The REST client built for testing
Swagger imports, scripts, SQL, sequences, and CLI support — all inside VS Code.
Import your API, build readable test flows, and run the same files in VS Code or CI.
Pull in endpoints, generate schemas, and keep coverage tied to the same API definition.
swagger "https://petstore.swagger.io/v2/swagger.json"
endpoints
GetPetById: GET {{baseUrl}}/pet/{petId}
PlaceOrder: POST {{baseUrl}}/store/order
end endpointsRun requests, bash or JS helpers, and .nornsql checks in one readable sequence.
sequence VerifyOrderFlow
run bash ./scripts/seed-db.sh
var data = run js ./scripts/sign.js {{payload}}
var row = run sql FindOrder(data.id)
end sequenceDebug with CodeLens and Test Explorer, then run the same files in local scripts and CI.
norn tests/ --env prelive
norn tests/ --junit results/junit.xmlContracts and coverage stay connected through the same flow.
Write expressive API tests that are easy to read and maintain
test sequence UserWorkflow # Create a new user POST {{baseUrl}}/users { "name": "Alice", "email": "alice@example.com" } assert $1.status == 201 var userId = $1.body.id # Verify the user was created GET {{baseUrl}}/users/{{userId}} assert $2.body.name == "Alice"end sequence$1.status == 201 $2.body.name == "Alice" Powerful features for API testing, all inside VS Code
Chain multiple requests together with automatic response capture. Use $1, $2 to reference previous responses and build complex workflows.
Validate responses with powerful operators: equality, contains, regex, type checking, existence, and timing assertions.
Manage dev, staging, and production configs with .nornenv files. Switch environments instantly with a single click.
Run tests from the command line with JUnit and HTML reports. Perfect for automated pipelines and continuous testing.
Discover and run tests from VS Code's Testing sidebar. See colorful output with icons, status codes, and failure details.
Track Swagger/OpenAPI coverage with status bar indicator. See which endpoints and response codes are tested.
Organize your API and database testing with purpose-built file types that keep requests, SQL, environments, and reusable definitions cleanly separated.
HTTP requests, sequences, assertions, and test logic. This is where your tests live.
Reusable headers, endpoints, and Swagger imports. Define once, use everywhere.
Named queries and commands with built-in Postgres and SQL Server support, plus custom adapters when you need them.
Variables for dev, staging, prod. Switch contexts without changing tests.
Install Norn from the VS Code Marketplace and start testing APIs in minutes.