Skip to main content

API mocking and service virtualization

Create mock behavior, inspect HTTP traffic, simulate dependencies, and automate repeatable API environments.

Quickstart guides

Start with request inspection, mock rules, API contracts, or agent-assisted configuration.

Create a virtual server

Create an endpoint, send HTTP traffic, and inspect headers and payloads in real time.

Read the guide

Create a mock API

Match incoming requests and return the status, headers, body, and latency your test needs.

Read the guide

Start from an API contract

Import an API specification and get a working mock server without defining every route by hand.

Read the guide

Build with AI agents

Create behavior, inspect traffic, and manage state from an MCP-compatible development tool.

Read the guide

Capabilities

Browse documentation by the API capability your team needs.

Traffic inspection

Observe, debug, and redirect HTTP traffic without changing the service that sends it.

API mocking

Model realistic dependency behavior for development, functional testing, and failure testing.

Protocol support

Turn machine-readable contracts into usable endpoints across common API protocols.

Test suite integration

Use repeatable mock environments with Selenium, Playwright, Cypress, and CI/CD workflows.

API virtualization

Make unavailable, costly, or unstable dependencies predictable across the delivery lifecycle.

Governance

Apply access, governance, audit, and observability controls to shared mock environments.

OpenAPI workflows

Generate realistic responses from contracts, control their test data, and keep specifications aligned with observed traffic.

Intelligent mocks

Generate realistic, schema-compliant response data from field names, types, and descriptions.

Test data configuration

Review field mappings, replace generators, constrain ranges, and set stable values.

Contract drift detection

Compare observed API traffic with your OpenAPI baseline, then review and apply precise contract patches.

API development with Beeceptor MCP

Connect Beeceptor MCP so your coding agent can use codebase, API contract, domain, and organizational context to generate mocks, inspect traffic, inject faults, and manage state.

Set up Beeceptor MCP
codex mcp add beeceptor \ --url https://mcp.beeceptor.com/mcp
Manage rulesInspect requestsConfigure faultsManage state

Integration guides

Step-by-step examples for authentication, cloud services, resilience, and delivery workflows.

Test an OAuth 2.0 flow

Build a controlled authorization server for repeatable integration tests.

Mock the AWS S3 API

Exercise object storage integrations without an AWS dependency.

Validate retry logic

Return deliberate failures and verify backoff and recovery behavior.

Version mocks in CI/CD

Keep simulation behavior reviewable and reproducible with your test code.

For enterprises

Governance for shared API environments

Configure access, traceability, and observability for shared mock environments.

Organize teams with workspacesControl access with SAML SSOTrace changes with audit logsExport telemetry with OTLP