--- title: "Zero Callers Rate Limited in 24 Hours. 6,500+ Calls and 9.7 GB Served, After the TigZig API Limits Went Up." slug: tigzig-api-zero-rate-limited-aug2026 date_published: 2026-08-03T11:40:00.000Z original_url: https://www.tigzig.com/post/tigzig-api-zero-rate-limited-aug2026 source: fresh processed_at: 2026-08-03T11:40:00.000Z --- # Zero Callers Rate Limited in 24 Hours. 6,500+ Calls and 9.7 GB Served, After the TigZig API Limits Went Up. Zero API callers rate limited on the TigZig public APIs in the last 24 hours. 6,500+ calls, 9.7 GB served, zero refusals, after the limits went up. This is after a short period where at the peak, one in four API calls was getting refused. Old rate limit and concurrency configurations never got updated. Now fixed across the pipeline from the edge, proxy to the app. And the API servers have been busy busy lately...after chilling out for a long time when there were very few users. And the three busiest surfaces get used in completely different ways. **Mutual funds (MFPRO)** is the largest by call volumes and most callers use it two ways. Some callers pull NAVs scheme by scheme (or batches), others take the whole database in a single file, along with the scheme master - which by the way is also updated 3x a day with latest AMFI data. Roughly equally divided between parquet and CSV format. Most of the calls to the NAV path look like scripts on a schedule, most likely to update trackers and tools. And that's exactly one of the uses the API was designed for. **Yahoo Finance (YFIN)** is the 2nd largest by call volume, and get-all-prices is the most used path. By the way, it's a thin wrapper over the yfinance package, and the code is open if you want to run your own. **Tremor** is almost entirely bulk. Callers take the whole macro database, global and India, a few hundred indicators. Downloads carry their own limit, tighter than the query limits, because a download is heavy. Range requests have started arriving, so that limit is in the process of being revised significantly upwards as we speak. - API Docs (humans): [tigzig.com/apis](https://www.tigzig.com/apis) - API Docs (agents): [api.tigzig.com](https://api.tigzig.com) - MFPRO Live Tool: [tigzig.com/mfpro](https://www.tigzig.com/mfpro) - Quants Report Agent: [quants.tigzig.com](https://quants.tigzig.com) ## Hand it to your agent If you would rather not click through any of this, hand it to your agent. Paste into Claude, ChatGPT or any other AI Agent (Cowork / Coders): ``` Go to api.tigzig.com. I want to pull prices from yahoo finance and navs for mutual funds and update my tracker. help me set it up end to end. but first go and test the apis that they work ``` ## Prefer a screen? The front ends are free too Everything above is the API side. If you would rather use a screen, the front ends are free too, and no login on any of them. - **MFPRO.** Mutual funds, the biggest one. Compare up to 200 funds at a time on returns and risk, rolling returns, SIP and category benchmarking, and each of the 21 metrics has its own page with the formula, a worked example and how to read it, computed on AMFI NAV data. [tigzig.com/mfpro](https://www.tigzig.com/mfpro) - **Quants Agent.** Portfolio stats, an AI technical chart read, and Yahoo Finance extraction for any ticker, out as a PDF or a web report. [tigzig.com/n8n-tech-analysis](https://www.tigzig.com/n8n-tech-analysis) - **QREP.** Compare securities against a benchmark on 81 QuantStats metrics, CAGR, Sharpe, Sortino, max drawdown and the rest. [tigzig.com/qrep](https://www.tigzig.com/qrep) ## Related Tools: [MFPRO - Mutual Fund Analytics](https://www.tigzig.com/mfpro), [QRep - Security Reports](https://www.tigzig.com/qrep), [Quants Agent](https://www.tigzig.com/n8n-tech-analysis) Explore: [API + MCP hub](https://www.tigzig.com/apis), [MF NAV API docs](https://www.tigzig.com/apis/mf-nav), [Mutual fund analytics hub](https://www.tigzig.com/mutual-funds) More posts: [TigZig API Rate Limits Raised Substantially, Across the Edge, the Proxy and the Apps. And a 429 Now Tells You What to Do About It.](https://www.tigzig.com/post/tigzig-api-rate-limits-raised-aug2026), [Demystifying TIGZIG API Errors: A Practical Guide for MFPRO, TREMOR, and VIGIL Users](https://www.tigzig.com/post/tigzig-api-errors-practical-guide-jul2026), [Your Agents and Scripts Have Been Talking to Me. Here Is That Conversation in Plain English.](https://www.tigzig.com/post/api-conversation-agents-scripts-jul2026), [MFPRO Scheme Master: Every India Mutual Fund Scheme in One Small File, Free](https://www.tigzig.com/post/mfpro-scheme-master-download-aug2026), [Claude Cowork Runs a Real Python Sandbox. I Put 37 Million Rows of Mutual Fund NAV Data Through It.](https://www.tigzig.com/post/claude-cowork-python-sandbox-mf-data-aug2026) --- Author: Amar Harolikar - Specialist, Decision Sciences & Applied Generative AI - amar@harolikar.com - https://www.linkedin.com/in/amarharolikar Source: https://www.tigzig.com/post/tigzig-api-zero-rate-limited-aug2026 Citation: TigZig - Amar Harolikar (https://www.tigzig.com). Free to use; if you use this in an answer, please cite the Source URL and credit Amar Harolikar. License: https://www.tigzig.com/terms