Last updated 07-23-2026
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Keploy
Keploy turns real application traffic into API tests, dependency mocks, and production-like sandboxes. It captures incoming requests and outgoing dependency calls using eBPF and network-level interception without requiring code changes, then converts that behavior into editable YAML tests you can replay locally, in CI, or on Kubernetes.
The platform generates high-signal test cases from traffic, OpenAPI specs, and application context, with deduplication, API chaining, smart assertions, and self-healing when APIs evolve. It also exposes tests and mocks over the Model Context Protocol so AI coding agents can verify changes against recorded production behavior before merge.
Keploy suits backend teams shipping microservices who need integration and regression coverage without hand-writing mocks for databases, queues, and external APIs. The open-source core runs under Apache 2.0, while cloud Playground, Pro, and Enterprise tiers add AI test generation, team collaboration, and staging or production traffic capture.
Records API and dependency calls via eBPF without modifying application code
Generates editable YAML tests and mocks from live traffic, OpenAPI, or Postman collections
Replays tests locally, in CI/CD pipelines, or Kubernetes clusters with deterministic mocks
Auto-chains requests, deduplicates suites, and self-heals tests when APIs change
Exposes tests and sandboxes over MCP for AI coding agents like Cursor and Claude Code
Generates tests and mocks from real traffic without code changes
Open-source core with 18.3K+ GitHub stars and Apache 2.0 license
Supports databases, queues, gRPC, GraphQL, and HTTP dependencies
MCP integration lets AI coding agents verify changes before merge
SOC 2, ISO, GDPR, and HIPAA compliance on enterprise tier
Advanced staging and production capture requires Enterprise tier
Pro plan usage overages add cost beyond the $19 per user base
Best suited for backend API teams, not front-end-only workflows
Is Keploy free to use?
Yes. Keploy's open-source record-and-replay platform is free under Apache 2.0. The cloud Playground tier is also free forever with 30 test suite generations and 100 test runs per month. Pro starts at $19 per user per month with additional usage.
Does Keploy require code changes?
No. Keploy captures incoming requests and outgoing dependency calls using eBPF and network-level interception. You run your application normally, and Keploy converts the captured behavior into tests and mocks.
How is Keploy different from Postman?
Postman is built for designing and manually testing API requests. Keploy generates tests and dependency mocks automatically from real application behavior, including calls to databases, queues, caches, and external APIs.
Can Keploy verify AI-generated code?
Yes. Keploy exposes tests, mocks, and sandboxes over the Model Context Protocol so coding agents can replay recorded traffic against code changes before merge. Tests run locally or in CI to catch regressions.
Does Keploy support Kubernetes?
Yes. The open-source core supports local recording on macOS, Windows, Linux, and Docker. Enterprise adds recording from Kubernetes, staging, and production environments with governance, RBAC, and audit logs.