Automate Onboarding
Generate personalized forms for each new hire from your HR system.
✦ Developer API
Build forms, signatures, and AI-agent workflows programmatically.
Full REST API, hosted MCP server, and OpenAPI spec. Create forms, manage questions, generate recipient links, and trigger webhooks from your code or your AI client.
A few lines of code. That is all it takes.
Create forms, add questions, and generate shareable links — all from your codebase.
/api/v1/forms
const response = await fetch("https://www.formalingo.com/api/v1/forms", {
method: "POST",
headers: {
"Authorization": "Bearer fl_key_...",
"Content-Type": "application/json",
},
body: JSON.stringify({
title: "Customer Feedback",
status: "draft",
}),
})
const form = await response.json()
// { id: "frm_a1b2c3", title: "Customer Feedback", ... }Everything you need to build on Formalingo.
REST API
Full REST API
Create forms, add questions and sections, manage recipients, handle documents and signatures. Every feature in the dashboard is available via API.
OpenAPI
OpenAPI specification
Auto-generated OpenAPI spec at /api/v1/. Import into Postman, generate client libraries, or browse interactive documentation.
API Keys
Scoped API keys
Generate API keys with granular permissions: read:forms, write:forms, read:submissions, webhooks, and more. Set expiration dates for security.
MCP
Hosted MCP for AI clients
Connect Codex, Claude, Cursor, or any MCP-compatible assistant to curated Formalingo tools using API-key or OAuth bearer auth.
Webhooks
Webhook events
Subscribe to form submissions, document signings, and more. HMAC-signed payloads for security. Delivery log for debugging.
API for every use case
From onboarding automation to embedded forms, data sync, and AI-agent assistance — if you can code it or connect an MCP client, you can build it.
Embed in Apps
Create forms on-the-fly and embed them in your product.
Sync Data
Use webhooks to push form responses to your CRM, database, or data warehouse.
Custom Workflows
Chain API calls with conditional logic to build complex automation pipelines.
Agent-Assisted Ops
Let AI clients draft forms, inspect document workflows, and manage recipients through MCP tools.
Common questions
Everything you need to know about the Formalingo developer API.
Still have questions? Chat with our team
Explore more solutions
See what else Formalingo can do for your team.
Your forms,
your code.
Full REST API, hosted MCP, and OpenAPI spec. Free during pilot.