Find NYC Open Data

Search the city's public datasets, see when each one was last updated, and download the data.

For programs and agents

Everything on this host answers JSON over HTTPS with no key and no account. Point your agent at the front door, then read the contract:

llms.txt — where to start
agents.md — the guide — quickstarts and the join algebra worked end to end
surfaces.json — every page and endpoint with its params
api/openapi.json — the OpenAPI 3.1 contract — every route, schema, and cap

Read-only SQL: POST one SELECT to /api/query, tables addressed as pg_ro.<schema>.<table>. Caps: 50,000 rows returned, 30-second budget, 25,000-byte body.
MCP: POST JSON-RPC 2.0 to /api/mcp: 11 tools over typed arguments, no SSE, no sign-in. Add this host's /api/mcp to Claude or any MCP client as a custom connector.
Joins: /api/dimensions lists the conformed keys, /api/ontology binds columns to them, and POST /api/relate runs a two-dataset join with coverage and provenance.
Feeds: /data.json (Project Open Data 1.1) and /dcat.jsonld (DCAT-US 3).

Rate-limited: a 429 carries Retry-After in seconds. Send a real User-Agent that names your client.

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For programs and agents

Everything on this host answers JSON over HTTPS with no key and no account. Point your agent at the front door, then read the contract:

llms.txt — where to start
agents.md — the guide — quickstarts and the join algebra worked end to end
surfaces.json — every page and endpoint with its params
api/openapi.json — the OpenAPI 3.1 contract — every route, schema, and cap

Read-only SQL: POST one SELECT to /api/query, tables addressed as pg_ro.<schema>.<table>. Caps: 50,000 rows returned, 30-second budget, 25,000-byte body.
MCP: POST JSON-RPC 2.0 to /api/mcp: 11 tools over typed arguments, no SSE, no sign-in. Add this host's /api/mcp to Claude or any MCP client as a custom connector.
Joins: /api/dimensions lists the conformed keys, /api/ontology binds columns to them, and POST /api/relate runs a two-dataset join with coverage and provenance.
Feeds: /data.json (Project Open Data 1.1) and /dcat.jsonld (DCAT-US 3).

Rate-limited: a 429 carries Retry-After in seconds. Send a real User-Agent that names your client.

NYC Agencies and Governance Organizations

Office of Technology and InnovationUpdates: AnnuallyPublisher updated: Oct 10, 2026

This is a dataset of New York City agencies, offices, and other organizations with NYC-specific governance functions. These include advisory or regulatory organizations, public benefit or development…