Sidequest

Tools built for AI agents.

Sidequest Explorers is building a suite of products that give AI agents the things they need to get real work done: private test inboxes, a live feed of upstream changes, and more on the way.

See the products

The suite

One quest at a time.

Live

Proxy Mail QA

proxymail.qa

Private, disposable test inboxes for builders, testers and AI agents. Sign up, get the code or link the moment it arrives, and check password resets and invites too.

  • Verification codes and magic links pulled out of every email
  • MCP server for Claude Code, Cursor, Codex and more
  • npm package, Python helper and REST API for your test suite
  • Free plan, no credit card
Try it free
Live

Changelog Observer

changelog.observer

Watches the changelogs, releases, security advisories and status pages of the services your software depends on, and tells you what the vendor actually said.

  • Status pages, GitHub releases, RSS changelogs, OSV advisories and vendor email in one stream
  • Your coding agent maps your dependencies and sets it up through the API or MCP server
  • Urgent incidents by email and signed webhook, everything else in a daily digest
  • Free up to 20 dependencies
Try it free

Why "Sidequest"?

Every builder knows the main quest gets stalled by side quests: the inbox you can't open, the changelog nobody read. We build the tools that clear those side quests, for people and for the agents working alongside them.