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.

4191
Sites Indexed
36
Avg Score
1243 entries in this directory
Hydrata — Hydraulic Model Verification
hydrata.com
The verification platform for consultants. Prove your HEC-RAS or ANUGA hydraulic model is correct. Designed by engineers, for engineers. Open source. Auditable.
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Web Data Labs — {ACTOR_COUNT} Scraper APIs, No Account Required
frog03-20494.wykr.es
{ACTOR_COUNT} production scraper APIs for LinkedIn, Twitter, Google, Amazon and more. Pay per result on Apify. No OAuth, no SDK.
OpenAPI API Schema.org MCP developer
50
+20 OpenAPI +15 structured API missing +25 llms.txt
Keeper.sh — Open-Source Calendar Syncing for Google, Outlook & iCloud
keeper.sh
Keep your personal, work, and school calendars in sync automatically. Open-source (AGPL-3.0) calendar syncing for Google Calendar, Outlook, iCloud, FastMail, and CalDAV.
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Web Design and Website Support in Swindon | O’Brien Media
obrienmedia.co.uk
Website design, and website support for WordPress from our Swindon based designers who go above and beyond to help you grow your business.
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Ori Mnemos — Open Source Memory Layer for AI Agents
orimnemos.com
Open source, local-first persistent memory infrastructure for AI agents. Markdown-native, wiki-linked knowledge graphs with three-signal retrieval. Works with any MCP client. You own your memory.
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
GeoKit | AI-Readiness Audit for the Web by GLINR
geokit.dev
What Lighthouse is to web performance, GeoKit is to Generative Engine Optimization. Measure and improve your site's AI-readiness score. Built by GLINR Studios (GLINCKER).
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Popup Builder — Free Popups that convert more opt-ins and sales
claspo.io
Create high-converting popups in minutes. Free CRO-ready popup templates designed to grow your email list, drive sales, and increase revenue.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Postman: The World's Leading API Platform | Sign Up for Free
postman.com
Accelerate API development with Postman's all-in-one platform. Streamline collaboration and simplify the API lifecycle for faster, better results. Learn more.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Nuxt: The Full-Stack Vue Framework
nuxt.com
Build fast, production-ready web apps with Vue. File-based routing, auto-imports, and server-side rendering — all configured out of the box.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
File uploading, processing & delivery for web and mobile apps | Uploadcare
uploadcare.com
Uploadcare provides companies with simple, powerful, developer-friendly building blocks to handle file uploading, processing, and delivery. A complete out-of-the-box solution, built for engineers by engineers.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
TypeScript AI Agent Framework & Platform | Mastra
mastra.ai
An open-source TypeScript & JavaScript framework for building, testing and deploying AI agents and applications with ease, from idea to production.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
The Collaboration Stack for B2B
velt.dev
Add powerful real-time and multiplayer features to your product with Velt's easy-to-use collaboration SDK. Integrate comments, live cursors, and more in minutes.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Frigade: AI-powered product assistance for modern software teams
frigade.com
Frigade Assistant is the AI digital adoption platform for in-app user onboarding, product adoption, and feature adoption. It learns your product by using it, then guides users through real workflows in real time. No flow design, no prompt tuning, no docs to maintain.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Fern: Docs, SDKs, and CLIs for your API
buildwithfern.com
Start with OpenAPI. Generate SDKs in multiple languages, interactive API documentation, and an agent-first CLI.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Continuous Integration & Delivery - Semaphore
semaphoreci.com
A CI/CD platform for the entire software delivery workflow—fast pipelines, secure builds, and predictable costs from commit to production.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Pulumi - Infrastructure as Code in Any Programming Language
pulumi.com
Pulumi is an open-source infrastructure as code platform that helps humans and agents build and manage cloud infrastructure with real programming languages.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Alchemy - the blockchain development platform
alchemy.com
Whether you're a large enterprise or a startup, Alchemy makes building onchain easy.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Domain Names, Registration, Websites & Hosting | name.com
name.com
name.com is your complete source for domain names, hosting and other online presence solutions.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Reliable DNS Hosting and Domain Management with DNSimple
dnsimple.com
Discover reliable DNS hosting and domain management with DNSimple's secure REST API. Simplify your domain registration, transfer, SSL setup, and DNS management.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Image and Video Upload, Storage, Optimization and CDN
cloudinary.com
Streamline media management and improve user experience by automatically delivering images and videos, enhanced and optimized for every user.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Modal: High-performance AI infrastructure
modal.com
Bring your own code, and run CPU, GPU, and data-intensive compute at scale. The serverless platform for AI and data teams.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Bun — A fast all-in-one JavaScript runtime
bun.sh
Bundle, install, and run JavaScript & TypeScript — all in Bun. Bun is a new JavaScript runtime with a native bundler, transpiler, task runner, and npm client built-in.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Railway | The all-in-one intelligent cloud provider
railway.app
Railway is a full-stack cloud for deploying web apps, servers, databases, and more with automatic scaling, monitoring, and security.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Agno: Agent Framework and High-Performance Runtime for Multi-Agent Systems
phidata.com
Agno pairs the fastest framework available with the first enterprise-ready agentic operating system, AgentOS. Build, run, and manage secure multi-agent systems inside your cloud.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
D
Welcome to LlamaIndex 🦙 ! | Developer Documentation
docs.llamaindex.ai
llms.txt API AI bots developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Vercel: Build and deploy the best web experiences with the AI Cloud
vercel.com
Vercel gives developers the frameworks, workflows, and infrastructure to build a faster, more personalized web.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Open Source Alternatives to Popular Software
openalternative.co
A curated collection of the best open source alternatives to everyday SaaS products. Save money with reliable tools hand-picked for you.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
P
Packrift Agent Discovery Hub
packrift-agent-discovery-hub.vercel.app
Machine-readable Packrift discovery hub for the Packrift MCP packaging procurement endpoint, capability card, agent manifest, OpenAPI descriptor, and public Packrift AI-commerce resources.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
European Workflow Runtime for AI-Powered Content Workflows - Iteration Layer
iterationlayer.com
Iteration Layer is the EU AI workflow runtime for document, image, and content workflows: European by design, composable, and audit-ready.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Keenable - Search for AI agents
keenable.ai
Keenable provides fast web search and content access APIs for AI agents, with one key for CLI, REST API, and MCP server.
llms.txt API Schema.org developer
45
+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"
Agent Docs
llms.txt OpenAPI spec ai-plugin.json

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