Data sources & attributions

FundTrace displays facts extracted from public primary sources; every rendered number links to the document it came from. Indicators are automated observations from public filings — deterministic rules with document-linked evidence and benign explanations surfaced first, never conclusions.

• ProPublica Nonprofit Explorer API

  Organization discovery and filing summary financials

  ProPublica Data Terms of Use — attribution required

• IRS Form 990 e-file XML

  Filings, grant schedules (I/F), related parties (L/R), officers, PF grants

  Public domain (US government work)

• USAspending.gov

  Federal grant awards

  Public data

• UK Charity Commission Register

  Charity details, annual-return financials (GBP as filed), trustees

  Contains public sector information licensed under the Open Government Licence v3.0

• EU Financial Transparency System

  European Commission grant commitments (EUR as published)

  © European Union — reused under the Commission's reuse policy, with attribution

• European Central Bank reference rates

  Daily FX reference rates for labeled display conversion only

  Free reuse with attribution

• Organization-published reports (ANBI and similar disclosures)

  Declared-funder statements with page citations

  Publicly published disclosures, archived for provenance, quoted minimally

Not used: commercially licensed nonprofit data (e.g. Candid), Schedule B donor lists (never ingested), personal addresses (never extracted). FundTrace is open source under the Apache License 2.0.