Search funding rounds (venture rounds, debt, grants, IPOs), newest announcement first. Costs $0.02 per record returned, after 100 free records a month; a search that matches nothing is free. Page with cursor: pass back next_cursor exactly as returned; a null next_cursor means there are no more matches. Narrow with filters before raising limit.

Read one funding record by id. Costs $0.02 when found (free records are used first); a missing id is free.

Start a cited pre-call research brief on one prospect: company, funding, traction, competitors, news, people, risks, regions, plus a fit section when you pass context. Give exactly ONE identifier (domain, website_url, company_name, company_linkedin_url, a work email, or linkedin_url), or person_name together with company_name. Returns research_id at once; the brief takes 20 to 90 seconds, so poll research_get every 10 to 15 seconds until status is completed or failed. Costs one research at the price account_balance reports as research_price_usd, held when you submit, charged only when the brief completes and refunded in full if it fails. Free records do not apply.

Read a research job by the research_id research_submit returned: status (queued, running, completed, failed), input, result (the brief, once completed) and error (once failed). Free; only your own account's jobs are visible.

Save a funding-signal alert: a set of funding_search filters plus an https webhook. Each NEW funding event that matches is POSTed to the webhook, signed with the returned secret (header Prospect-Signature: t=..,v1=HMAC-SHA256). Creating is free; each delivered event costs one record ($0.02, free records first), charged only when the webhook answers 2xx. The secret is shown once. Max 20 active per account.

Your funding-signal alerts (without their secrets). Free.

One funding-signal alert: its name, filters, webhook URL, whether it is active and why it was paused (never its secret). Free.

The last 50 deliveries of one alert and their outcome (delivered, retry, failed, no_credit). Free.

Send a signed sample event to the alert's webhook now, to build and verify the receiver. Free; 5 a minute.

Delete a funding-signal alert and its delivery history. Free.

Your credit balance and the free records left this month. Free. Check it before a large paged search.

Report a bug, a wrong or empty field, a missing capability or a question about ProspectAPIs to the team. Free; limited to 10 delivered reports an hour per account (a 429 means wait, do not retry in a loop). Before reporting that a field is wrong or a parameter is ignored, re-run the call with a value that could only match if it were honoured. Put the exact call, what came back and what you expected in details; never include secrets or API keys. Send only when the user agrees.

The live price list: funding records (price per record and free records a month), research (whether it is available and its price per brief) and watchlist deliveries. Free, needs no key. Use it to quote a cost before a large call.

The API's version and deployed build. Free, needs no key.