# ProspectAPIs

> Funding signals and cited prospect research over one REST API, for sales teams and the AI agents that work for them. API base: https://api.prospectapis.com. Auth: Authorization: Bearer pa_live_<48 hex>.

Prices: GET /v1/funding is $0.02 per record returned after 100 free records a month (a search with no match is free). Watchlists are free to manage; each funding round delivered to your webhook costs $0.02, charged only on a 2xx, free records first. POST /v1/research is $0.15 per completed brief, held at submit, charged on completion and refunded if it fails. Prepaid credits, 1:1 with US dollars, from $10.

## Site

- [Home](https://prospectapis.com): what ProspectAPIs does, the two APIs, the MCP server and how a free account starts
- [About](https://prospectapis.com/about): what ProspectAPIs is, where the funding data comes from, how every fact carries a source link, and who builds it
- [Changelog](https://prospectapis.com/changelog): every customer-visible change to the API, the MCP server and the site, by the day it shipped (latest: October 3, 2026, Research briefs add a social section for X and Reddit)

## Endpoints

- GET /v1/funding: $0.02 per record, after 100 free a month
- GET /v1/funding/:id: $0.02 when found, free on 404
- POST /v1/research: $0.15 per completed brief, refunded on failure
- GET /v1/research/:id: free, owner only
- POST /v1/watchlists: free; $0.02 per delivered record
- GET /v1/watchlists: free
- GET /v1/watchlists/:id: free
- DELETE /v1/watchlists/:id: free
- POST /v1/watchlists/:id/test: free, 5 a minute per account
- GET /v1/watchlists/:id/deliveries: free
- GET /v1/account: free
- POST /v1/feedback: free, 10 an hour
- GET /v1/version: free, no key
- GET /pricing: free, no key; the live price list
- GET /health: free, no key; liveness check

## Docs

- [Quickstart](https://prospectapis.com/docs): keys, first calls, authentication, errors, rate limits (60 a minute per key), billing headers (X-Credits-Remaining, X-Free-Records-Remaining), feedback
- [Funding signals API](https://prospectapis.com/docs/funding): GET /v1/funding filters (since, until, round, min_amount_usd, max_amount_usd, company, domain, investor, country) plus limit and cursor; GET /v1/funding/:id; record fields
- [Watchlists API](https://prospectapis.com/docs/watchlists): POST/GET /v1/watchlists, GET/DELETE /v1/watchlists/:id, POST /v1/watchlists/:id/test (5 a minute per account), GET /v1/watchlists/:id/deliveries; webhooks signed with Prospect-Signature: t=..,v1=hex HMAC-SHA256(secret, "t.body"), deduplicate on Prospect-Delivery-Id; a paused watchlist is recreated, not resumed
- [Prospect research API](https://prospectapis.com/docs/research): POST /v1/research with one identifier (domain, website_url, company_name, company_linkedin_url, email, linkedin_url, or person_name with company_name), optional context and purpose (account_research, pre_call, outreach); GET /v1/research/:id; 10 cited sections (company, funding, traction, competitors, news, social, people, risks, fit, regions)
- [Pricing](https://prospectapis.com/pricing)

## MCP server

- [MCP server](https://prospectapis.com/mcp): npm package prospectapis-mcp (MIT), run with `npx -y prospectapis-mcp` and PROSPECTAPIS_API_KEY in its environment; same key, credits and prices as the REST API. Tools: funding_search, funding_get, research_submit, research_get, watchlist_create, watchlist_list, watchlist_get, watchlist_deliveries, watchlist_test, watchlist_delete, account_balance, feedback_send, pricing_get, api_version.


## Blog

- [Blog index](https://prospectapis.com/blog): every post, newest first
- [Sales prospect research: 9 facts to find on an account before the first touch](https://prospectapis.com/blog/sales-prospect-research): Sales prospect research in nine facts: what the account sells, what changed, who decides and why now, each with a source and a date. Do it by hand or by API.

## Policies

- [Terms of service](https://prospectapis.com/terms)
- [Privacy policy](https://prospectapis.com/privacy)
- [Acceptable use](https://prospectapis.com/acceptable-use)

## Contact

Correction or removal requests and legal notices: emma@prospectapis.com