A CURATED DIRECTORY OF FINANCIAL TOOLS AND RESOURCES

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Quants/Developers

52 tools for quants/developers - 42 with free plans

Data you can trust, docs you can ship with, and environments to prototype without wrestling glue code. Backtesting, APIs, and pipelines built to be extended.

Editor picks if you are skimming: EODHD, Fiscal.ai, GuruFocus, Interactive Brokers (IBKR), Portfolio123. Every listing links to source notes, pricing, and coverage so you can judge fit in minutes.

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Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.