# OMOPHub API

**Canonical:** https://apis.io/apis/omophub/omophub-api/  
**Provider:** OMOPHub — https://apis.io/providers/omophub/  
**Base URL:** https://api.omophub.com  
**Documentation:** https://docs.omophub.com/api-reference/introduction

OMOPHub API is published by [OMOPHub](https://apis.io/providers/omophub/) on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 6 JSON Schema definitions. The published artifact set on APIs.io includes an OpenAPI specification and 6 JSON Schemas.

OMOPHub API as documented publicly: 18 operations. Contract generated from the documentation by API Evangelist (2026-10-23); not the provider's own document.

## Operations (18)

| Method | Path | Summary |
|---|---|---|
| POST | `/fhir/r4` | POST /fhir/r4 |
| GET | `/fhir/r4/CodeSystem` | GET /fhir/r4/CodeSystem |
| GET | `/fhir/r4/CodeSystem/` | FHIR $lookup |
| POST | `/oauth2/token` | The FHIR Terminology Service additionally accepts RFC 6749 client_credentials via POST /oauth2/token |
| POST | `/v1/concepts/map` | POST /v1/concepts/map |
| GET | `/v1/concepts/{conceptid}` | GET /v1/concepts/{conceptId} |
| GET | `/v1/concepts/{conceptid}/mappings` | GET /v1/concepts/{conceptId}/mappings |
| GET | `/v1/domains` | GET /v1/domains |
| GET | `/v1/fhir/resolve` | Resolve a FHIR Code to OMOP |
| POST | `/v1/fhir/resolve` | POST /v1/fhir/resolve |
| POST | `/v1/fhir/resolve/batch` | POST /v1/fhir/resolve/batch |
| POST | `/v1/search/advanced` | POST /v1/search/advanced |
| POST | `/v1/search/bulk` | POST /v1/search/bulk |
| GET | `/v1/search/concepts` | GET /v1/search/concepts |
| GET | `/v1/search/facets` | GET /v1/search/facets |
| GET | `/v1/search/semantic` | GET /v1/search/semantic |
| POST | `/v1/search/similar` | POST /v1/search/similar |
| GET | `/v1/search/suggest` | GET /v1/search/suggest |

## Machine-readable artifacts (8)

- **OpenAPI** — https://artifacts.apis.io/omophub/openapi/_ae-authored/omophub-openapi-generated.yml
- **JSONSchema** — https://artifacts.apis.io/omophub/json-schema/omophub-post-v1-search-bulk-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/omophub/json-schema/omophub-post-v1-fhir-resolve-batch-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/omophub/json-schema/omophub-post-v1-search-similar-request-schema.json
- **JSONSchema** — https://artifacts.apis.io/omophub/json-schema/omophub-get-v1-domains-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/omophub/json-schema/omophub-post-fhir-r4-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/omophub/json-schema/omophub-post-v1-search-bulk-request-schema.json
- **APIsJSON** — https://artifacts.apis.io/omophub/apis.yml

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/omophub/omophub-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/omophub/.