Discovered · unverified

Reletter

Reletter is the newsletter data API for apps, agents, and outreach tools. Search 7M+ Substack, LinkedIn, Ghost, Beehiiv, and Kit newsletters; retrieve subscriber numbers, contacts, full-text posts, rankings, and audience data; and monitor mentions in near real time. Use it via REST, Python/CLI, or the remote MCP server. Agents can buy request bundles programmatically through HTTP 402 using MPP, with no browser signup required.

Source-provided description, not an independently verified capability claim.

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Vendor ownership, pricing, documentation, and execution are not verified for this discovery record. Appearing in the official MCP registry does not mean this server is vendor-owned or tested.

Relevance and review status.

Awaiting triage. Method: not yet classified.

Task signals: linkedin, outreach.

Setup and documentation.

No verified installation steps or callable endpoint are supplied by this discovery record. Follow the original repository or directory entry to inspect current setup instructions, permissions, and authentication.

Source receipts.

smithery · Observed 2026-10-17

Discovery ID: 92220e7602c9e387c289. Snapshot: 2026-10-17. Read this record as JSON · Full discovery dataset.

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