---
title: "Lseg (@lseg)"
description: "British provider of financial markets data and infrastructure."
account: "lseg"
---

# Lseg

British provider of financial markets data and infrastructure.

## APIs

1 public API with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/lseg/feed.md

- [Lseg Permid Entity Search Oct2020 API](https://skmtc.dev/lseg/apis/lseg-permid-entity-search-oct2020-api.md): Entity Search: query the PermID search endpoint by keyword with token-based access