Fhir API
aehrc/pathling
Expert guidance for implementing FHIR RESTful API servers and clients following the HL7 FHIR specification.
Agent skill
Fhir Developer Skill
by FreedomIntelligence in FreedomIntelligence/OpenClaw-Medical-Skills
FHIR API development guide for building healthcare endpoints.
Install Fhir Developer Skill
$ npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install FreedomIntelligence/OpenClaw-Medical-Skills fhir-developer-skill --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/fhir-developer-skill .claude/skills/fhir-developer-skill && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "fhir-developer-skill" agent skill from https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills/tree/main/skills/fhir-developer-skill into .claude/skills/fhir-developer-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fhir-developer-skill", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills/tree/main/skills/fhir-developer-skillType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install FreedomIntelligence/OpenClaw-Medical-Skills fhir-developer-skill --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/fhir-developer-skill .agents/skills/fhir-developer-skill && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "fhir-developer-skill" agent skill from https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills/tree/main/skills/fhir-developer-skill into .agents/skills/fhir-developer-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fhir-developer-skill", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install FreedomIntelligence/OpenClaw-Medical-Skills fhir-developer-skill --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/fhir-developer-skill .cursor/skills/fhir-developer-skill && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "fhir-developer-skill" agent skill from https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills/tree/main/skills/fhir-developer-skill into .cursor/skills/fhir-developer-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fhir-developer-skill", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills.git --path skills/fhir-developer-skill--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install FreedomIntelligence/OpenClaw-Medical-Skills fhir-developer-skill --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/fhir-developer-skill .gemini/skills/fhir-developer-skill && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "fhir-developer-skill" agent skill from https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills/tree/main/skills/fhir-developer-skill into .gemini/skills/fhir-developer-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fhir-developer-skill", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install FreedomIntelligence/OpenClaw-Medical-Skills fhir-developer-skillInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/fhir-developer-skill .github/skills/fhir-developer-skill && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "fhir-developer-skill" agent skill from https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills/tree/main/skills/fhir-developer-skill into .github/skills/fhir-developer-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fhir-developer-skill", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install FreedomIntelligence/OpenClaw-Medical-Skills fhir-developer-skill --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/fhir-developer-skill .opencode/skills/fhir-developer-skill && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "fhir-developer-skill" agent skill from https://github.com/FreedomIntelligence/OpenClaw-Medical-Skills/tree/main/skills/fhir-developer-skill into .opencode/skills/fhir-developer-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fhir-developer-skill", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
fhir-developer-skill- GitHub stars
- 3.1k
- Used in
- 1 other repo
- Token cost
- ~2.5k tokens
- SKILL.md length
- 601 words
- Files
- 6 (incl. scripts, references)
- Skills in repo
- 279
- Repo updated
- First seen
- Licence
- None found
At a glance
FHIR API development guide for building healthcare endpoints.
- Works in 8 steps: Set Content-Type: application/fhir+json… → Return meta.versionId and… → Return Location header on create:… → …
- Creating FHIR REST endpoints (Patient
- SKILL.md covers Quick Reference, Required vs Optional Fields…, Value Sets (Enum Values) and Validation Pattern, plus 9 more sections
- Runs Python scripts from its folder; calls python; reaches terminology.hl7.org and loinc.org
What it does
Fhir Developer Skill is an agent skill from FreedomIntelligence/OpenClaw-Medical-Skills. FHIR API development guide for building healthcare endpoints. Use when: (1) Creating FHIR REST endpoints (Patient, Observation, Encounter, Condition, MedicationRequest), (2) Validating FHIR resources and returning proper HTTP status codes and error responses, (3) Implementing SMART on FHIR authorization and OAuth scopes, (4) Working with Bundles, transactions, batch operations, or search pagination. Covers FHIR R4 resource structures, required fields, value sets (status codes, gender, intent), coding systems…
Its SKILL.md is about 2.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `references/bundles.md`, `references/pagination.md` and `references/resource-examples.md`).
It sits in Research & Science, covering Clinical and healthcare research and REST APIs. The repository describes itself as: The largest open-source medical AI skills library for OpenClaw🦞.
When your agent uses it
- Creating FHIR REST endpoints (Patient
- MedicationRequest)
- Validating FHIR resources and returning proper HTTP status codes and error responses
- Implementing SMART on FHIR authorization and OAuth scopes
Example prompts
- “/fhir-developer-skill”
Requirements
- Python 3
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
- Set Content-Type: application/fhir+json on all responses
- Return meta.versionId and meta.lastUpdated on resources
- Return Location header on create: /Patient/{id}
- Return ETag header: W/"{versionId}"
- Use OperationOutcome for all error responses
- Validate required fields → 422 for missing
- Validate enum values → 422 for invalid
- Search returns Bundle with type: "searchset"
What it can do on your machine
Read from SKILL.md and the folder at commit b1f9b6e. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
terminology.hl7.orgloinc.orgsnomed.infonlm.nih.govhl7.org
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Fhir Developer Skill loads about 2.5k tokens when it runs, and up to ~7.2k if it reads all its reference files. Until then it costs about 151 tokens; SKILL.md has 601 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 601 words (~2,488 tokens).
