com.mcparmory/postmark
Postmark
Is the com.mcparmory/postmark MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-14.
Send, track, and manage transactional and bulk email delivery
alive probed 2026-11-14
39tools
13ktokens in Claude Opus 5.5
6.5 %of Claude's 200k window
5.2×the median server
9.8 sto initialize
841 msto list tools
- Run it
- uvx mcparmory-postmark@1.0.2 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- Postmark 4.2.0
- Capabilities
- logging, prompts, resources, tools
- Instructions
- none
- Of a 1M window
- 1.3 % of a 1M context window
- Count
- 13k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 13k. The o200k_base estimate is 7.3k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/mcparmory/registry
- Registry
- active, updated 2026-05-12 · registry entry
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 tokens | o200k estimate | Share of this server |
|---|---|---|---|
| send_email_with_template | 1 109 | 617 | 9 % |
| send_emails_batch | 894 | 497 | 7 % |
| send_email | 892 | 496 | 7 % |
| send_email_batch_with_templates | 750 | 417 | 6 % |
| list_bounces | 690 | 384 | 5 % |
Compare this server with others.
More servers
Other registry entries on pypi.org, the ones next to this name; all of them.
- com.mcparmory/pinecone · alive
- com.mcparmory/polygon · alive
- com.mcparmory/posthog · alive
- com.mcparmory/postman · alive
- com.mcparmory/ragie · alive
- com.mcparmory/ramp · alive
- com.mcparmory/replicate · alive
- com.mcparmory/resend · alive
Servers that mention postmark.
- Constat MCP — FDA Device Evidence Lifecycle com.healthai/radar · rejects our protocol version
- Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun io.github.CyberMax-tools/send-email · needs auth
- Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun io.github.shawmena-dotcom/send-email · needs auth
- Postmark io.github.pipeworx-io/postmark · alive
- Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun dev.workers.cybermax-tools.cybermax/send-email · needs auth
- io.github.mrfentmen/postmark-mcp · alive
- Postmarkr com.postmarkr/letters · needs auth
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
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
- The server answers initialize and tools/list. Nothing to fix.