# Clarivate

> Clarivate is a global information services company providing data, insights and analytics
> across academia and government, life sciences and healthcare, and intellectual property. Its
> APIs are published on one developer portal at developer.clarivate.com and served through one
> gateway at api.clarivate.com. Every API is credential-gated: an API key in the X-ApiKey header
> (or OAuth 2.0 client credentials), issued per registered application, and for all but one plan
> entitled from the institution's product subscription.

Generated by API Evangelist on 2026-09-05 from artifacts in https://github.com/api-evangelist/clarivate.
Clarivate does not publish an llms.txt of its own (probed 2026-09-05: clarivate.com/llms.txt 404,
developer.clarivate.com/llms.txt 404).

## Start here

- [Developer portal](https://developer.clarivate.com/): the API catalog, subscription and application registration.
- [API catalog](https://developer.clarivate.com/apis): all 31 listings; 26 publish a machine-readable contract.
- [API access guide](https://developer.clarivate.com/help/api-access): X-ApiKey header and the OAuth 2.0 client-credentials flow.
- [Register an application](https://developer.clarivate.com/help/application): keys are bound to an application, not a user.
- [Web of Science API release notes](https://clarivate.com/academia-government/release-notes/wos-apis/): the only dated changelog (last entry 2024-06-20).
- [Status page](https://status.clarivate.com/)
- [Trust center](https://clarivate.com/trust-center/) and [security compliance](https://clarivate.com/trust-center/security-compliance/)

## How to call it

- Base host: `https://api.clarivate.com` (InCites is `https://incites-api.clarivate.com`, WoS Lite is `https://wos-api.clarivate.com`).
- Auth: `curl -H 'X-ApiKey: <key>' https://api.clarivate.com/<api>/<endpoint>`.
- OAuth 2.0 client credentials: `POST https://api.clarivate.com/auth/{auth-method}/api/{api}/token`, returns a bearer token with `expires_in: 3600`.
- Pagination (Web of Science Starter / Journals / Researcher): `page` and `limit` (0-50, default 10); the response carries `metadata.total`, `metadata.page`, `metadata.limit`.
- Errors: `{"error": {"status", "title", "details"}}`; 401 returns `{"error_description", "error"}`; gateway rejections return `{"message", "request_id"}`. Not RFC 9457.
- Throttles are published per plan (1-5 requests/second) but NO rate-limit response header, 429 body or Retry-After is documented.
- There is no sandbox, no test mode, no idempotency key and no webhook or event surface anywhere in the estate.

## Published contracts

Each contract is fetchable at `https://developer.clarivate.com/apis/<slug>/swagger`.

