Best Open Banking & Financial Data API Providers 2026

DisclosureApideck publishes this report and appears in it; the author is Apideck’s founder. Some vendors here — including Apideck and American Express Sync — are populated from the vendor’s own published customer list, not only from buyer-side disclosures. Those counts reflect vendor-disclosed customers and aren’t directly comparable to vendors counted from buyer disclosures alone — which can affect relative ordering between vendors whose lists we ingested. Read this as a coverage map, not an audited scoreboard. Unified-API providers are also structurally under-disclosed (they sit in front of customer data, not on subprocessor lists), so most vendors here have more reach than the leaderboard shows.

Full ranking

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Regional breakdown

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