Fhirfly runs on your own machine — the client starts it, so there is no endpoint to ping. 96 installs a week from npm. Last commit 11 Sep 2026.
Healthcare reference data for AI agents: providers, drugs, diagnoses, labs, codes, claims.
Nothing serious here today
Today is the operative word: we check Fhirfly every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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.
claude mcp add mcp-server -e 'FHIRFLY_API_KEY=<FHIRFLY_API_KEY>' -- npx -y @fhirfly-io/mcp-server{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@fhirfly-io/mcp-server"
],
"env": {
"FHIRFLY_API_KEY": "<FHIRFLY_API_KEY>"
}
}
}
}[mcp_servers.mcp-server]
command = "npx"
args = ["-y", "@fhirfly-io/mcp-server"]
env = { FHIRFLY_API_KEY = "<FHIRFLY_API_KEY>" }{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@fhirfly-io/mcp-server"
],
"env": {
"FHIRFLY_API_KEY": "<FHIRFLY_API_KEY>"
}
}
}
}{
"servers": {
"mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@fhirfly-io/mcp-server"
],
"env": {
"FHIRFLY_API_KEY": "<FHIRFLY_API_KEY>"
}
}
}
}Put your own value in place of
<FHIRFLY_API_KEY> (FHIRfly API key (get one at https://fhirfly.io)).
The author’s registry entry marks it as required.
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Fhirfly — questions
Answers built from our own checks of this server.