Compare 79 verified Development Tools APIs by pricing, documentation, and sandbox support.
Mono Connect API
Open banking infrastructure for real-time financial data, DirectPay, DirectDebit, GSM, disbursements & KYC verification
Fincra API
CBN PSSP-licensed African payment gateway. Checkout, virtual accounts, direct debit, and cross-border payments across 50+ currencies and 150+ countries.
Handle local deposits & withdrawals for FX brokers in Nigeria and Uganda
Manage wallets, virtual accounts & QR payments for fintechs and ERPs
Issue virtual accounts, send payouts & verify BVN or NIN identities
Search 100M+ curated businesses, venues and points of interest globally
Convert addresses to coordinates and back for free
Test frontends with free fake posts, users, comments and photos data
Generate custom mock endpoints with your chosen status, headers and body
Simulate user login, registration and CRUD for testing frontends
Inspect your own HTTP requests reflected back as JSON
Create mock HTTP endpoints instantly & inspect requests in real time
Predict nationality from a first name
Render diagrams from text across 25+ formats like Mermaid & PlantUML
Estimate a website's carbon footprint from its data usage
Manage crop planning, farm records & market prices in one API
Search business listings & reviews across the US, Canada and Europe
Access node infrastructure for Polkadot, Kusama & Substrate chains
Accept crypto payments & auto-settle to Nigerian bank accounts
Validate EU VAT numbers & retrieve VAT rates for free
Validate & autocomplete addresses across 240+ countries including Nigeria
Access verified B2B software reviews & buyer intent data
Track athlete activity & fitness data from Strava's community
Identify the programming language of any code snippet
Validate EU VAT numbers & retrieve current VAT rates
Access technical specs for thousands of mobile phones
Create, read & sync events with Google Calendar
Manage Outlook calendar events & meeting invitations
Read & write structured data in your Airtable bases
Generate disposable email addresses for testing & spam protection
Access electric vehicle battery, range & performance data
Generate GraphQL & REST APIs instantly from your database schema
Test apps against a free fake REST & GraphQL backend
Convert text into natural-sounding speech audio
Push, pull & manage container images on Docker Hub
Automate Azure Boards, Repos, Pipelines & Artifacts
Query package metadata, versions & downloads from npm
Generate secure random strings, passwords & UUIDs
Scrape any website with automatic proxy rotation
Stream DJ mixes & radio shows from Mixcloud
Access tarot card meanings & readings
Sign, store & share documents electronically
Price device insurance plans & manage claims
Schedule shifts & manage workforce rosters in real time
Sell tickets for events, cinema, buses & hotels
Collect & disburse mobile money across 14+ African countries
Aggregate bank & mobile money data across Africa
Exchange currency & process cross-border payments for businesses
Transfer money & pay bills across multiple African currencies
Send & manage webhooks reliably with automatic retries
Send, receive & convert money across Africa and beyond
Send payouts, collect payments & issue cards globally
Access Nigerian states, LGAs & population data
Access JAMB, WAEC & NECO past questions and answers
Run large-scale SQL analytics on AWS's managed data warehouse
Test JavaScript code with built-in mocking, coverage & snapshots
Shorten links under your own branded domain with click analytics
Shorten & track links with the web's most recognized shortener
Shorten links instantly with a single request, no account needed
Automate SMS and chat workflows via an Android phone gateway
Global cloud infrastructure provider.
Build web apps without code.
Video streaming infrastructure.
Cloud video transcoding.
Manage mobile app subscriptions effortlessly.
Comprehensive mobile and web backend.
Track software errors in real-time.
Complete open-source backend-as-a-service.
DummyJSON - Fake products, users, carts and auth data
Fake Store API - Fake e-commerce products and carts
Random User API - Random user profiles with photos
Postman Echo - Echo service for testing HTTP clients
Mockaroo API - Realistic fake data in JSON, CSV, SQL
GitHub REST API - Repos, issues, pull requests and users
PyPI JSON API - Package metadata and release files
Stack Exchange API - Stack Overflow questions, answers and users
Forem (DEV) API - DEV articles, comments and users
Libraries.io API - Open source package and dependency data
crates.io API - Rust crate metadata
Microlink - Link previews, screenshots and metadata
API Ninjas - Dozens of small utility APIs (nutrition, jokes, validation)
