Temp Mail Agency vs Temp-Mail.io

Temp-Mail.io is a long-running temporary email service that recently added an MCP server — but put it behind its Premium subscription. Temp Mail Agency's MCP server is free for everyone: one Google sign-in for a key, 100 emails/day, no subscription. If you are connecting an AI agent to disposable email, that difference decides it.

Temp Mail AgencyTemp-Mail.io
PriceFree — 100 emails/day per key, no plans, no cardFree website tier; Premium from $2.99/mo unlocks extras — including MCP
MCP serverYes — free, API-key authenticatedYes — but Premium-only, behind an account and subscription
Signup / API keyFree API key — one-click sign in with GoogleAccount required for Premium/MCP features
Verification codesBuilt-in tool: get_verification_code, plus links extracted from every messageRead messages through its MCP/API tools
Inbox privacyPrivate — reading needs the inbox_id token issued at creationAccount-based inboxes on Premium
Best atFree agent inboxes with zero setupTemp mail with premium human-facing extras

Choose Temp Mail Agency if…

…you want an AI agent connected to disposable email in the next minute, for free: no subscription — just a one-click Google sign-in for your key, then the endpoint URL in your MCP client.

Choose Temp-Mail.io if…

…you already pay for Temp-Mail.io Premium for its other features and want its MCP tools inside the same account.

FAQ

Is Temp-Mail.io's MCP server free?

No. Temp-Mail.io documents its MCP server as a Premium feature, with Premium starting at $2.99/mo. Temp Mail Agency's MCP server is free; you sign in with Google for a key.

Do both services offer temporary email on the web?

Yes — both run free web-based temporary email generators. The difference is the agent layer: pricing, authentication and tooling around the MCP endpoint.

More comparisons

See also the free MCP server and the developer API.