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API reference

LatestRounds API

Access funding rounds, company enrichment, signals, investors, and categories from one API. Browse endpoints from the left sidebar to open a dedicated page per endpoint.

Authentication

Use a dashboard-generated API key on every request: Authorization: Bearer YOUR_API_KEY.

Rate and limits

Per-minute burst limits, monthly quota, and page-size caps are enforced by plan.

Base URL

https://latestrounds.com/api/v1

Common error codes

Standard error envelope:{ error: { code, message } }

StatusCodeDescription
400invalid_parameterOne or more request parameters are invalid.
401unauthorizedMissing or invalid API key.
403forbiddenFeature not available on current plan.
403test_link_already_issuedOnly one disposable public test link is allowed per endpoint family per IP.
404not_foundRequested resource could not be found.
404invalid_tokenPublic test token does not exist.
429rate_limitedPer-minute burst rate limit exceeded.
429quota_exceededMonthly request quota exceeded for the current plan.
410token_usedPublic test token was already consumed once.
410token_expiredPublic test token expired before use.
500internal_errorUnexpected server-side failure.