mcpcost

io.mailtrap/mcp

Mailtrap

Is the Mailtrap MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-02.

Official MCP Server for Mailtrap

alive probed 2026-11-14 · unchanged since 2026-11-02

130tools
41ktokens in Claude Opus 5.5
20.5 %of Claude's 200k window
16×the median server
677 msto initialize
13 msto list tools
Run it
npx -y mcp-mailtrap@0.11.0 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
mailtrap-mcp-server 0.11.0
Capabilities
prompts, resources, tools
Instructions
none
Of a 1M window
4.1 % of a 1M context window
Count
41k tokens in Claude Opus 5.5, exact, measured 2026-11-02. With the Claude Code prefix mcp__…__ on each tool name: 42k. The o200k_base estimate is 23k. Counted again when the tool definitions change. Method.
Repository
https://github.com/mailtrap/mailtrap-mcp
Website
https://docs.mailtrap.io/guides/ai-powered-integrations/mcp-server
Registry
active, updated 2026-10-27 · registry entry
Changes
3 recorded, reachable in 3 of them. A row is added when the result, the tool count or the cost changes.

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.80×.

Tool≈ Claude tokenso200k estimateShare of this server
list-email-logs2 6211 4536 %
batch-send-sandbox-email2 1631 1995 %
batch-send-bulk-email2 1051 1675 %
batch-send-transactional-email2 0781 1525 %
send-sandbox-email1 3157293 %

Compare this server with others.

More servers

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention mailtrap.

History

We add a row when the result changes. A server with no change keeps its last row.

ProbedResultInitToolsClaudeo200k
2026-11-02 08:26alive587 ms13041k23k
2026-10-26 07:04alive435 ms12538k21k
2026-10-19 06:56alive677 ms12521k

Badge for the README

mcpcost: alive

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Atom feed

A mail when this server changes

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.

For the publisher