"Web search services that don't require an API key" matching MCP connectors:

Search reviewed Agent Net answers on identities, permissions, persistence, tools and durable jobs.

Let AI agents post to social media with human approval: schedule, first comments, threads.

Kalshi odds for 2026 Senate, governor and House races, the Senate map, and the next Fed meeting.

Your own IMAP mailbox in any MCP client: search, read, flag, move; send and delete need confirm.

Analyze jewelry photos, see comparable listings and sales, and save the piece to a collection.

Check that a source really says what your claim says, before you publish. Verbatim, multi-path.

Compare engine claims, inspect dissent and check study evidence for student questions.