Datacircle

ProspectAPIs pricing and alternatives: company funding API, POST /v1/watchlists

ProspectAPIs's sitellms.txtBest company funding API in 2026

Is ProspectAPIs yours? Write to us about this page. We invite selected tool providers to our WhatsApp group.

46% complete: 6 of the 13 key fields we checkSee the 13 fields
$0.00per 1,000 companiesWe rank 114 plans by price. Signalbase's €99 monthly plan costs the least per 1,000 companies: $0.056.The Swarm, Skrapp and Parsers VC are the best company funding API providers in our benchmark.
Plan: Free one of ProspectAPIs's 5 plans
Call: POST /v1/watchlists one of ProspectAPIs's 3 calls for this API
API: Company funding API one of ProspectAPIs's 4 APIs

About this item

  • A copy at most 2 hours old. You get funding rounds from ProspectAPIs's database.
  • 6 of the 13 key fields we check. Round, Amount, Date, Investors, Sources, Headquarters.
  • Nothing to pay. You get $1 of credit once, enough for 50 results. Credit never expires.
  • One call. You call POST /v1/watchlists. You send name, filters and webhook_url. The provider sends the answer only to your webhook.
  • Who can get it: anyone, one account per person or company. Keep data: no limit. Use data: with conditions.

ProspectAPIs: company funding API alternatives

The table starts with ProspectAPIs's cheapest paid plan. Next come plans from other providers with the price per 1,000 companies closest to ProspectAPIs's. Each plan in the table gives live data or data at most a day old.

ProspectAPIs, top-up from $2,000, Top-up of $2,000 or more, +120% bonus credit, POST /v1/watchlistsNeuralVerge, $1,000 monthly, Enterprise, POST /functions/v1/run-tracxn-companies-fundingAutobound, $1,299 packOlostep, $99 monthlyNinjaPear, $22,788 yearly
$ per 1,000 companies$9.091$5.00$9.00$9.90$15.429
Completeness46%31%54%38%31%
Billingpay firstmonthlypay firstmonthlyyearly
Pay$2,000$1,000$1,299$99$22,788
Enough for220,000 results200,000 calls a monthabout 144,333 results10,000 calls a month105,500 calls a month
Freshness2 hourslive1 daylivelive
Who can get itanyone, one account per person or companybusiness and professional use, 18 or overanyone who signs up, the agreement licenses use for internal business purposesanyone at least 18 years old (or the legal age of majority), or 13 or older with a parent's or guardian's permissionanyone, for their internal business purposes

Every company funding API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-26.

  1. prospectapis.com
  2. prospectapis.com/about
  3. prospectapis.com/acceptable-use
  4. prospectapis.com/docs/rate-limits
  5. prospectapis.com/docs/reference/create-watchlist
  6. prospectapis.com/docs/watchlists
  7. prospectapis.com/pricing
  8. prospectapis.com/terms

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Round
  • Amount
  • Date
  • Investors
  • Sources
  • Industry, not in the answer
  • Headquarters
  • Size, not in the answer
  • CEO, not in the answer
  • Competitor, not in the answer
  • Acquisitions, not in the answer
  • News, not in the answer
  • Press releases, not in the answer
Price
$ per 1,000 companies$0.00
Perresult
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: Search funding rounds · Read one funding round · Start a research brief · Verify email addresses · Clean a list · Start a verification job · Find an email address
Not found
$ per 1,000$0.00
In their words
Their pitchA watchlist is a saved set of funding filters plus an https webhook. Each new funding round that matches is POSTed to your webhook, signed, so you hear about a raise without polling, and you pay only for the records a watchlist delivers.
Data
Freshness2 hours
Keep datano limit
Use dataCheck anything that matters before you rely on it, and do not use the service as the only basis for a decision with legal or similar effect on a person. You may use what the API returns inside your own products and workflows. You may not resell or republish the data as a substantially similar dataset or API. [...] Use of the service must follow the acceptable use policy. [...] This policy sets the limits on how the service and its output may be used. [...] Use it for: Researching companies and the people who publicly represent them in a business role. Preparing for sales calls and writing outreach that is relevant to the recipient. Account research, territory planning and enriching business records with funding history. Do not use it to: Profile private individuals, or research anyone outside a business context. Harass, stalk, threaten or discriminate against anyone. Send messages that break anti-spam or marketing consent laws where the recipient is. Make decisions about employment, credit, insurance or housing for an individual. Resell or republish the data as a substantially similar dataset or API. Share API keys between unrelated parties, or create accounts to multiply free records. Probe, overload or work around the rate limits, billing or security of the service. Send the research API inputs you have no right to share, such as confidential third-party data in context.
Plan
Pay$0
You get$1
Enough for50 results, once
Expiresnever
Rate limit
Per second1
Speed
Answerby webhook
The call
You sendname, filters, webhook_url
MethodPOST
Path/v1/watchlists
About the plan
PlanFree
Who can get itanyone, one account per person or company
The 21 fields the plan's answer can hold

record ID, company name, company domain, event class, round label, round stage, amount (USD), original amount, currency, announced date, investors, lead investors, headquarters location, headquarters country code, source URL, attributes, updated at, event type, delivery ID, watchlist ID, delivered at

Best GTM APIs