GraphQL Mocks with Real, Contextual Data!
AI-Generated GraphQL Mock Server, Ready in Few Seconds!
Beeceptor turns your GraphQL schema into a living mock server. Queries, mutations, and nested resolvers return realistic data that behaves like a real backend, not static placeholders. Built-in 300+ smart data generators.
type User {
id: ID!
username: String!
email: String!
country: String!
address: Address
}
type Address {
street: String!
city: String!
state: String!
zip: String!
}
type Query {
user(id: ID!): User
users: [User!]!
}How It Works
From schema to mock server in 3 simple steps
Upload Your Schema
Drop in your GraphQL SDL schema to spin up a contract-first mock environment.
Start Your Mock Server
Turn your GraphQL schema into an AI-powered server with realistic, schema-aware responses.
Query & Test
Run GraphQL queries, test mutations, and build GraphQL clients with realistic data.
You have a GraphQL schema, but your backend isn't ready?
Get an instant mock server in under a minute!
Beeceptor understands your schema, your field names, your types, your intent. It generates AI-curated mock data that looks right — so your frontend never breaks on nonsense.
Processing your GraphQL schema, please wait...
Your GraphQL Mock Server is Live!
http://localhost:3000The GraphQL mock server is ready with AI-generated, realistic data.
Run queries, explore the schema, and build GraphQL clients from the dashboard page.
Error
The Fastest Path From Schema to Reality
Your GraphQL schema already defines everything. Beeceptor just makes it real.
In seconds, turn your SDL into a fully functional GraphQL mock server powered by AI, delivering production-quality, schema-aware responses out of the box. No setup. No waiting. Just pure, frictionless development.
Schema-First Development
Stop building APIs backward.
With Beeceptor, start from your GraphQL schema — define types, queries, and mutations first, and test the client experience before writing a single resolver. Build clean, consistent APIs right from the start.
No Backend Dependency
Waiting on backend APIs slows everything down.
Beeceptor lets you upload your schema and get a working GraphQL endpoint instantly, so frontend teams can build, test, and iterate in parallel. Backend or not, your development doesn't stop.
Built-in Query Explorer
Debugging without a proper explorer is painful.
Beeceptor includes a full-featured GraphiQL interface to run queries, inspect types, and validate API design — with auto-completion and real-time schema validation built in.
AI-Generated Fake Data
Fake data shouldn't feel fake.
Beeceptor's AI, powered by GraphQL Faker, generates human-like test data — names, emails, prices, and even nested objects — perfectly matching your schema structure. Realistic, contextual, and ready for use.
Type-Safe Responses
Tired of runtime errors and mismatched data shapes?
Every Beeceptor mock response is 100% type-safe and schema-compliant — no null surprises, no broken queries, no debugging mock data again.
Test Mutations & Subscriptions
Don't stop at queries.
Beeceptor lets you test full GraphQL operations — mutations for data changes and subscriptions for real-time events — so you can simulate complete API behavior before a single backend service exists.
Start Free
Every great API starts small.
Try Beeceptor's GraphQL mock server for free — upload schemas up to 500KB and get a live endpoint you can share with teammates, demo clients, or plug into your CI pipeline. No credit card required.
Custom Resolvers
Every app has edge cases — your mocks should too.
With Beeceptor, override default responses using custom resolvers to simulate errors, latency, or conditional logic. Build realistic test cases that mirror real-world API behavior.
Auto Introspection
Exporting schemas shouldn't slow you down.
Just provide a live GraphQL endpoint, and Beeceptor automatically introspects and imports your schema — no manual downloads or exports required. Mock any live API instantly.