MCP Server · Infrastructure

MailStream

The first MCP server for physical mail: send postcards and letters, manage lists and campaigns.

Tier 1 sealed by lossy-channel-auto

Source: https://mailstream.app/developers/mcp-server
Registry namespace: app.mailstream/mailstream
Imported from: mcp-registry
Pricing: Open Source
Added: Jul 21, 2026

Seal evidence

Auto-sealed Tier 1 on import from the official MCP Registry. Lossy Channel layers 1–2 to be backfilled by the Foreman.

L1-wash

Pinned to 1.0.0

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