List of free API tool/service for developer👇🏽
Hasura
Instant GraphQL APIs for your data | Join data across databases, GraphQL & REST services to build powerful modern applications
Tag: API
1 GB data pass-through
60 requests/minute
Directus
Open-Source Data Platform — Directus wraps any SQL database with a real-time GraphQL+REST API and an intuitive app for non-technical users. 100% JavaScript.
Tag: Database, SQL, GraphQL, API, CMS
Completely Free and Open-Source Works with any New or Existing SQL Database REST & GraphQL API Powerful Content/Data/Asset Management Completely Flexible Content Structure

Unlimited bases 1,200 records per base 2GB of attachments per base Grid, calendar, kanban, form, & gallery views
Apify
Automate anything you can do manually in a web browser, and run it at scale. Turn any website into an API and make the web work for you!
Tag: API
Free $5 platform credit usage Data retention 7 days Memory actor 4 GB
Open Source
Mockoon
Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.
Tag: mock, API
GraphCDN
Scale, inspect & protect your GraphQL API. Cache your queries at the edge, get insights into its usage and protect it from malicious queries.
Tag: CDN, API, graphql
5m requests per month for free Unlimited users Unlimited APIs
Appwrite
Appwrite provides web and mobile developers with a set of easy-to-use and integrate REST APIs to manage their core backend needs.
Tag: API, database, storage, authentication, serverless
Open Source
mockAPI
MockAPI is a simple tool that lets you easily mock up APIs, generate custom data, and preform operations on it using RESTful interface. MockAPI is meant to be used as a prototyping/testing/learning tool.
Tag: mock-data, API
Project Resources per project

Strapi
Strapi is the leading open-source headless CMS. It’s 100% JavaScript, fully customizable and developer-first.
Tag: API, CMS
Free forever (open source) REST & GraphQL API Highly Flexible Content Structure Powerful Content Management
Encore
The Encore backend framework let's you go from idea to running API in production in minutes, with no servers to manage. Get productive with Encore.
Tag: hosting, serverless, API, tracing, hosting-dynamic
Backend development platform Cloud hosting Distributed tracing Secrets management Generated API documentation

ExchangeRate-API
ExchangeRate-API is a free & Pro currency conversion API for getting the latest foreign exchange rates in an easy to use JSON format.
Tag: API
Open Access: Rate Limited API Key: 1 500 API requests p/m 24 Hour Data Updates
NoCodeAPI
Save time and money to set up your third party application without code and backend like google sheet, airtable, google analytics, twitter, instagram, goodreads, calendly, xml, rss to JSON, Slack, currency, 50+ more.
Tag: API, nocode
300 requests/month Paused after 1 week inactivity

Stream
Scalable & fast API for building social networks, activity feeds, activity streams and chat apps.
Tag: chat, feeds, api
5 or less team members Less than $10k in monthly revenue Less than $100k in funding
Json Server
Get a full fake REST API with zero coding in less than 30 seconds (seriously) with your own JSON file
Tag: API, database
Public API List
A collective list of free APIs. Contribute to public-apis/public-apis development by creating an account on GitHub.
Tag: api, other-list

Removebg
Remove image backgrounds automatically in 5 seconds with just one click. Don't spend hours manually picking pixels. Upload your photo now & see the magic.
Tag: API, image
Free to use via web, via API 50 free previews

Sheety
Turn spreadsheets into powerful APIs to rapidly develop prototypes, websites, apps and more.
Tag: API, database
Unlimited Projects Read, Write, Edit and Delete 200 requests per month 100 rows per sheet
3 personal projects 1 project collaborator 1 team Unlimited team members 1 team project

Open Source Free updates forever API Client Design APIs Plugins Community Support (Github and Slack)

Flatbase
Query your CSV and JSON files with SQL. Flatbase is the data science platform for developers. Upload files, write SQL, visualize results, and share with collaborators.
Tag: sql, json, api, playground
Up to 3 workspaces Share with up to 3 teammates

Mocko
Proxy your API, choose which endpoints to mock in the cloud and inspect traffic, for free. Speed up your development and integrations tests.
Tag: mock, dummy, api, rest, fake
Proxy your API, choose which endpoints to mock in the cloud and inspect traffic

postman
Postman makes API development easy. Our platform offers the tools to simplify each step of the API building process and streamlines collaboration so you can create better APIs faster.
Tag: API, testing
Unlimited shared requests for up to 3 team members

