Finance & Commerce currently groups 188 free APIs on saxi.ai, with strong coverage across Payments, Email, and Observability.
Finance & Commerce APIs in this directory map the broader domain down to concrete developer surfaces. Within this section, the strongest clusters come from Cryptocurrency, Finance, and Business, which makes the page useful both for quick browsing and for comparing adjacent tools in the same market.
For builders, this section is most useful when you know the broad problem space but not yet the exact vendor or protocol. 47 require no auth, 108 use API keys, 18 use OAuth, and 0 expose OpenAPI or Swagger metadata.
Start with high-signal entries such as Census.gov, CoinGecko, and Coinlore and then narrow further using the static topic and capability pages. This page is meant to act as the canonical landing page for finance & commerce APIs rather than as a faceted search result.
