# MailBeast (mailbeast.ai)

Sends multi-step cold email sequences from many rotated sender accounts, warms up those senders, and collects all replies in one shared inbox.

- Atlas card: https://inite.ai/en/atlas/mailbeast.ai
- Site: https://mailbeast.ai
- For: Founders, agencies and sales teams running cold email outreach to local businesses
- Categories: sales
- Use 0/100 · alive 100/100

## Used for

- find local businesses with verified emails and phone numbers
- build multi-step email sequences with delays and A/B variants
- warm up new sender accounts before sending campaigns

## Price

- from 33 USD/month, no free plan (read 2026-10-21 on https://mailbeast.ai/pricing)

## For developers

- OpenAPI: https://developer.mailbeast.ai/openapi.json (36 paths)
- API docs: https://developer.mailbeast.ai
- MCP server: ai.mailbeast/mailbeast (namespace; auth on 2026-10-21)
- Read 2026-10-21

## MCP server, measured daily

Server: https://mcp.mailbeast.ai/mcp, checked every day since 2026-10-21 (13 checks).

- Answered: 100% of daily checks
- Median first answer: 287 ms
- Sign-in: OAuth (the client signs the user in)
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: gdpr, ccpa
- Training on your data: no (https://mailbeast.ai/privacy)
- Read 2026-10-21

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Source: INITE Atlas, https://inite.ai/en/atlas/mailbeast.ai. JSON: https://inite.ai/api/atlas/mailbeast.ai. MCP: https://inite.ai/api/mcp (atlas_lookup).