FactSet Financial Data API
FactSet REST APIs for institutional-grade financial data and analytics platform. Enables AI agents to manage equity fundamental data retrieval including income statement, balance sheet, and cash flow for financial modeling, handle market data including real-time and historical price, volume, and corporate actions data, access fixed income data including bonds, yield curves, and credit ratings, retrieve global company entity and identifier mapping (CUSIP, ISIN, SEDOL, ticker), manage portfolio analytics including attribution, risk, and performance measurement, handle estimates and consensus data from sell-side analyst coverage, access private equity, M&A, and deal data for investment banking and PE analytics, retrieve supply chain and alternative data for investment research, manage ESG scores and sustainability metrics for responsible investment, and integrate financial data with portfolio management, risk, and trading systems.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Institutional financial data. SOC2, MiFID2, GDPR. OAuth2. US/EU. Securities and fundamental data.
⚡ Reliability
Best When
An asset manager, hedge fund, or investment bank using FactSet wants AI agents to automate fundamental data retrieval, estimates analysis, portfolio analytics, identifier mapping, and financial research workflows.
Avoid When
LICENSING RISK: FactSet data is licensed per use case and user; redistributing FactSet data in downstream products without appropriate licensing violates data agreements. Real-time data distribution requires exchange-specific data licenses beyond FactSet subscription. AI model training on FactSet data may require specific licensing terms beyond standard subscription. Investment decisions based on AI analysis of licensed data require disclosure review.
Use Cases
- • Retrieving company fundamentals from financial modeling agents
- • Accessing consensus estimates from investment research agents
- • Analyzing portfolio attribution from risk management agents
- • Mapping securities identifiers from data management agents
Not For
- • Retail investor tools without institutional data licensing requirements
- • Real-time trading without appropriate market data licensing
- • Simple stock screening without comprehensive financial data needs
Interface
Authentication
FactSet uses OAuth 2.0 and API key (FactSet authentication). Developer portal at developer.factset.com. Open-source SDKs on GitHub (factset). No webhooks — polling and batch for data updates. REST API with JSON. Norwalk, Connecticut HQ. Public (FDS NASDAQ). FactSet Developer Community with extensive documentation.
Pricing
Norwalk, Connecticut. Founded 1978. Public (FDS NASDAQ). $2.0B+ annual revenue. Financial data and analytics for institutional investment. 8,000+ clients including 200,000+ investment professionals. Strong in buy-side asset managers and investment banking. Competes with Bloomberg and Refinitiv (LSEG) for institutional financial data.
Agent Metadata
Known Gotchas
- ⚠ LICENSING RISK: FactSet data redistribution and AI training use cases require specific data licensing beyond standard subscription; review data agreement before automated downstream use
- ⚠ Exchange data licensing — real-time price data from specific exchanges requires exchange data licenses beyond FactSet subscription; verify exchange-specific license entitlements
- ⚠ Identifier mapping complexity — global securities use multiple identifiers (CUSIP, ISIN, SEDOL, ticker); build robust identifier resolution before cross-system financial data integration
- ⚠ Point-in-time data for backtesting — use point-in-time (PIT) data endpoints for quantitative backtesting; current data includes restated financials that create look-ahead bias
- ⚠ No webhooks — data update events require polling; batch download endpoints are more efficient for large data refreshes than per-security polling
- ⚠ Consensus estimates vintage — analyst estimates data has as-reported and revised history; specify estimate vintage carefully for time-series analysis to avoid survivorship bias
Alternatives
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Scores are editorial opinions as of 2026-03-06.