Developer APIs

Supabase

Developer APIs

Build production-grade applications with a Postgres database, Authentication, instant APIs, Realtime, Functions, Storage…

Appwrite

Developer APIs

Build like a team of hundreds with Appwrite

TwitterAPIs

Developer APIs

TwitterAPIs is the cheapest pay-as-you-go Twitter and X API. $0.0008 per call returns ~20 tweets ($0.04/1,000). No subscription, no X developer account.

UnixLi

Developer APIs

Parse any timestamp format, decode JWTs, convert timezones, generate code snippets for 10 languages. Free, no signup, 100% local.

IPDetails.io

Developer APIs

The most accurate and free IP Geolocation API for developers. Detect proxies, VPNs, and get real-time threat intelligence.

TokenGate

Developer APIs

Access GPT, Claude, Gemini, DeepSeek and Grok through one OpenAI-compatible API. Get a $20 free starter credit on your new account and pay as you go in USDT.

App2Api

Developer APIs

Describe a workflow in your app in plain English and get back a runnable call — the endpoint plus its full auth chain. Free beta.

odds-api

Developer APIs

Sports betting odds API for bookmaker feeds, betting apps, dashboards and models. Access 125+ bookmakers with docs, pricing and live updates

Grabbit

Developer APIs

Send a URL, get a hosted screenshot. One line to install, one POST to capture. Flat pricing at $0.002 a grab (25,000 for $50/year), a one-line CLI, and a hosted MCP server.

Podcast Transcript API for AI Agents

Developer APIs

Podcast transcripts as clean Markdown with real speaker names. Fetch one episode or a show's whole back catalog. No subscription.

Farm.js

Developer APIs

Farm.js is the framework for modern integrated apps, unifying routing, typed APIs, middleware, integrations, docs, and deployment.

API.market

Developer APIs

API marketplace and hosted MCP gateway for AI agents

KaiGPT

Developer APIs

KaiGPT 中转站面向开发者提供 OpenAI、Claude 等 AI API 接入与多模型网关能力，主流模型按 0.1 倍率计费（官方价的 10%），包含 Base URL、API Key、用量与排错文档；具体模型和可用性以控制台及状态页为准。

SubmitSafe

Developer APIs

Free automatic system check for Google Play listings, plus a manual audit by a specialist with moderation experience.

Snap API

Developer APIs

Capture any website with a single API call. Free tier, inventory dashboard, and distraction-free screenshots.

StopReg

Developer APIs

Prevent fake signups instantly. Detect disposable emails and spam domains in real-time with StopReg.

TickerLayer

Developer APIs

Build with simple REST APIs and WebSocket streams for real-time and historical market data across stocks, forex, crypto, commodities, indices, and ETFs.

Routebase

Developer APIs

Design, mock, test, and document APIs from one living spec. A full test runner is built in, with suites, ten auth schemes, and a CLI for CI. No OpenAPI needed.

DNSMint

Developer APIs

Your agent mints its own HTTPS endpoint, on its own dedicated domain. One API call: no registrar, no zone to configure, no person in the loop.

MockMe

Developer APIs

Create temporary mock APIs instantly or build persistent endpoints for your development needs.

Powabase

Developer APIs

Backend for AI apps. Per-project Postgres, auth, storage, realtime, plus a RAG pipeline and agent runtime.

Adanos Software

Developer APIs

Sentiment and attention data for stocks and crypto from Reddit, X, news and Polymarket in one API.

LLMFly AI

Developer APIs

Use GPT, Claude, Gemini and Grok through one OpenAI-compatible API. Check model rates, create a key, and make your first request.

Chuks Programming Language

Developer APIs

Simple. Fast. Expressive. A modern programming language with a built-in VM, AOT compiler, and rich standard library.