Developer

API Documentation

Use the Twentybaan API to connect your account to internal tools, CRMs, and automation platforms like Zapier and Make.com.

Base URLs

Use the API subdomain (recommended).

Environment	Base URL	Notes
Production	https://api.twentybaan.com	Recommended base URL for integrations.

Download the OpenAPI spec: /openapi.yaml

Public endpoints are versioned under /v1/. We will add new versions as needed and keep older versions available during a deprecation period.

Create an API key and make your first request.

API keys, OAuth, and scopes.

Events, signatures, and delivery rules.

GET

Fetch the current authenticated user.

GET

List your listings or fetch by id.

GET

List contact messages or fetch by id.

GET

List your contracts or fetch by id.

GET

List your saved lists or fetch by id.

GET

List items in a saved list or fetch by id.

GET

List API keys (metadata only).

GET

List webhook endpoints and event filters.

GET

Inspect delivery attempts and failures.

GET

List supported webhook event names.