# Tigzig APIs - Reading the Logs, Shipping the Fixes. Status Page Live, R2 Downloads, Self-Correcting 4xxs. Published: 2026-07-08 Release note on what shipped for the Tigzig public APIs in the last 48 hours, driven by daily log reading (200s tell what is working, 4xx and 5xx tell what to fix next). Four things live: (1) common-guess coercion - if a caller or their AI guessed /series instead of /nav or sent start= instead of since=, those now quietly work with one canonical spec still in the docs; (2) every 4xx now returns a help block linking the docs page and the machine catalog so an AI agent can self-correct without the human stepping in; (3) full-database downloads (100 to 500+ MB files) now served from Cloudflare R2, noticeably faster than before; (4) status page live and probed every minute at status.tigzig.com - downtime rings the author's phone. Underway: fallback to a secondary server if the primary goes down. Second half of the post is a practical errors-and-fixes list: 404 (scheme code guessing/enumeration - use /search?q=fund-name or an ISIN from the broker statement, both work), heavy parallel bursts now return proper 429s instead of the occasional 503, 429 rate limits (300/min per public IP with X-RateLimit headers so scripts/agents can pace themselves), 400 validation (YYYY-MM-DD dates, 50-scheme bulk cap, scheme= for one vs schemes= for many), and every failure comes back as JSON with an error code + docs_url pointing straight at the fix. Polling tip: send If-Modified-Since and you get a 304 on days AMFI hasn't published (weekends, holidays) so scripts can skip re-downloading history they already have. Single-image release post - status page screenshot. ## Where to find the full content - HTML page (full text, image deck, links): https://tigzig.com/post/tigzig-apis-status-page-live-jul2026 - Markdown of the HTML page: send GET https://tigzig.com/post/tigzig-apis-status-page-live-jul2026 with header `Accept: text/markdown` ## Tags mutual-funds, infrastructure --- Note: this is a short text-only post (release announcement / brief commentary). The full body lives at the HTML page URL above - there is no deck source or PDF transcript for this one. The image referenced in the body (if any) is a generic illustration, not analytical content. ## Related Tools: [MFPRO - Mutual Fund Analytics](https://www.tigzig.com/mfpro), [Quants Agent](https://www.tigzig.com/n8n-tech-analysis) Explore: [Full API + MCP catalog](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: [Free Mutual Fund NAV API for India - Revamped. AI Ready. 18,000+ Schemes Since 2008 from AMFI.](https://www.tigzig.com/post/tigzig-mf-nav-api-revamp-jul2026), [Copy Page as Markdown - Every Page on Tigzig.com Now Hands Your AI Full Context in One Click.](https://www.tigzig.com/post/tigzig-copy-page-button-jul2026), [Free AMFI Mutual Fund NAV API for India - Historical NAV by Scheme Code, No Key](https://www.tigzig.com/post/free-mutual-fund-nav-api-india) --- 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-apis-status-page-live-jul2026 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