18F

UnknownFreeopen-data

Unofficial US Federal Government API development resources and data interfaces.

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Use it when

Access to diverse federal data

Watch for

Check the docs depth and real endpoint shape before assuming production fit.

First check

Start by exploring the API documentation on the website. No authentication is required to access the endpoints.

Auth

none

CORS

HTTPS

Signup

None

Latency

112 ms

Protocol

REST

Pricing

free

Uptime · 30-day window

Health history will appear here after the next daily check.

About this API

18F provides a collection of unofficial APIs related to the US federal government, offering developers access to various government data sources and services. It serves as a centralized resource for discovering and utilizing open government APIs.

Developers interested in building applications that leverage federal data can use these APIs to access diverse datasets without the need for authentication. This makes it easier to prototype and integrate government information into apps, dashboards, or analysis tools.

While unofficial, the 18F API directory helps streamline access to government data by aggregating multiple APIs in one place, supporting transparency and innovation in public sector software development.

What you can build

1Display US federal government data
2Generate dashboards from government APIs
3Aggregate open government datasets
4Build tools using federal data sources

Strengths & limitations

Strengths

Access to diverse federal data
No authentication required
Centralized API resource

Example request

Generic template — replace <endpoint> with the real path from the docs.

curl http://18f.github.io/API-All-the-X/<endpoint>

Getting started

Start by exploring the API documentation on the website. No authentication is required to access the endpoints.

FAQ

Do I need an API key to use 18F APIs?+

No, 18F APIs do not require authentication or API keys.

Is there a cost to access these APIs?+

No, access to 18F APIs is free.

What kind of data can I get from 18F APIs?+

You can access various US federal government data and services.

Can I use these APIs directly from a browser?+

Yes, since no authentication is required, browser access is possible.

Are these APIs officially supported by the US government?+

No, these are unofficial APIs provided as development resources.

Technical details

CORS: NoHTTPS: NoSignup: NoOpen source: No

Auth type: none
Pricing: free
Protocols: REST
Response time: 112 ms