SEC EDGAR Data vs Indian Mutual Fund
MFapi.in serves free, keyless access to India's mutual-fund NAV history — scheme metadata and full daily NAV time series for 10,000+ schemes registered with AMFI, refreshed six times a day from AMFI's own bulk feed. Responses are plain JSON with no authentication, rate limiting, or usage caps, and the project publishes an interactive Swagger UI covering every endpoint. A live Origin-header probe against the real API host (api.mfapi.in) confirmed CORS is enabled, returning `Access-Control-Allow-Origin: *` — resolving the previously-stored `unknown`.
Compare →SEC EDGAR Data vs Portfolio Optimizer
Portfolio Optimizer is a free, no-signup Web API implementing modern-portfolio-theory algorithms — mean-variance and minimum-variance optimization, risk and performance analytics, backtesting, and factor-model tools — over JSON, so it can be called from Python, Excel, Google Sheets, or any HTTP client without an SDK. The homepage explicitly advertises free access with no registration required, and a live test against a real optimization endpoint (api.portfoliooptimizer.io) returned `Access-Control-Allow-Origin: *` on both a route-not-found and a malformed-payload response, confirming CORS is enabled; the same responses carry a `WWW-Authenticate: Key` header hinting at an optional key for higher throughput, though the observed default rate limit is a modest 1 request/second.
Compare →SEC EDGAR Data vs Razorpay IFSC
Razorpay's IFSC Toolkit is a free, keyless lookup over India's Indian Financial System Code directory, compiled from RBI and NPCI public data, returning the bank, branch, address, and supported payment rails (NEFT/RTGS/IMPS/UPI) for any given code. The underlying dataset and API server are open-sourced on GitHub, with official client libraries for Node, PHP, Ruby, and Go.
Compare →SEC EDGAR Data vs CongressInvests
CongressInvests tracks U.S. congressional stock trades from official Senate EFD and House Clerk disclosures, refreshed every six hours, with per-ticker trade history, a global feed, and a Pro-only AI-generated trend narrative (sentiment plus notable member patterns, cached 24 hours per ticker). The core REST API is keyless for up to 100 requests/day; a $29/month Pro plan adds an X-Api-Key header for webhook alerts, the AI trend endpoint, and higher limits. It ships official Python and Node.js SDKs and markets itself against paid-only competitors like QuiverQuant and Unusual Whales.
Compare →