---
title: "Company timeline"
method: GET
path: "/intelligence/timeline/{number}"
tags: ["Intelligence"]
---

# Company timeline

`GET /intelligence/timeline/{number}`

## Request

- Base URL: `https://api.companystack.co.uk`
- URL: `https://api.companystack.co.uk/intelligence/timeline/{number}`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-Api-Key`

The company's history as dated events, oldest first: incorporation, changes of name, persons with significant control notified and ceased, filings and, where it applies, dissolution. `filings_included` and `filings_total` say how much of the filing history is in the timeline, and `filings_source` where it was read from.

## Path parameters

- `number` string, required

## Response `200`

Event timeline

## Other responses

- `401`: API key missing, malformed or revoked
- `403`: The key's plan does not include this endpoint (`code: plan_upgrade_required`, with `upgrade_url`), the key may not call it, or the key is beyond the plan's key limit after a downgrade (`code: key_limit_exceeded`: the newest keys are paused until keys are deleted or the plan upgraded)
- `429`: Per-minute or per-day limit reached (`code: rate_limited`, `window: minute|day`). Wait `Retry-After` seconds; when both windows are full the day is reported. A refused request does not count against either limit. A bulk lookup (`POST /company/bulk`) counts each company number in it as one request, so one that is more than you have left is refused whole, and the body adds `requested` and `fits`.

---

[API](https://skmtc.dev/companystack/apis/companystack-api.md) · [All operations](https://skmtc.dev/companystack/apis/companystack-api/llms.txt) · [OpenAPI document](https://skmtc.dev/companystack/apis/companystack-api/revisions/8f3234237d2d?raw)