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Truelist MCP
Email validation for AI agents — hosted MCP, no keys
A hosted MCP server that gives Claude, Cursor, and Copilot real email superpowers: verify addresses, validate whole lists, create and query batches — in plain English. One URL, OAuth sign-in, no API keys to paste. Runs on the Truelist engine (1B+ emails validated).
Corey here, co-founder of Truelist.
Agents are writing more and more outreach — but they've been flying blind on whether the addresses they're writing to actually exist. So we gave them the missing tool.
The Truelist MCP server is hosted — nothing to install or run:
claude mcp add --transport http truelist https://api.truelist.io/mcp
First use opens a browser OAuth window. No API keys copied into config files, no tokens in dotfiles.
Once connected, your agent can handle the whole hygiene loop conversationally:
- "Is [email protected] actually deliverable?"
- "Validate these 30 addresses from my HubSpot export."
- "Create a batch called Q3 cleanup with this list."
- "Which of my recent batches has the most invalid emails?"
Works in Claude Desktop, Claude Code, Cursor, and VS Code/Copilot — anything that speaks MCP over HTTP.
Under the hood it's the same engine as our platform: real SMTP-level verification, catch-all resolution, disposable detection. 1B+ emails validated.
If you're building agents that touch email in any way, I'd love to hear what tools you'd want next — the MCP surface is very extendable.
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About Truelist MCP on Product Hunt
“Email validation for AI agents — hosted MCP, no keys”
Truelist MCP was submitted on Product Hunt and earned 14 upvotes and 2 comments, placing #24 on the daily leaderboard. A hosted MCP server that gives Claude, Cursor, and Copilot real email superpowers: verify addresses, validate whole lists, create and query batches — in plain English. One URL, OAuth sign-in, no API keys to paste. Runs on the Truelist engine (1B+ emails validated).
Truelist MCP was featured in Email (36.8k followers), Sales (22.1k followers) and Email Marketing (33.6k followers) on Product Hunt. Together, these topics include over 23.8k products, making this a competitive space to launch in.
Who hunted Truelist MCP?
Truelist MCP was hunted by Corey Haines. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Truelist MCP stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Corey Haines