United States business verification API: best providers in 2026
DOT Open Data (FMCSA census, authority) is the best United States business verification API in our benchmark. DOT Open Data (FMCSA census, authority) is free. DOT Open Data's plan covers companies in the United States only.
Top United States business verification API providers by score
| Rank | Provider and plan | Overall score | Accuracy score | Median answer time | $ per 1,000 companies |
|---|---|---|---|---|---|
| 1 | DOT Open Data (FMCSA census, authority), free, No application token, for the United States only · dev.socrata.com | 82.7 | 77 | under 0.1 s | $0.00 |
| 2 | MORVS, free, for the United States only · morvs.ai | 82.7 | 77 | under 0.1 s | $0.00 |
| 3 | Pyxmark, free, for the United States only · mcp.pyxmark.com | 82.3 | 77 | 1.0 s | $0.00 |
| 4 | datahub.transportation.gov, free, No application token, for the United States only · datahub.transportation.gov | 81.6 | 77 | 0.11 s | $0.00 |
| 5 | CharityAPI, $15 monthly, Paid, for the United States only · charityapi.org | 78.1 | 59 | 0.10 s | $0.0021 per 1,000 companies when you call at the rate limit all month. CharityAPI adds no charge per call to the $15 monthly price. |
| 6 | data.cms.gov, free, for the United States only · data.cms.gov | 75.9 | 77 | 0.40 s | $0.00 |
| 7 | NPPES NPI Registry, free, for the United States only · npiregistry.cms.hhs.gov | 75.8 | 59 | under 0.1 s | $0.00 |
| 8 | ProPublica Nonprofit Explorer, free, for the United States only · projects.propublica.org | 75.0 | 59 | 0.11 s | $0.00 |
| 9 | FDIC BankFind, free, API key, for the United States only · api.fdic.gov | 70.8 | 59 | 0.23 s | $0.00 |
| 10 | Datakoot, $10 monthly, for the United States only · datakoot.com | 54.1 | 52 | 0.34 s | $0.20 |
| 11 | Ysaere, top-up · api.ysaere.com | 52.9 | 71 | 1.5 s | $100.00 |
How we tested
We called business verification APIs on lists of companies. We made one list for each country, US state, county, town or city. We made two lists for Israel. We have a list of charities in England and Wales too. We have a list of US transport companies and a list of US health care companies. We have a list of US investment advisers, a list of US nonprofits and a list of US banks. We have a list of US public companies too. We show how often each API is right about whether a company is registered, and how long each lookup takes.
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- Business verification API: best providers in 2026
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