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Municipal Finance API vs Plaid API

Same instrument, two spec sheets — measured, not claimed.

APIMunicipal Finance APINEW—Plaid APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Municipal Finance API vs Plaid API: common questions

Which is more reliable, Municipal Finance API or Plaid API?

On our scheduled checks, Plaid API leads on measured uptime — Municipal Finance API at —% versus Plaid API at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Municipal Finance API and Plaid API need an API key?

Municipal Finance API needs no key, while Plaid API requires a free API key. If you want to start calling without signup, reach for Municipal Finance API first.

Can I call Municipal Finance API and Plaid API from the browser?

Yes — both Municipal Finance API and Plaid API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Municipal Finance API and Plaid API free for commercial use?

Municipal Finance API has unclear commercial terms, and Plaid API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.