# Free Web Development APIs

Page: https://free-web-services.com/web-services/web-development/

APIs for web developers: error tracking, uptime and broken-link monitoring, on-call alerts, forms and code hosting, plus hosting, testing, validation, security, SEO and URL shorteners in the subcategories.

## Subcategories

- [Blogs and publishing](https://free-web-services.com/web-services/web-development/blog/index.md): Publish posts, read blog platforms and tell search engines about new pages
- [Data validators](https://free-web-services.com/web-services/web-development/validators/index.md): Validates data of different types
- [Hosting and storage](https://free-web-services.com/web-services/web-development/hosting/index.md): Servers, file storage and file uploads in the cloud
- [Security related services](https://free-web-services.com/web-services/web-development/security/index.md): Encryption and coding services
- [SEO and site checks](https://free-web-services.com/web-services/web-development/seo/index.md): Speed, search ranking and archive checks for websites
- [Testing and mock data](https://free-web-services.com/web-services/web-development/testing/index.md): Test HTTP clients and fill your app with fake sample data
- [URL shorteners](https://free-web-services.com/web-services/web-development/url-shorteners/index.md): Make short links and count their clicks

## Services

| Service | API key | Formats | Free use |
|---|---|---|---|
| [Datacircle API](https://free-web-services.com/web-services/web-development/datacircle.md) | Not needed | JSON | Free, no key needed, at up to 60 calls a minute from one IP address. |
| [GitHub REST API](https://free-web-services.com/web-services/web-development/github-rest-api.md) | Not needed | JSON | Free; unauthenticated requests are limited to 60 per hour, a free personal access token raises that to 5,000. |
| [HQAPI](https://free-web-services.com/web-services/web-development/hqapi.md) | Needed, free | JSON | - |
| [jsDelivr Data API](https://free-web-services.com/web-services/web-development/jsdelivr-data-api.md) | Not needed | JSON | Free, no key needed; contact jsDelivr before sending more than about 100 requests per minute for long periods. |
| [NoMore404](https://free-web-services.com/web-services/web-development/nomore404.md) | Needed, free | JSON | Free plan with five monitors checked every five minutes, as long as you sign in at least once every six months; paid plans from 9 euro per month add more monitors and checks. |
| [PagerDuty](https://free-web-services.com/web-services/web-development/pagerduty.md) | Needed, free | JSON | Free plan for up to 5 users with one on-call schedule and 100 SMS or phone notifications per month; paid plans for larger teams. |
| [Sentry](https://free-web-services.com/web-services/web-development/sentry.md) | Needed, free | JSON | - |
| [SoldFetch](https://free-web-services.com/web-services/web-development/soldfetch.md) | Needed, free | JSON | Free plan: 100 free units, no card required; paid plans from $9/month. |
| [StatusCake](https://free-web-services.com/web-services/web-development/statuscake.md) | Needed, free | JSON | Free plan with 10 uptime monitors checked every 5 minutes, plus one page speed, one SSL and one domain monitor; paid plans for faster checks and more monitors. |
| [Wufoo Form Builder API](https://free-web-services.com/web-services/web-development/wufoo-api.md) | Needed, free | JSON, XML | Free with a Wufoo account; the limits depend on your Wufoo plan. |

## Questions

**Which free web development APIs work without an API key?**  
Datacircle API, GitHub REST API and jsDelivr Data API work without a key, according to their documentation. Most keyless services ask you to keep the number of requests reasonable, and some ask for a User-Agent that names your app.

**Are these web development APIs really free?**  
The services here can be used without paying, at least on a free plan or free tier, often with limits such as a number of requests per day or non-commercial use only. The table above quotes what each service says about its free use; check the provider's own terms before you rely on it.

**How up to date is this list?**  
The address of every service is checked about once a week, and services that stop working or stop being free are removed. This list last changed on November 12th, 2026.