fhir-format vs io.github.cyanheads/medical-codes-mcp-server
fhir-format is a plugin bundle for AI coding tools published by dnlbox. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). io.github.cyanheads/medical-codes-mcp-server is an MCP server published by cyanheads. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). As of our marketplace pass on 2026-10-25. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  fhir-format |  io.github.cyanheads/medical-codes-mcp-server |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.1.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.4.2 Downloads/month (npm): 1 495 Downloads/week (npm): 150 Forks (GitHub): 1 Stars (GitHub): 2 Not marked · First seen |
| npm registry (MCP servers) | Not listed | Listed Version: 0.4.2 Downloads/month (npm): 1 495 Downloads/week (npm): 150 Forks (GitHub): 1 Stars (GitHub): 2 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | fhir-format | io.github.cyanheads/medical-codes-mcp-server |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 0 (worse) | 2 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 1 (better) |
| Last release (differs) | Not published | 2026-10-25 |
| Where it runs (differs) | Installs as a plugin bundle | Remote server or your machine |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 8, secrets among them: 0 |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence (differs) | MIT | Apache-2.0 |
| Repository (differs) | github.com/dnlbox/fhir-format-skill | github.com/cyanheads/medical-codes-mcp-server |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 2 days ago |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
fhir-format
Accuracy-first FHIR R4/R4B/R5 skill for JSON formatting and reasoning. It labels claims as normative/version-delta/profile-dependent/practice, requires source-backed normative statements, avoids guessed terminology codes, and clearly separates structural validation from full profile conformance.
io.github.cyanheads/medical-codes-mcp-server
Offline US medical code lookup and crosswalk — ICD-10-CM/PCS, HCPCS Level II, RxNorm. Keyless.
How to run each
fhir-format As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install fhir-format@claude-communityio.github.cyanheads/medical-codes-mcp-server As a remote MCP server
claude mcp add --transport http medical-codes-mcp-server https://medical-codes.caseyjhand.com/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only io.github.cyanheads/medical-codes-mcp-server has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of fhir-format publish no settings it asks for, so we do not compare settings.
What it can do: fhir-format · What it can do: io.github.cyanheads/medical-codes-mcp-server · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.