursor, Copilot, etc.) everything they need to know about the Formalingo API — endpoints, schemas, authentication, SDKs, and common workflows.

Copy the skill below and paste it into your AI tool's context or project instructions. It is auto-generated from the same source of truth as our API reference, so it always stays current.

Hosted MCP

Formalingo also provides a hosted MCP endpoint for AI clients that support remote MCP. The MCP server exposes curated tools, resources, and prompts for forms and document signing. It calls the public /api/v1 API and accepts the same permission-scoped credentials: API keys (af_live_...) or OAuth access tokens (fl_at_...) in the Authorization: Bearer <token> header.

See Hosted MCP for setup instructions and local testing.

626 lines / 24,746 chars

---
name: formalingo-api
description: Complete Formalingo API and MCP reference for AI coding assistants — covers authentication, hosted MCP setup, all endpoints, request/response schemas, SDKs (TypeScript, Python, .NET, Go), and common workflows for form building and document signing.
---

# Formalingo API

Formalingo is an AI-powered form builder and document-signing platform. This skill provides everything an AI coding tool needs to integrate with the Formalingo REST API.

## Base URL

```
https://app.formalingo.com/api/v1
```

All endpoints are prefixed with `/api/v1`. Use HTTPS in production.

## Authentication

Include a Bearer token in the `Authorization` header:

```
Authorization: Bearer <API_KEY>
```

API keys are created in **Settings > API Keys**. Each key is permission-scoped to a workspace.

### Permissions

| Permission | Description |