Netraptor

Crawl your web app and document its real API: Postman, HAR and OpenAPI from live traffic.

Netraptor adds a panel to Chrome DevTools that records the API calls your web app makes and turns them into something you can use: a map of endpoints, a collection your team can import, or a spec. It is built for developers, QA engineers and security engineers working on apps they build, test or are authorised to test. WHAT IT DOES • Records fetch and XHR requests for the sites you turn on, including their subdomains. It keeps going across page loads, with or without DevTools open. • Crawls same-site pages in your own logged-in tab, so you capture calls from pages you would not click by hand. Links that look like logout or delete actions are skipped. Form filling is opt-in per site and never touches payment or password fields. • Groups calls into endpoints such as /orders/{id}, with a separate view for GraphQL operations. • Shows each request the way the Network panel does: headers, payload, preview and response. • Flags token problems in one click: expired JWTs, tokens sent in the URL, alg "none", missing expiry and permissive CORS. Tokens are decoded on your device. • Filters with Chrome-style syntax such as method:POST or status-code:4xx, plus header and claim filters, and a rule builder you can test against a saved session. EXPORT Free: Postman collection, HAR file and cURL commands. Pro: OpenAPI 3.1 specification and collections for other API clients. Auth headers and cookies are stripped by default. FOR AI CODING AGENTS (PRO) • A local, read-only MCP server lets your coding agent look up captured endpoints and real responses. It runs only on your computer. • Agent Tools generates WebMCP tool definitions for your own site from the traffic you captured. PRIVACY Captured traffic is stored in your browser and is never uploaded. Recording is off until you turn it on for a site, and you can pause or stop it at any time. Activating Pro sends your licence key to our payment provider, Dodo Payments. Privacy policy: https://netraptor.dev/privacy PRICING Free plan, forever: use it on any site you choose, crawl 25 pages per run and keep your last 3 sessions. Pro is a one-time payment of $29.99: crawl up to 1000 pages, keep every session, and get spec exports, saved rules and agent tools. Guides: https://netraptor.dev/guides