Email infrastructure for AI agents: send, read replies as threads, reply in context
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SendRaven Overview
SendRaven is email infrastructure for AI agents. Your agent sends an email, and when the person answers, the reply comes back as structured state: threaded on Message-ID, quoted history stripped, flagged as awaiting a reply, with the sender's authentication stated. The agent answers in the same thread, and a webhook wakes it when something new arrives. Because an autonomous sender is a different risk from a backend, limits live on the API key: a daily cap, a recipient allowlist, and a hold that turns every send into a draft for a person to approve. Works over REST or MCP (Claude, Cursor, ChatGPT and any MCP client). Priced per email sent, never per contact; 3,000 emails a month free.
How to evaluate SendRaven for email workflows
SendRaven is listed as a freemium email AI agent with api access. Use this page to compare its core capabilities, practical use cases, pricing model, and alternatives before adding it to your workflow.
A strong first-fit use case is Customer support agent that answers email in context, especially if your team is shortlisting email tools for a specific operational need.
Best-fit checks before choosing:
- Confirm that freemium pricing matches your expected usage volume.
- Compare SendRaven with similar email AI agents in the alternatives section.
- Validate the key capability: Send transactional email over REST or MCP.
SendRaven Key Features
Send transactional email over REST or MCP
Inbound replies as threads, quoted history stripped
List threads awaiting a reply and answer in the same thread
Per-key daily caps, recipient allowlists and human approval
Campaigns and automations that stop when someone replies
SendRaven Use Cases
Customer support agent that answers email in context
Follow-up agent that nudges until the recipient replies
Research agent that emails a question and resumes on the answer
Onboarding and transactional email for AI-native apps
Human-approved outreach drafted by an agent
Quick Facts
CategoryEmail
IndustryHorizontal
AccessAPI
Pricing
Freemium
StatusStandard
ListedSep 22, 2026
Popularity23%
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