AI Powered Mock API Server
From Your OpenAPI Spec

Get a ready-to-integrate mock server with dynamic, realistic responses - no code needed.

Powered by 300+ data generators to craft smart, lifelike responses.

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Sample OpenAPI Spec
GET
openapi: 3.0.0
info:
  title: Users API
  version: 1.0.0
paths:
  /v1/user:
    get:
      responses:
        '200':
          description: A user object
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                  username:
                    type: string
                  email:
                    type: string
                  country:
                    type: string
                  address:
                    type: object
                    properties:
                      street:
                        type: string
                      city:
                        type: string
                      state:
                        type: string
                      zip:
                        type: string
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Drop In Your
OpenAPI Spec

Upload your YAML/JSON spec to generate a contract-first mock environment — aligned with your design-first workflows.

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Launch an AI-Powered
Mock Server

Bring your API specification to life with realistic, schema-compliant responses powered by AI. Use it for early integrations, stakeholders, and cool demos.

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Simulate API Behaviors
Customize, Iterate

Model edge cases, simulate failures, and remove dependencies among team — all without touching real services.

Upload OpenAPI Specification

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or

file.yaml

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http://localhost:3000

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Explore API routes, monitor live traffic, and build overrides using mock rules from the dashboard page.

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The Smarter Way to Mock APIs

Got an OpenAPI spec? You’re already ahead.

Beeceptor uses AI-powered smart-contracts to instantly turn your OpenAPI spec into a live, integration-ready mock server, complete with realistic, golden test data. It’s not just mock responses, it’s production-grade simulation, built to unblock teams and accelerate development from day one.