“Only validate fields with cardinality starting with "1" as required.”
- name
- fhir-developer-skill
Files
SKILL.md and 5 other files (scripts, references) in skills/fhir-developer-skill of FreedomIntelligence/OpenClaw-Medical-Skills.
- SKILL.md
- references/bundles.md
- references/pagination.md
- references/resource-examples.md
- references/smart-auth.md
- scripts/setup_fhir_project.py
Open the folder on GitHubat commit b1f9b6e
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in FreedomIntelligence/OpenClaw-Medical-Skills, which our catalogue first saw on October 9, 2026.
Compare with similar skills
Fhir Developer Skill next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Fhir Developer Skill this skillFreedomIntelligence/OpenClaw-Medical-Skills | 3.1k | 1 repos | ~2.5k | Automated safety check: Pass | None | |
| Fhir APIaehrc/pathling | 137 | — | ~1.5k | Automated safety check: Pass | Apache-2.0 | |
| Claude To MedrixflowCitrus-bit/Anaxa | 120 | — | ~1.7k | Automated safety check: Pass | MIT | |
| Pubchem Databasedavila7/claude-code-templates | 32k | 11 repos | ~4.1k | Automated safety check: Pass | MIT | |
| Hapi Fhir Serveraehrc/pathling | 137 | — | ~2.6k | Automated safety check: Pass | Apache-2.0 | |
| Searching Clinicaltrialsmaziyarpanahi/openmed | 5.5k | — | ~2k | Automated safety check: Pass | Apache-2.0 |
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Related
Categories
Questions about Fhir Developer Skill
What does Fhir Developer Skill do?
FHIR API development guide for building healthcare endpoints. Fhir Developer Skill is an agent skill from FreedomIntelligence/OpenClaw-Medical-Skills. FHIR API development guide for building healthcare endpoints.
When should I use Fhir Developer Skill?
Fhir Developer Skill fits situations like: creating FHIR REST endpoints (Patient; medicationRequest); validating FHIR resources and returning proper HTTP status codes and error responses; implementing SMART on FHIR authorization and OAuth scopes.
How do I install Fhir Developer Skill in Claude Code?
Run `npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a claude-code`. Or copy the skill folder (skills/fhir-developer-skill in FreedomIntelligence/OpenClaw-Medical-Skills) into .claude/skills/fhir-developer-skill in your project. Claude Code loads it when a task matches its description.
How do I install Fhir Developer Skill in Codex?
Run `npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a codex`. Or copy the skill folder (skills/fhir-developer-skill in FreedomIntelligence/OpenClaw-Medical-Skills) into .agents/skills/fhir-developer-skill in your project. Codex loads it when a task matches its description.
Can I use Fhir Developer Skill in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add FreedomIntelligence/OpenClaw-Medical-Skills --skill fhir-developer-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/fhir-developer-skill, .gemini/skills/fhir-developer-skill, .github/skills/fhir-developer-skill and .opencode/skills/fhir-developer-skill in your project.
What does Fhir Developer Skill need to run?
Going by SKILL.md and its folder, Fhir Developer Skill needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.
Does Fhir Developer Skill access the network?
SKILL.md names 5 domains. In commands or code: terminology.hl7.org, loinc.org, snomed.info, nlm.nih.gov and hl7.org; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.
Is Fhir Developer Skill safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Fhir Developer Skill use?
No licence was found for Fhir Developer Skill or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Fhir Developer Skill use?
About 2.5k tokens (SKILL.md is roughly 10k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 4.7k tokens, read only when the agent opens those files.
What are the alternatives to Fhir Developer Skill?
Skills that share tags, products or a category with Fhir Developer Skill: Fhir API (aehrc/pathling, 137 stars), Claude To Medrixflow (Citrus-bit/Anaxa, 120 stars), Pubchem Database (davila7/claude-code-templates, 32k stars) and Hapi Fhir Server (aehrc/pathling, 137 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Fhir Developer Skill?
FreedomIntelligence (a GitHub organization) maintains it in FreedomIntelligence/OpenClaw-Medical-Skills, which has 3,052 GitHub stars. The repository holds 279 skills in this directory. The repository was last updated on July 21, 2026.
Source: FreedomIntelligence/OpenClaw-Medical-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.