2026-04-01

agentsbase vs AgentMail: AI Agent Email Comparison [2026]

comparisonemail api

Overview

When building AI agents that need email capabilities, choosing the right email infrastructure matters. Both agentsbase and AgentMail aim to solve the same problem: giving AI agents their own email addresses. But they take different approaches.

Pricing Comparison

agentsbase starts with a free tier that includes 3 mailboxes, 500 sends, and 1,000 receives per month — no credit card required. The Pro plan at $9.99/month unlocks 15 mailboxes and 5,000 sends. The Plus tier offers 200 mailboxes and 100,000 sends for high-volume use cases.

AgentMail offers a free tier as well but with more limited quotas. Their paid plans start higher for comparable volumes.

Verification Code Extraction

This is where agentsbase really stands out. The /api/code endpoint automatically extracts 4-8 digit verification codes from incoming emails. It supports long-polling up to 55 seconds, meaning your agent can register on a service, then simply wait for the code to arrive — no manual parsing needed.

Integration Options

agentsbase offers four ways to integrate:

REST API — 50+ endpoints for full email management
TypeScript SDK — npm package for programmatic access
CLI — command-line tool for shell scripts
MCP Server — native Claude Code / Cursor integration via npx agentsbase-mcp

Setup Time

With agentsbase, your agent can have a working email address in under 30 seconds. No DNS configuration, no domain verification. Just create an API key, register a mailbox, and start sending.

Bottom Line

If you need a simple, fast way to give your AI agent email capabilities with built-in verification code extraction and MCP support, agentsbase is the clear choice. The free tier is generous enough for most use cases, and scaling is straightforward.

Frequently Asked Questions

Which AI agent email service has a better free tier?

agentsbase offers a generous free tier with 3 mailboxes, 500 sends, and 1,000 receives per month. This is enough for most development and testing workflows without any credit card required.

Which service supports verification code extraction?

agentsbase has built-in verification code extraction that automatically detects 4-8 digit codes from email subjects and bodies. The /api/code endpoint supports long-polling up to 55 seconds, so your agent can wait for codes without manual polling.

Can I migrate from AgentMail to agentsbase?

Yes. agentsbase uses a simple REST API. You can create new mailboxes, update your agent configuration to point to agentsbase endpoints, and start receiving emails immediately. No DNS setup required.