Developer API Directory
Every developer API in our index, ranked by agentic readiness. All entries expose at least one programmatic signal agents can discover at build time.
4308
Sites Indexed
37
Avg Score
1322 entries in this directory
SonarQube Cloud: Scalable AI Code Verification | Sonar
sonarcloud.io
Scalable AI code verification for high-velocity teams. Integrate SonarQube with your SaaS DevOps workflow to review AI code and prevent production vulnerabilities.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
lichess.org • Free Online Chess
lichess.org
Free online chess server. Play chess in a clean interface. No registration, no ads, no plugin required. Play chess with the computer, friends or random opponents.
OpenAPI
developer
20
+20 OpenAPI
missing +25 llms.txt
DIA | Price Any Asset. Verify Every Feed.
diadata.org
Oracle infrastructure for professional DeFi. Verifiable price feeds, intrinsic fair value, and reserve verification for protocols and institutions.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
I
20
+20 OpenAPI
missing +25 llms.txt
IBM
ibm.com
For more than a century, IBM has been a global technology innovator, leading advances in AI, automation and hybrid cloud solutions that help businesses grow.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Google Cloud Documentation
docs.cloud.google.com
Comprehensive documentation, guides, and resources for {% dynamic print site_values.cloud_name %} products and services.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
MusclesWorked — The Exercise Data Layer for Fitness Platforms
musclesworked.com
Map any exercise to the exact muscles it works. 856 exercises, 63 muscles, 7,310 mappings. MCP Server + REST API for fitness apps, AI coaches, and health platforms.
OpenAPI
developer
20
+20 OpenAPI
missing +25 llms.txt
memoir — Your AI's memory, on every tool and machine. Yours, not your IDE's.
memoir.sh
Your AI's memory — across Claude, Cursor, Gemini, and every machine you own. Not locked inside one IDE. End-to-end encrypted, with keys only you hold. Free on one machine; sync and team plans available.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
20
+15 structured API
+5 AI robots
missing +25 llms.txt
CronAlert — Uptime Monitoring That Alerts Instantly
cronalert.com
Monitor your websites, APIs, and services every minute. Get instant alerts via email, Slack, Discord, and more when something breaks. Free for 25 monitors.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Gitea Official Website
gitea.com
Gitea - Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD
API
AI bots
developer
20
+15 structured API
+5 AI robots
missing +25 llms.txt
Replit — Replit Blog – Product updates from the team
blog.replit.com
Stay updated with the latest Replit product releases, events, and other news. Learn about how we ship new features, design, and engineering.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Paragon | Integration Infrastructure for Developers
useparagon.com
Ship native SaaS integrations faster with Paragon’s integration infrastructure, managed authentication, workflows, sync, and developer tools.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
social.plus - Build an in-app community that powers growth
social.plus
Drive engagement, collect data, and grow revenue directly inside your app with social.plus, the in-app community infrastructure for product teams.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Runtime Trust Infrastructure for AI Agents | Predicate Systems
sentienceapi.com
The runtime trust layer for AI agents: authorize dangerous actions before execution, verify outcomes after execution. No LLM-as-judge.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Scenario | The Creative AI Infrastructure
scenario.com
Build custom workflows across image, video, audio and 3D. Train on your art bible so every asset is unmistakably yours. One platform for creatives, one API for developers, one MCP for agents.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Vectorize — Agent Memory That Learns
vectorize.io
Open source agent memory. Your agents learn from mistakes and get better over time. 94.6% on LongMemEval. MIT licensed.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
GitHub Star History — Track & Compare Open Source Star Growth
star-history.com
View and compare GitHub star history graph of open source projects.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Flipt - Feature Flag Management for Safe Deployments | Git-Native, Self-Hosted
flipt.io
Stop breaking production with risky deployments. Deploy features safely through an intuitive UI that automatically syncs to Git. All the safety, none of the complexity.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
metro-mcp · Plug your LLM into the subway
metro-mcp.anuragd.me
Connect any MCP client to live DC Metro and NYC Subway data. Real-time arrivals, incidents, and 598 stations via the Model Context Protocol.
API
AI bots
developer
20
+15 structured API
+5 AI robots
missing +25 llms.txt
Shipi - Multi-Carrier Shipping Automation for Shopify, WooCommerce & More
mcp.myshipi.com
Shipi automates shipping for Shopify, WooCommerce, Wix, OpenCart & Stripe. Get live carrier rates, labels, tracking, split shipping, and custom workflows with DHL, FedEx, UPS, DPD, Aramex & more.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
LiveScore MCP - Football Live Scores API for AI Agents
livescoremcp.com
Free MCP server for real-time football scores, fixtures, team stats and player data. Connect Claude, Cursor or any AI agent to 1000+ leagues worldwide.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Google for Developers | Build with Gemini
developers.google.com
From AI and Cloud to Mobile and Web: Explore developer resources and community events to help you build with Gemini.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
DEV Community
dev.to
A space to discuss and keep up software development and manage your software career
ai-plugin
developer
20
+20 ai-plugin
missing +25 llms.txt
Expo — Build Native Apps with React
expo.dev
Expo is the fastest way to build native apps for iOS, Android, and the web with React.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Mixcloud - This is Audio Culture
mixcloud.com
Join a global community where creators craft a deeper listening experience.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
The Best File Uploader & Upload API - Filestack
filestack.com
Add a sleek file uploader to your website with just two lines of code. Upload files from local disk, Dropbox, Instagram, Google Drive, and over 20 integrations
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Overview | Moondream Docs
docs.moondream.ai
Moondream is an open-source family of Vision Language Models (VLMs) built for powerful, efficient visual reasoning. Our newest release, Moondream 3 Preview, is a mixture-of-experts model with grounded visual reasoning, a 32k context window, and native support for multiple vision skills—like pointing, counting, and object detection—all designed with a deployment-friendly ethos.
API
Schema.org
developer
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
20
+20 OpenAPI
missing +25 llms.txt
Wire NHS into your agent — MCP server
Add Not Human Search as an MCP tool. Your agent can call search_agents, get_site_details, get_stats, and submit_site at runtime.
Claude Code
claude mcp add --transport http nothumansearch https://nothumansearch.ai/mcp
Other clients: point any MCP-compatible tool at
https://nothumansearch.ai/mcp (streamable-http transport).Use NHS via REST
Prefer plain HTTP? Hit the search endpoint directly.
Search API
curl "https://nothumansearch.ai/api/v1/search?q=payment+API"
Agent Docs
Hiring AI / agentic engineers?
Live feed of AI/agent roles from AI Dev Jobs — 8,000+ positions, 489 companies:
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We'll email you when your site's agent signals regress — so you catch it before your AI traffic drops. One email per week, only on real regressions.
Set up free monitoring →Submit Your Site
Get crawled and scored on agentic readiness. Appear in agent search results.