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- product Bruno MIT open-source API IDE. Collections live as files in git — a local Postman alternative with no cloud workspace required.
- repository gosearch GoSearch is an open-source Go OSINT tool that searches a username's digital footprint across 305 websites using concurrency, and queries breach databases including HudsonRock, ProxyNova, and BreachDirectory (with an API key). It color-codes uncertain results to help filter false positives.
- repository harnessrouter HarnessRouter Community Edition: the self-hosted, Apache-2.0 edition of the unified interface for agent harnesses. Run Codex, Claude Code, Hermes, PI, DSH, and more through one API, with sessions, streaming, files, cancellation, and failure handling. Implements the Unified Harness Protocol (UHP), an open standard. Your keys, your infrastructure.
- product Hoppscotch MIT open-source API development ecosystem: web, desktop, CLI, and self-host. A Postman-shaped client you run.
- product Mailpit MIT email and SMTP testing tool with a web UI and an API. A catch inbox you host — not a Mailtrap seat. MailHog is unmaintained.