Fillout Webhook API

The Webhook API from Fillout — 2 operation(s) for webhook.

Operations 2

POST /webhook/create Create a webhook #
POST /webhook/delete Remove a webhook #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/fillout-webhook-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

fillout-webhook-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Fillout REST Forms Webhook API
  description: 'A REST API for managing forms, submissions, and webhooks in Fillout


    OpenAPI 3.1 spec mirrored from the public Fillout REST API specification at https://fillout.com/help/openapi.json.'
  version: 1.0.0
servers:
- url: https://api.fillout.com/v1/api
  description: Fillout REST API base URL
security:
- bearerAuth: []
tags:
- name: Webhook
paths:
  /webhook/create:
    post:
      summary: Create a webhook
      description: Creates a webhook for a given form
      operationId: createWebhook
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateWebhookRequest'
      responses:
        '200':
          description: Webhook created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreateWebhookResponse'
      tags:
      - Webhook
  /webhook/delete:
    post:
      summary: Remove a webhook
      description: Removes a webhook
      operationId: removeWebhook
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RemoveWebhookRequest'
      responses:
        '200':
          description: Webhook removed successfully
          content:
            application/json:
              schema:
                type: object
      tags:
      - Webhook
components:
  schemas:
    RemoveWebhookRequest:
      type: object
      properties:
        webhookId:
          type: string
          description: The ID of the webhook you received when you created it
      required:
      - webhookId
    CreateWebhookResponse:
      type: object
      properties:
        id:
          type: integer
          description: The webhook ID
      required:
      - id
    CreateWebhookRequest:
      type: object
      properties:
        formId:
          type: string
          description: The public identifier of the form for which you want to create a webhook
        url:
          type: string
          format: uri
          description: The endpoint where you'd like to listen for submissions
      required:
      - formId
      - url
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Enter your [Fillout API key](https://build.fillout.com/home/settings/developer). Format: Bearer <api_key>'