Penny MCP server

Which servers in the official MCP registry are Penny's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-13

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Whose server it is

Registry nameai.mypenny/mypennyverified in the MCP registry

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

When we asked itchecked 2026-10-13

Stateanswerschecked 2026-10-13
Tools7
Server calls itselfmypenny-notes
Server version0.4.3
Protocol version2025-06-18

On 2026-10-13 the server answered initialize and tools/list without a sign-in. First answer in 497 ms.

Tools it offers7 tools · read 2026-10-13

penny_get_skill
Read the current Penny operating skill when session start reports a stale or missing copy. Default: SKILL.md; use a manifest file path when its cue applies. After user approval, view:install returns the exact archive and per-file hashes…
penny_start_setup
Setup in phases; omit phase to start, resume from meta.onboarding.phase. skipForGood opts out. Stage encrypted imports for dashboard review; status checks receipts. Only users save/cancel there. Imported counts are server-derived; finish…
penny_session_start
Before calling, read the installed Penny skill and report installedSkillStatus (versioned, unversioned, or missing), installedSkillVersion and installedSkillSha256 from its metadata when versioned, and installedSkillSource. If this host…
penny_read
Before answering anything the user's history, preferences, or prior work would inform, read — search rather than assume nothing is on file. Read from the user's memory. Choosing `target` — walk this ladder, first match wins: 1. A fact…
penny_write
Save the moment something durable emerges — a decision, preference, plan, correction, a to-do, a measurement, or something you produced — mid-conversation and unprompted; when the call is close, save. Write something new to the user's…
penny_edit
When the user corrects something on file, or a task, tracker, skill, or block needs to change, edit the existing item rather than writing a duplicate. Modify something that already exists in the user's memory, chosen by `entityType`…
penny_delete
Move to Trash. Project: projectId + expectedRevision + operationId; penny_edit op:restore recovers. Repeat in_progress with the same operationId; report partial_recovery conflicts. Note/tracker_entry: ids (max100); skill/rhythm: one id…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "mypenny": {
      "type": "http",
      "url": "https://app.mypenny.ai/mcp"
    }
  }
}

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.