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APIMarkets Companies

List companies

Lists the workspace’s companies, by registrant name then CIK: each with its registrant, its forms, from year and follow switch, the newest period end the store holds for it, whether the store is still gathering a filing of it, and the comps holding it that the caller can see. follow keeps only the companies whose follow switch is on (true) or off (false). Answers the list envelope; the list is not paged (has_more is false and next_cursor null). Needs a Market research subscription and markets:read.

Requires the markets:read scope. Rate limit: 200 requests per minute per key (the api lane).

Authentication

AuthorizationBearer

Bearer token. Use ss_live_… for live data or ss_test_… for the sandbox (test mode). See Authentication.

Headers

SpreadSpace-VersionstringOptionalformat: "^\d{4}-\d{2}-\d{2}$"

Pin the API version, e.g. 2026-10-07. Omit to get the latest. See Versioning.

Query parameters

followbooleanOptional
When given, only the companies whose follow switch matches.

Response headers

X-Request-IDstringOptional
Correlation ID for this request. Quote it in support tickets.
SpreadSpace-VersionstringOptional

The API surface version the server resolved for this request. Always present, regardless of whether the client supplied the request-side SpreadSpace-Version header. Default: 2026-10-07.

RateLimit-Limitinteger

Request budget of the endpoint’s rate-limit policy per 60-second sliding window. See Rate limits.

RateLimit-Remaininginteger

Requests left in the current window. Suppressed on 429 responses produced outside the rate limiter (for example a usage throttle), where a remaining budget would be misleading.

RateLimit-Resetinteger

Seconds until a guaranteed-fresh window.

RateLimit-PolicystringOptional

The active policy in limit;w=window-seconds form.

Response

OK
datalist of objects
has_moreboolean
next_cursorstring or nullOptional

Errors

400
Bad Request Error
401
Unauthorized Error
403
Forbidden Error
404
Not Found Error
429
Too Many Requests Error
500
Internal Server Error