- [Intellectual Property (IP) Data API](https://developer.clarivate.com/apis/ipdata-api) — 33 operation(s), OpenAPI 3.0.3, base `https://api.clarivate.com`. Spec: `openapi/clarivate-ipdata-api-openapi.json`
- [Converis Web Services](https://developer.clarivate.com/apis/converisreadapi) — 24 operation(s), OpenAPI 3.0.0, base `https://api.clarivate.com/converisreadapi`. Spec: `openapi/clarivate-converisreadapi-openapi.json`
- [Derwent Sequence Search API](https://developer.clarivate.com/apis/dss-search-api) — 23 operation(s), OpenAPI 3.0.3, base `https://api.clarivate.com/derwent-sequence-search`. Spec: `openapi/clarivate-dss-search-api-openapi.json`
- [Web of Science™ Journals API](https://developer.clarivate.com/apis/wos-journal) — 13 operation(s), OpenAPI 3.0.0, base `https://api.clarivate.com/apis/wos-journals/v1`. Spec: `openapi/clarivate-wos-journal-openapi.json`
- [EndNote REST API](https://developer.clarivate.com/apis/endnote) — 12 operation(s), Swagger 2.0, base `https://api.clarivate.com/api/endnote/v1`. Spec: `openapi/clarivate-endnote-openapi.json`
- [Converis Legacy API](https://developer.clarivate.com/apis/legacy_api) — 12 operation(s), OpenAPI 3.0.0, base `https://api.clarivate.com/legacyapi`. Spec: `openapi/clarivate-legacy-api-openapi.json`
- [Converis Additional APIs](https://developer.clarivate.com/apis/converis_additional_api) — 10 operation(s), OpenAPI 3.0.0, base `https://api.clarivate.com/converisadditionalapi`. Spec: `openapi/clarivate-converis-additional-api-openapi.json`
- [InCites Document Level Metrics API](https://developer.clarivate.com/apis/incites) — 10 operation(s), OpenAPI 3.0.1, base `https://incites-api.clarivate.com/api/incites`. Spec: `openapi/clarivate-incites-openapi.json`
- [Web of Science API Expanded](https://developer.clarivate.com/apis/wos) — 10 operation(s), OpenAPI 3.0.0, base `https://api.clarivate.com/api/wos`. Spec: `openapi/clarivate-wos-openapi.json`
- [Web of Science SUSHI COUNTER5 API](https://developer.clarivate.com/apis/sushi-api) — 8 operation(s), Swagger 2.0, base `https://api.clarivate.com/api/counter/r5`. Spec: `openapi/clarivate-sushi-api-openapi.json`
- [Converis CUD API](https://developer.clarivate.com/apis/cud_api) — 6 operation(s), OpenAPI 3.0.0, base `https://api.clarivate.com/cudapi`. Spec: `openapi/clarivate-cud-api-openapi.json`
- [C3-AI-API](https://developer.clarivate.com/apis/ric_ai_api) — 5 operation(s), OpenAPI 3.1.0, base `https://api.clarivate.com/c3/ai`. Spec: `openapi/clarivate-ric-ai-api-openapi.json`
- [Cortellis Drug Discovery Intelligence SUSHI COUNTER5 API](https://developer.clarivate.com/apis/cddi-counter-five) — 4 operation(s), Swagger 2.0, base `https://api.clarivate.com/api/cddi/counter5`. Spec: `openapi/clarivate-cddi-counter-five-openapi.json`
- [RIC-FEED-API](https://developer.clarivate.com/apis/ric-download-api) — 4 operation(s), OpenAPI 3.1.0, base `https://api.clarivate.com`. Spec: `openapi/clarivate-ric-download-api-openapi.json`
- [Web of Science™ Researcher API](https://developer.clarivate.com/apis/wos-researcher) — 4 operation(s), OpenAPI 3.0.0, base `https://api.clarivate.com/apis/wos-researcher`. Spec: `openapi/clarivate-wos-researcher-openapi.json`
- [Web of Science™ Starter API](https://developer.clarivate.com/apis/wos-starter) — 4 operation(s), OpenAPI 3.0.0, base `https://api.clarivate.com/apis/wos-starter/v1`. Spec: `openapi/clarivate-wos-starter-openapi.json`
- [Web of Science API Lite](https://developer.clarivate.com/apis/woslite) — 3 operation(s), OpenAPI 3.0.3, base `https://wos-api.clarivate.com/api/woslite`. Spec: `openapi/clarivate-woslite-openapi.json`
- [lsh-download-ext-client](https://developer.clarivate.com/apis/lsh-download-ext-client) — 2 operation(s), Swagger 2.0, base `https://api.clarivate.com/lsh-ds`. Spec: `openapi/clarivate-lsh-download-ext-client-openapi.json`
- [Web of Science Reviewer Locator](https://developer.clarivate.com/apis/wosrl-api) — 2 operation(s), Swagger 2.0, base `https://api.clarivate.com/api/wosrl`. Spec: `openapi/clarivate-wosrl-api-openapi.json`
- [cortellis-api-collection](https://developer.clarivate.com/apis/cortellis-api-collection) — 1 operation(s), Swagger 2.0, base `https://api.clarivate.com/cortellis-api-collection-1`. Spec: `openapi/clarivate-cortellis-api-collection-openapi.json`
- [patentmonitor-innography](https://developer.clarivate.com/apis/patentmonitor-innography) — 1 operation(s), Swagger 2.0, base `https://api.clarivate.com/patentmonitor/api/v1/innography/send-alert-results`. Spec: `openapi/clarivate-patentmonitor-innography-openapi.json`
- [Publons Reviewer Connect](https://developer.clarivate.com/apis/reviewer-connect) — 1 operation(s), Swagger 2.0, base `https://api.clarivate.com/reviewer-connect/api`. Spec: `openapi/clarivate-reviewer-connect-openapi.json`
- [LSH AI Agent API](https://developer.clarivate.com/apis/ric-agent-hub-api) — 1 operation(s), OpenAPI 3.1.0, base `https://api.clarivate.com`. Spec: `openapi/clarivate-ric-agent-hub-api-openapi.json`
- [LSH Data Product Search & Retrieve API](https://developer.clarivate.com/apis/ric-searchretrieve-api) — 1 operation(s), Swagger 2.0, base `https://api.clarivate.com/ric/searchretrieve/v1/`. Spec: `openapi/clarivate-ric-searchretrieve-api-openapi.json`
- [SUSHI Status API](https://developer.clarivate.com/apis/sushi-status-api) — 1 operation(s), Swagger 2.0, base `https://api.clarivate.com/api/counter/r51/status`. Spec: `openapi/clarivate-sushi-status-api-openapi.json`
- [twa-riskmark-integration](https://developer.clarivate.com/apis/twa-riskmark-integration) — 1 operation(s), Swagger 2.0, base `https://api.clarivate.com/integration-api`. Spec: `openapi/clarivate-twa-riskmark-integration-openapi.json`

