Best Email & messaging
2 products in Email & messaging that have a free tier, have an API and offer an MCP server, out of 13 in the category. Listed in ranking order and compared on pricing, free tier, API, MCP server, SDK and open source. 2 of 2 have a free tier, 2 of 2 have an API, 2 of 2 offer an MCP server.
- Slack
AI work platform and productivity tools
- Chanty
Team communication and collaboration software with chat, tasks, Kanban, audio & video calls, and AI agent support
Side by side
| # | Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|---|
| 1 | Slack | Freemium | yes | yes | yes | yes | no |
| 2 | Chanty | Freemium · from $3 per user/month (Business, billed annually); free plan available | yes | yes | yes | — | no |
Ranked by verification, completeness, extraction confidence and method (AI model or heuristic fallback), and API/MCP support; ties go to the newest listing. Paid plans aren't an input to the ranking. Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted.
All 13 products in Email & messaging →
API
curl 'https://toolgrep.com/api/products?category=messaging&has_free_tier=1&has_api=1&has_mcp=1'