One binary. Seven protocols. Zero dependencies.
Mock HTTP, gRPC, GraphQL, WebSocket, MQTT, SSE, and SOAP from a single CLI tool.
Import OpenAPI specs. Build digital twins. Let AI agents create mocks for you.
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Quick Start
# Install
curl -sSL https://get.mockd.io | sh
# Start + create a stateful CRUD API in one command
mockd start
mockd add http --path /api/users --stateful users
# It works immediately
curl -X POST localhost:4280/api/users -d '{"name":"Alice","email":"alice@test.com"}'
# → {"id":"a1b2c3","name":"Alice","email":"alice@test.com"}
curl localhost:4280/api/users
# → {"data":[{"id":"a1b2c3","name":"Alice","email":"alice@test.com"}],"meta":{"total":1}}More install options
brew install getmockd/tap/mockd # Homebrew
docker run -p 4280:4280 -p 4290:4290 ghcr.io/getmockd/mockd:latest # Docker
go install github.com/getmockd/mockd/cmd/mockd@latest # Go
