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Search the agentic web for free. Compare services, APIs, and tools by machine-readable readiness. Organic rank is based on readiness, never payment.

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5748 sites found for "payment API"
Scalar — API Documentation, SDKs, API Client & Registry
scalar.com
Create beautiful docs, SDKs and secure MCP servers from your API. Scalar keeps every interface in sync as your API evolves.
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
Airbnb Data | Short-Term Rental API | Vacation Rental Analytics | AirROI
airroi.com
Airbnb analytics for 20M+ properties in 190+ countries with 15+ years of STR data. Airbnb data API, revenue calculator, market research, dynamic pricing.
llms.txt OpenAPI API Schema.org ecommerce
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Desearch - Web Search API for AI Agents
desearch.ai
Search, crawl, cite, and monitor fresh web plus social context through one API built for reliable AI agent workflows at scale.
llms.txt OpenAPI API Schema.org ai-tools
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
FlowCheck: Financial analytics API
developer.usepopup.com
Connect Stripe, Shopify, and your bank account to get programmable access to revenue, expenses, and cash flow. Build internal dashboards, automate reporting, or run analysis scripts. One API key, 5 minutes to integrate.
llms.txt ai-plugin API Schema.org developer
65
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
Virlo Developer Docs — Social Video & Hashtag Analytics API
dev.virlo.ai
Build with the Virlo API: hashtag analytics, video intelligence, sound and creator data across TikTok, Instagram Reels, and YouTube Shorts. Pay-as-you-go.
llms.txt OpenAPI API Schema.org ai-tools
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Infer by Flow7 — One API for production AI models
infer.flow7.org
One API for production AI models, with current availability, clear prices, and hard spend controls.
llms.txt OpenAPI API Schema.org ai-tools
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
LoginWA: WhatsApp API for OTP, Notifications & Broadcast
loginwa.com
WhatsApp for OTP, notifications, broadcast, and auto-reply. Use the API with keys, webhooks, and SDKs, or run blast and contacts from the dashboard. Free 100 messages/month, from $1. Card or QRIS.
llms.txt OpenAPI API Schema.org developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Enrich Layer - Data API for People and Companies | Enrich Layer
proxycurl.com
Over a billion verified people, companies, and jobs records — continuously refreshed. API access to structured data for enrichment, prospecting, and analytics.
llms.txt OpenAPI API Schema.org data
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Australian & NZ Racing Odds API — Horse, Greyhound & Harness | PuntersEdge
puntersedge.online
Australian and New Zealand racing odds from 14 bookmakers, plus AFL, NRL and other sports, in one REST/JSON API. Next-to-go, best odds, price history, results. Free key.
llms.txt OpenAPI API Schema.org other
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Open Source Chart Image API | QuickChart
quickchart.io
Create a chart image with one API call and embed it anywhere. Send charts in email and other platforms. Open source, no watermarks, used by thousands of developers.
llms.txt ai-plugin OpenAPI developer
65
+25 llms.txt +20 ai-plugin missing +15 structured API
RAE API - Diccionario RAE
rae-api.com
API no oficial del diccionario de la Real Academia Española
llms.txt OpenAPI API Schema.org developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
ReqRes | Free REST API for developers | ReqRes
reqres.in
Free REST API for testing and prototyping with real responses, no signup needed. Or build your own backend with collections, auth, and logs at app.reqres.in.
llms.txt OpenAPI API Schema.org developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
REST Countries - Country data API
restcountries.com
REST Countries is a country data API: 250+ countries, 80 fields each with 99.995% uptime.
llms.txt OpenAPI API Schema.org other
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
The Public Social Data API for Developers & AI Agents
twitterapi.io
The public social data API for developers and AI agents — read user feeds, search posts, and publish with predictable per-call pricing, no minimums, no rate limits.
llms.txt OpenAPI API Schema.org ai-tools
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
unulu™ — Create Link-in-Bio Sites via AI, MCP, or API
unulu.ai
Build and publish a link-in-bio page in seconds. Talk to any AI agent — Claude, ChatGPT, Gemini — and get a live site on unu.lu. Free, no signup. MCP server and REST API for developers.
llms.txt OpenAPI API Schema.org developer
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
G
Postman: The World's Leading API Platform | Sign Up for Free
getpostman.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 AI bots Schema.org MCP other
60
+25 llms.txt +15 structured API missing +20 ai-plugin
P
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 AI bots Schema.org MCP developer
60
+25 llms.txt +15 structured API missing +20 ai-plugin
Sora2 Api | Sora 2 Video Generation API
sora2-api.com
Build Sora-style video generation with unified access to Sora 2 and Sora 2 Pro.
llms.txt API AI bots developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Animica — Python Cloud + pay-per-call x402 APIs for AI agents
animica.dev
Animica Python Cloud: deploy a Python function to animica.dev, get a public endpoint, and earn ANM every time someone runs it. Free AI (OpenAI-compatible, no key), free scheduled Workers, and an 80/20 developer split.
llms.txt ai-plugin API Schema.org MCP ai-tools
75
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
M
MintPDF — HTML & Markdown to PDF API for AI agents
mintpdf.dev
Markdown in, finished PDF out. One POST request or one MCP tool call. No template editor, no dashboard. Free tier, MCP native.
llms.txt OpenAPI API Schema.org MCP ai-tools
75
+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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