SF311 and its Open311 Write API
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
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Outside apps can write into the city's work queue, not just read from it. San Francisco set 12 July 2025 as the shutdown date for that write API, then let it stand; it was still answering in July 2026.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 9 more in San Francisco · 🪪 Digital government guide · 🏛️ Governance projects
San Francisco opened 311 in March 2007, folding more than 1,000 city phone numbers into one line. In May 2010 it agreed the Open311 GeoReport v2 specification jointly with Washington D.C., whose 311 API the standard grew out of, so outside apps can write into the city's work queue rather than only read from it. Every case since 2008 is published nightly under a public-domain dedication. The city set 12 July 2025 as the shutdown date for that write API, then let it stand; it was still returning live requests in July 2026.
📊 Impact
872,426 service requests created in 2025, counted directly from the city's own open dataset: 534,032 through a mobile app (61%), 181,123 on the web (21%) and 149,757 by phone (17%), with 6,139 from agency integrations and 830 by Twitter or email.
🎓 Lesson
An API that only reads makes watchers; one that lets outsiders write makes competitors, and the city moved to shut its write endpoint the year a volunteer app began outfiling the official one. Its own Controller had already told SF311 to tighten internal controls so that requests are accurately addressed and its published reports can be relied on.
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📎 Cite this project
1001 Smart Cities (2026). “SF311 and its Open311 Write API” — San Francisco, United States. The Smart City Atlas. https://1001smartcities.org/projects/sf-311/ (last verified 2026-07-26). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.
