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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.

5542
Sites Indexed
39
Avg Score
1693 entries in this directory
MCP Servers Directory 2026 — 3260+ for Claude, Cursor & Codex
awesome-mcp.tools
MCP server directory for Claude, Cursor, Codex & Cline. Browse 3260+ servers, search by category, compare side-by-side, copy install commands. Updated daily.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
SchedulesMCP — Ocean Carrier Schedules & Reliability
schedulesmcp.com
See which carrier actually sails on time, before you book. Live sailing schedules from 60+ carriers: 72,000+ upcoming sailings across 5,000+ lanes and 255 ports, scored against observed departures. Search your lane free.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
ko.io — SEC 13F Holdings, Insider Trades & Congress Trading Data
ko.io
Financial data infrastructure for AI agents and developers. Structured SEC 13F holdings, insider trades, congress trading, stock fundamentals, and macro indicators via MCP and REST API.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
FrameFetch — Video Data API for AI Agents | Transcript, Frames, On-Screen Text
framefetch.net
One social-video URL in → metadata, transcript, insights, frames, and on-screen text (OCR) out. Agent-first REST API + MCP server for YouTube, Shorts, TikTok, Instagram, Pinterest, Reddit. Pay per call, or with x402 (USDC) — no account.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Agent Papers
agentpapers.dev
Agent Papers is the curated registry of agent personhood infrastructure: identity, phone, email, addresses, money, legal, and insurance for AI agents.
llms.txt OpenAPI API MCP developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
1Claw — Secret Management for AI Agents
1claw.xyz
HSM-backed secret management for AI agents and humans. MPC key splitting across GCP, AWS, and Azure. Vault API, MCP server, Shroud TEE proxy, Intents API for transaction signing. Policy-based access, audit log, CMEK.
llms.txt ai-plugin API AI bots Schema.org developer
70
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
Autonomous validation for the AI era - CircleCI
circleci.com
Deliver production-ready software at AI speed. CircleCI helps modern teams validate, test, and ship every change with intelligent automation.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Render | The cloud for builders
render.com
Deploy and scale any app or agent from your first user to your billionth. Build faster on intuitive cloud infrastructure for the modern web.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
BrowseAI Dev — Research Infra for AI Agents with Grounded Intelligence | MCP Server, REST API, Python SDK
browseai.dev
Open source research infrastructure for AI agents with Grounded Intelligence. Evidence-backed web search with confidence scores, citation verification, contradiction detection, and Clarity anti-hallucination answer engine. MCP server, REST API, Python SDK.
llms.txt ai-plugin API AI bots Schema.org developer
70
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
memnode | Agent Memory Built Like Infrastructure
memnode.dev
Hosted and local memory for AI agents, with provenance, typed recall, garbage collection, and a Rust data plane.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Convalytics: Web and product analytics for Convex apps
convalytics.dev
(Free) Web and product analytics for Convex apps
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Stop starting from zero · StremAI
aiagentsbay.com
StremAI is one brain for all your coding agents, so what one connected agent learns, the next can recall.
llms.txt ai-plugin API AI bots Schema.org developer
70
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
Vettly - Content Moderation API for App Developers
vettly.dev
Moderate user-generated content across text, image, and video with one API. Filtering, reporting, blocking, and audit trails for app teams.
llms.txt ai-plugin API AI bots Schema.org developer
70
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
M
AUTOMOTO MCP — AI-інсайти на основі автомобільних даних
mcp.automoto.ai
Підключіть Claude, ChatGPT, Cursor до даних AUTOMOTO через MCP. API ключ для авторизації, контроль доступу до таблиць, моніторинг запитів.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Helius - Solana's Leading RPC and API Platform
helius.dev
Solana RPCs, APIs, gRPC, webhooks, and dedicated infrastructure to build and ship crypto apps, fast. Get started for free in 1 click.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Getting started with Warp and Oz | Warp
docs.warp.dev
Get started with Warp, the Agentic Development Environment, and Oz, the orchestration platform for cloud agents.
llms.txt OpenAPI API MCP developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Cloudflare Workers - Global Serverless Functions Platform
workers.cloudflare.com
Deploy serverless functions globally in seconds. No cold starts, 330+ cities, infinite concurrency, and pay only for CPU time. Support for JavaScript, TypeScript, Python, and Rust.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
SubwayInfo.nyc - Real-time NYC Subway Data via MCP
subwayinfo.nyc
The fastest MCP server for NYC transit. Real-time train arrivals, service alerts, and trip planning for Claude, ChatGPT, and AI agents.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Cross Browser Testing & Mobile App Testing | TestingBot
testingbot.com
Instant access to over 6100 browsers with physical iOS and Android devices. Parallel Testing. Automated Testing. Boost your UI test suite in minutes with TestingBot.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Social Data API for AI Agents — Brand Monitoring, Listening, Intel | XPOZ
xpoz.ai
One API for brand monitoring, social listening, lead generation, and competitive intelligence across Twitter/X, Instagram, TikTok, and Reddit. MCP server + typed SDKs for Claude Code, Codex, Gemini CLI. No platform API keys.
llms.txt ai-plugin API AI bots Schema.org developer
70
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
mcp.websitepublisher.ai
mcp.websitepublisher.ai
llms.txt OpenAPI API MCP developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
G
WaveGuard Anomaly Detection by Emergent Physics Lab
gpartin--waveguard-api-fastapi-app.modal.run
Physics-based data intelligence: anomaly detection, fingerprinting, and similarity analysis. Detect token scams, wash trading, wallet bots, price manipulation, or quality-check any structured data.
ai-plugin OpenAPI API AI bots MCP developer
70
+20 ai-plugin +20 OpenAPI missing +25 llms.txt
F
fabric-api-393345198409.us-west1.run.app
fabric-api-393345198409.us-west1.run.app
llms.txt OpenAPI API MCP developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
VirtualSMS, Receive SMS Online | Real Physical SIMs | 145+ Countries
virtualsms.io
Real SIM cards for OTP verification across 145+ countries, 2500+ services including WhatsApp, Telegram, Discord. From $0.05/code, API and MCP server included.
llms.txt OpenAPI API AI bots Schema.org developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Brand search ad monitoring for Google and Bing · Ads Lighthouse
adslighthouse.com
See who advertises on your brand searches on Google and Bing, by location and device. Save their ads, spot your affiliate IDs and start a 7-day free trial.
llms.txt OpenAPI API Schema.org developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
L
Agent Settlement — Liberty
liberty-amber.vercel.app
Escrow and credits for agent jobs. Demo — not real money.
llms.txt OpenAPI API Schema.org developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
M
msgboard.dev
msgboard.dev
llms.txt OpenAPI API AI bots developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
DELTA Witness — Trust Layer for Autonomous Actions
delta-witness-api.ruphussten.workers.dev
Paid, machine-verifiable capture and preflight checks for public web sources.
llms.txt OpenAPI API Schema.org developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Kinocut — guardrailed video editing MCP server for AI agents
kinocut.dev
Kinocut is a free, local-first MCP server, Python library, and CLI for AI-agent video editing. Preflight guardrails, Video Receipts, quality gates, FFmpeg, Hyperframes, and Apache-2.0. Formerly mcp-video.
llms.txt OpenAPI AI bots Schema.org MCP developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
A
agents.kimetsu.dev
agents.kimetsu.dev
llms.txt OpenAPI API AI bots developer
65
+25 llms.txt +20 OpenAPI 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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