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Last EHR — Medplum MCP Server

local only

Last EHR — Medplum runs on your own machine — the client starts it, so there is no endpoint to ping. 378 installs a week from npm. Last commit 26 Oct 2026.

FHIR chart tools for MCP: read-only by default, with elicitation-gated, human-approved writes.

Installs per day peak 234 · avg 22 · +95% w/w
a month agotoday
378
Installs / week
npm · @lastehr/mcp
4
Stars
13 open issues
26 Oct 2026
Last commit
2 releases in 90 days
Apache-2.0
License
TypeScript

What the code does

We read the source, 6 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Dumps the whole environment packages/conformance/src/harness.ts:127
        Object.entries(process.env).filter(

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add last-ehr -- npx -y @lastehr/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "last-ehr": {
      "command": "npx",
      "args": [
        "-y",
        "@lastehr/mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.last-ehr]
command = "npx"
args = ["-y", "@lastehr/mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "last-ehr": {
      "command": "npx",
      "args": [
        "-y",
        "@lastehr/mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "last-ehr": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@lastehr/mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: MEDPLUM_ACCESS_TOKEN (FHIR chart tools over Medplum or a local HAPI stack: read-only by default, with an opt-in elicitation-gated write profile (human-approved per action)), MEDPLUM_CLIENT_ID (FHIR chart tools over Medplum or a local HAPI stack: read-only by default, with an opt-in elicitation-gated write profile (human-approved per action)), MEDPLUM_CLIENT_SECRET (FHIR chart tools over Medplum or a local HAPI stack: read-only by default, with an opt-in elicitation-gated write profile (human-approved per action)), MEDPLUM_BASE_URL (FHIR chart tools over Medplum or a local HAPI stack: read-only by default, with an opt-in elicitation-gated write profile (human-approved per action)).

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Last EHR — Medplum — questions

Answers built from our own checks of this server.

Why is there no uptime for Last EHR — Medplum?
Last EHR — Medplum runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @lastehr/mcp was installed 378 times last week.
How do I connect Last EHR — Medplum?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @lastehr/mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Last EHR — Medplum?
The npm package @lastehr/mcp was installed 378 times in the last week. Week over week that is +95%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Last EHR — Medplum open source?
Yes — it is published under the Apache-2.0 licence, written in TypeScript, 4 stars on GitHub and 13 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.