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.
5554
Sites Indexed
39
Avg Score
1699 entries in this directory
AI SDK
sdk.vercel.ai
The AI Toolkit for TypeScript, from the creators of Next.js.
llms.txt
API
developer
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+25 llms.txt
+15 structured API
missing +20 ai-plugin
Reown |Infrastructure for blockchain app development — Reown
reown.com
Reown provides powerful and performant infrastructure for developing best-in-class blockchain apps.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Build Full-Stack Servers
nitro.build
Add server API routes to any Vite apps and deploy with zero configuration on your favorite hosting platform.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Hono - Web framework built on Web Standards
hono.dev
Web framework built on Web Standards for Cloudflare Workers, Fastly Compute, Deno, Bun, Vercel, Node.js, and others. Fast, but not only fast.
llms.txt
API
developer
40
+25 llms.txt
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missing +20 ai-plugin
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D
Welcome to ZenML | ZenML - Bridging the gap between ML & Ops
docs.zenml.io
Build production ML pipelines and production-grade AI agents with ZenML and Kitaru.
llms.txt
API
developer
40
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The Whisk Platform | Whisk Docs
docs.whisk.com
Introducing the Whisk Platform.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Unified Social Media API for Apps, Platforms, and AI Agents
ayrshare.com
The Ayrshare API lets you post, schedule, analyze, and manage engagement across 13+ social networks through a single integration. Includes publishing, history, analytics, moderation, and MCP servers for AI agents.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
UniWebView
docs.uniwebview.com
UniWebView is a modern web view component for mobile Unity 3D games. Integrating web content to your games was never easier. It is a plugin built on native iOS/Android technology, which helps your users to enjoy web content and interact with your game through the web views.
llms.txt
API
developer
40
+25 llms.txt
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missing +20 ai-plugin
Home | Pimlico Docs
docs.pimlico.io
Pimlico is the world's most popular account abstraction infrastructure platform
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
WakaTime - AI coding analytics for developers
wakatime.com
Open source IDE plugins for programmers.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
marimo - Documentation for the Reactive Python Notebook - marimo
docs.marimo.io
marimo is an open-source reactive Python notebook. Run a cell or interact with a UI element, and marimo automatically runs dependent cells, keeping code and outputs consistent.
llms.txt
API
developer
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+15 structured API
missing +20 ai-plugin
D
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40
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40
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Welcome to e6data | Product Documentation
docs.e6data.com
e6data is a lakehouse compute engine built to run high concurrency, complex SQL analytics and AI workloads—10x faster, 60% cheaper, zero data movement.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
D
40
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+15 structured API
missing +20 ai-plugin
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Chartbeat Documentation | Chartbeat Docs
docs.chartbeat.com
Find documentation to integrate our user-friendly content analytics and optimization tools with ease.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
D
CoinCap API Manager
docs.coincap.io
CoinCap API — real-time cryptocurrency prices, market caps, and exchange data. Supports accountless x402 payment protocol for agent access: create a prepaid API key with POST /v3/prepaid/create (100 free credits, refill with USDC on Base). OpenAPI spec: https://rest.coincap.io/api-docs.json
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Coinranking API - Real-Time Crypto Data for Developers
developers.coinranking.com
Access 1M+ cryptocurrencies, real-time DEX data, and historical prices since 2010. Perfect for vibe coders and developers. Start your free 30-day trial.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Developer Hub
developer.sabre.com
Access powerful travel APIs, SDKs, and tools to build airline, hotel, and agency solutions. Get integration guides, documentation, and expert support for seamless development.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
serialif color API
color.serialif.com
An API to have a random color and black or white depending on its brightness
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
C
File Converter | CloudConvert
cloudconvert.com
File converter service - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
TensorBlock | Runtime stack for intelligent systems
tensorblock.co
TensorBlock builds open infrastructure for intelligent systems, including Forge and the free hosted MCP Index for searchable MCP server profiles and install metadata.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
The AI Router – Nexus
nexusrouter.com
Nexus aggregates MCP servers and provides seamless LLM routing for AI agents.
llms.txt
API
developer
40
+25 llms.txt
+15 structured API
missing +20 ai-plugin
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"
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