Data as of Sep 18, 2026 · Based on 3,315,446 AI responses across 10,525 prompts · See how Parse measures this
AgenticBoxes.email provides an API for AI agents to send and receive email, provisioning a dedicated inbox per service and enabling HTTP sending and webhook-based inbound delivery via a single signup that creates an account, a domain, and an API key. It starts with 250 free messages and charges $0.40 per 1,000 messages thereafter, with no credit card required to start and no storage charges for recently deleted messages. The platform also ships ready-made agent skills (Claude, Hermes, OpenClaw) and SKILL.md guidance so agents can use the API without writing calls themselves.
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