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The CivicMarketplace Partner API gives you read-only access to cooperative purchasing contracts, suppliers, and reference taxonomy data. Use it to integrate contract and supplier information into your own applications, dashboards, and workflows.
Prefer to ask questions in plain English instead of writing code? The AI Connector brings the same data into ChatGPT, Claude, and Microsoft Copilot — no API key required.

What you can do

Search contracts

Query cooperative purchasing contracts by keyword, lead entity, coop, supplier, or city service.

Browse suppliers

Look up supplier details including contact info, location, and associated contracts.

Sync incrementally

Use cursor pagination and updated_since filters to keep your data in sync without full re-fetches.

Reference taxonomy

Access lead entities, cooperatives, and city service categories to filter and organize results.

Base URL

All API requests go to:
Sandbox environments are also available:

Quick example

Request access

Don’t have an API key yet? Apply for partner access.

Get started

Already have a key? Make your first API call.