## Standards this estate speaks

- **NISO SUSHI / COUNTER Release 5** — the Web of Science SUSHI API and the Cortellis Drug Discovery Intelligence SUSHI API implement the COUNTER R5 Code of Practice with the canonical report paths (`/status`, `/members`, `/reports`, `/reports/pr`, `/reports/pr_p1`, `/reports/dr`, `/reports/dr_d1`, `/reports/dr_d2`). A COUNTER 5.1 status endpoint is served unauthenticated at `https://api.clarivate.com/api/counter/r51/status`.
- **ORCID** — a first-class search field of the Researcher API (`ORCID=0000-0000-000-0000`), joinable to Clarivate's ResearcherID.
- **DOI / ISSN / eISSN / ISBN / PMID** — declared identifier fields and search field tags, not free text.

## Deprecated and retired

- **EndNote REST API** — marked deprecated on the portal; no new subscriptions.
- **DI GraphQL API (`POST /derwent-graphql`)** — marked deprecated; superseded by the IP Data API.
- **Web of Science API Lite** — "replaced by the Starter API".
- **Web of Science Expanded (SOAP)** — sunset 2023-11-01 after scheduled brownouts and warning headers.
- **Links AMR** — sunset; the Starter API's `SUR` search tag and `detail=short` replace it.

## Artifacts in this repository

- `openapi/` — 26 OpenAPI/Swagger contracts harvested verbatim, plus openapi/_original/ as the as-published archive.
- `authentication/clarivate-authentication.yml` — API key, OAuth 2.0 client credentials, Basic (Converis) and the EndNote authorization-code flow.
- `conventions/clarivate-conventions.yml` — Pagination, query syntax, error envelope, versioning, idempotency (none) and reversibility.
- `errors/clarivate-problem-types.yml` — The three error envelopes and the documented status codes.
- `plans/clarivate-plans-pricing.yml` — 13 published entitlement plans; no money price anywhere.
- `rate-limits/clarivate-rate-limits.yml` — 13 published per-second / per-day ceilings.
- `lifecycle/clarivate-lifecycle.yml` — Versioning, the deprecation record and the status page.
- `changelog/clarivate-changelog.yml` — 17 dated Web of Science API release-note entries.
- `conformance/clarivate-conformance.yml` — COUNTER SUSHI, ORCID, identifier schemes, and the published certifications.
- `security/` — Domain security probe, the HackerOne disclosure program and the trust center.
- `data-model/clarivate-data-model.yml` — 256 declared schemas and 187 relationships across the estate.
- `packages/clarivate-packages.yml` — 13 first-party SDK repositories — GitHub source only, none on a package registry.
- `mcp/clarivate-mcp.yml` — Candidate tool list only. Clarivate ships no MCP server; Nexus Connect is announced, not callable.
- `well-known/clarivate-well-known.yml` — No /.well-known document on any host.
- `skills/` — Packaged agent skills grounded in real operationIds.