Nouto

An open-source REST client for VS Code. Send requests, organize collections, chain responses, and test APIs without leaving your editor.

"Nouto" is Finnish for "fetch" or "pick up."

Features

HTTP Requests

Send requests using any standard method (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS) or define your own. Requests support query parameters, headers, and path parameters with auto-completion, plus multiple body types including JSON, XML, form-data, x-www-form-urlencoded, binary, and GraphQL.

Authentication options: Basic, Bearer, API Key, OAuth 2.0 (PKCE), AWS Signature v4, NTLM, and Digest.

Collections

Organize saved requests into collections with unlimited folder nesting. Drag-and-drop reordering and multi-select are supported. Collections can define their own variables, headers, auth, and scripts that child requests inherit.

Importing from other clients is straightforward: Postman, Insomnia, Thunder Client, Hoppscotch, Bruno, HAR files, and cURL commands are all supported.

Environment Variables

Use {{variableName}} substitution anywhere in URLs, headers, params, and request bodies. Variables can be scoped globally, per environment, or per collection.

Built-in dynamic variables generate values on the fly:

• {{$uuid.v4}} - random UUID
• {{$timestamp.unix}} - current Unix timestamp
• {{$random.int, 0, 100}} - random integer in range

Chain responses across requests with {{$response.body.token}} to pass data from one request to the next. Secrets can be stored securely and kept separate from regular variables.

Real-time Protocols

• GraphQL: schema introspection, variables, and operation selection
• GraphQL subscriptions: over WebSocket (graphql-ws protocol)
• WebSocket: send/receive messages, binary support, auto-reconnect
• Server-Sent Events: live event streams with filtering
• gRPC: server reflection, proto file loading, unary calls

Testing and Automation

Write assertions against status codes, headers, response body, and JSONPath expressions. Pre-request and post-response scripts run JavaScript with access to nt.sendRequest(), nt.setVariable(), and nt.test().

The collection runner executes all requests in a collection with configurable iterations and stop-on-failure. The benchmarking tool measures endpoint performance with statistical breakdowns.

Developer Tools

• Response viewer with syntax highlighting, search, and word wrap
• Side-by-side response diff
• Code generation for 12+ languages (cURL, Python, JavaScript, TypeScript, C#, Go, Java, PHP, PowerShell, Swift, Dart, Ruby)
• Command palette with fuzzy search and frecency-based ranking
• Request history with search, filtering, and CSV/JSON export
• Cookie jar with domain grouping
• Mock server with configurable routes and latency simulation
• Customizable keyboard shortcuts

Configuration

• SSL/TLS with custom CA and client certificates
• Proxy support (HTTP, HTTPS, SOCKS5) with authentication
• Git-friendly storage mode (one file per request)
• Configurable timeouts and redirect behavior

Installation

Search for Nouto in the VS Code Extensions view, or run:

code --install-extension Frostybee.nouto

Keyboard Shortcuts

All shortcuts are customizable in Settings.

Desktop App

Nouto also ships as a standalone desktop app built with Tauri 2.0, running natively on Windows, macOS, and Linux.

License

MIT