Colorado Information Marketplace

API

Open data API for Colorado State Government datasets

Overview

The Colorado Information Marketplace API provides RESTful access to thousands of open datasets from Colorado State Government agencies (e.g., demographics, education, environment, public safety). Responses are primarily JSON, with bulk export options in CSV/Excel. Endpoints support filtering, sorting, and querying to refine results. Use cases include developers building resident-facing apps (water quality trackers), researchers analyzing workforce trends, journalists investigating policy impacts, and businesses leveraging economic indicators to inform decisions. It integrates with data visualization tools for easy insights.

Example Integration (JavaScript)

script.js JS


fetch('https://data.colorado.gov/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON/CSV support
No auth required
Thousands of datasets
Filtering/querying capabilities

Frequently Asked Questions

? Is Colorado Information Marketplace free to use?

Yes, all datasets and API access are completely free for public use.

? Does it require an API Key?

No, basic API access does not require an API key; bulk operations may have additional guidelines but no key is needed.

? What is the response format?

API queries return JSON by default; bulk data can be exported in CSV, Excel, or JSON formats.

Top Alternatives

Tool Info

Pricing Free

Category Government

Platform Public API

Pros

⊕ Free public access
⊕ Wide dataset coverage
⊕ Regular updates
⊕ Bulk export options

Cons

⊖ Rate limits for high-volume requests
⊖ Some datasets lack complete metadata
⊖ Limited advanced query documentation