# LSEG Intelligent Tagging (Open PermID) API

**Canonical:** https://apis.io/apis/lseg/lseg-api/  
**Provider:** LSEG — https://apis.io/providers/lseg/  
**Base URL:** https://api-eit.refinitiv.com  
**Documentation:** https://developers.lseg.com/en/api-catalog/open-perm-id/intelligent-tagging-restful-api/tutorials

LSEG Intelligent Tagging (Open PermID) API is one of 16 APIs that [LSEG](https://apis.io/providers/lseg/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 4 JSON Schema definitions. The published artifact set on APIs.io includes an OpenAPI specification and 4 JSON Schemas.

LSEG API as documented publicly: 3 operations. Contract generated from the documentation by API Evangelist (2026-10-20); not the provider's own document.

## Operations (3)

| Method | Path | Summary |
|---|---|---|
| GET | `/permid/calais` | Tag unstructured text content using the Open Calais intelligent tagging service. |
| POST | `/permid/calais` | Tag content via HTTP REST interface to process and extract entities and relations from documents. |
| POST | `/tag/rs/enrich` | Tag content using the Intelligent Tagging API for On Premise Intelligent Tagging. |

## Machine-readable artifacts (6)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/lseg/refs/heads/main/openapi/_ae-authored/lseg-openapi-generated.yml
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/lseg/refs/heads/main/json-schema/lseg-post-permid-calais-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/lseg/refs/heads/main/json-schema/lseg-post-tag-rs-enrich-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/lseg/refs/heads/main/json-schema/lseg-post-tag-rs-enrich-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/lseg/refs/heads/main/json-schema/lseg-post-permid-calais-response-schema.json
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/lseg/refs/heads/main/apis.yml

## Other LSEG APIs (12)

- [LSEG World-Check One Case API](https://apis.io/apis/lseg/lseg-world-check-one-case-api/)
- [LSEG World-Check One Media-Check API](https://apis.io/apis/lseg/lseg-world-check-one-media-check-api/)
- [LSEG World-Check One Smart Filter API](https://apis.io/apis/lseg/lseg-world-check-one-smart-filter-api/)
- [LSEG World-Check One Audit API](https://apis.io/apis/lseg/lseg-world-check-one-audit-api/)
- [LSEG World-Check One Case Rating API](https://apis.io/apis/lseg/lseg-world-check-one-case-rating-api/)
- [LSEG World-Check One Linked Cases API](https://apis.io/apis/lseg/lseg-world-check-one-linked-cases-api/)
- [LSEG World-Check One Group API](https://apis.io/apis/lseg/lseg-world-check-one-group-api/)
- [LSEG World-Check One User API](https://apis.io/apis/lseg/lseg-world-check-one-user-api/)
- [LSEG World-Check One Reference API](https://apis.io/apis/lseg/lseg-world-check-one-reference-api/)
- [LSEG World-Check One Client Watchlist API](https://apis.io/apis/lseg/lseg-world-check-one-client-watchlist-api/)
- [LSEG World-Check One Reporting API](https://apis.io/apis/lseg/lseg-world-check-one-reporting-api/)
- [LSEG World-Check One Upcoming API](https://apis.io/apis/lseg/lseg-world-check-one-upcoming-api/)

---

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