RadMail MCP server

• Registry nameai.radmail/radmail-mcpverified in the MCP registry

The registry name sits under radmail.ai. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-23
• Tools6
• Server calls itselfradmail-sandbox
• Server version0.1.0
• Protocol version2025-06-18

On 2026-10-23 the server answered initialize and tools/list without a sign-in. First answer in 95 ms.

• Its tools do triage inbound email by importance and urgency, but not hold money-moving and banking-change requests for human review.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP score78 of 100answers 100 · does the job 50 · definitions 83 · context 100 · use 38 · connects 100
• What an agent can do with it1 of 2 use cases
• Use78 npm downloads a week
• Answered100% of days12 of 12 daily checks
• Median first answer157 ms
• Space in an agent's context≈ 605 tokensthe definitions of all its tools (6), which an agent carries on every turn
• Tool definitionsB · 83 of 100
• Typed results0 of 6 toolsdeclared outputSchema: results come typed, read once

• Not saying whether it only reads or can destroy: 6 of 6

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• triage_inbox

  Rank a mailbox on two axes (importance x urgency) and return what needs a human now versus what can wait or is already handled — with each thread's open commitment (the promise you owe or are owed, and whether it's overdue) surfaced…

• list_right_now

  Return only the 'Right Now' lane — the most recent and most important messages that genuinely can't be missed.

• why_surfaced

  Explain in plain English why a given message was surfaced — the signals (sender, urgency, commitment) behind its rank.

• list_commitments

  Extract the open commitments in the correspondence, both owed by you and owed to you, with who and by-when.

• draft_reply

  Draft a reply for a thread. It returns text for a human to review — it does not and cannot send it.

• search

  Find a specific message by sender, subject, or content. Results come back most-relevant + newest first, and every hit says where it matched (from / subject / body) and why. On this hosted sandbox it searches the built-in demo inbox; run…