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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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4975 sites found for "payment API"
Synapse Layer — Trust Infrastructure for AI Agents
synapselayer.org
Encrypted AI memory infrastructure for AI agents. Persistent memory with AES-256-GCM encryption, MCP native protocol, cross-agent handover, and built-in governance.
llms.txt OpenAPI API Schema.org MCP developer
75
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
TLS Radar - SSL/TLS Certificate Monitoring
tlsradar.com
Free SSL/TLS certificate monitoring with real-time expiry alerts. Run a free SSL scan, issue a free 90-day certificate, and catch misconfigurations and vulnerabilities before they cause downtime.
llms.txt ai-plugin OpenAPI AI bots Schema.org communication
75
+25 llms.txt +20 ai-plugin missing +15 structured API
Untitled_ (Sustainability) — DPX Stablecoin Protocol
untitledfinancial.com
Building stablecoin protocols for treasury management with sustainability top of mind. Multi-source verified oracle, PID-controlled stability, ESG-aware treasury logic on Base mainnet.
llms.txt ai-plugin API AI bots MCP other
75
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
VRS Consulting — AI-native transformation
vrsconsultants.com
VRS Consulting turns AI ambition into operating advantage through strategy, intelligent systems, and software execution.
llms.txt ai-plugin OpenAPI AI bots Schema.org ai-tools
75
+25 llms.txt +20 ai-plugin missing +15 structured API
Warp | The Open Source Freight Network
wearewarp.com
The open source freight network. Top 20 LTL carrier. 98.2% on-time delivery. Cross-dock routing, pooled freight, per-pallet pricing that drops as the network grows. 1,500+ LTL lanes, 80%+ US LTL zip-to-zip coverage, nationwide FTL, 50+ cross-docks, 38,000+ carriers.
ai-plugin OpenAPI API AI bots Schema.org MCP developer
75
+20 ai-plugin +20 OpenAPI missing +25 llms.txt
APIDNA — AI Agents Built for Your Business | Agentic Systems
apidna.ai
APIDNA delivers vertically-trained agentic systems that execute real-world workflows reliably across enterprise environments. Reconciliation, compliance, document operations, and process automation.
API Schema.org ai-tools
20
+15 structured API +5 Schema.org missing +25 llms.txt
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
0nMCP — The Universal AI API Orchestrator
0nmcp.com
The universal AI API orchestrator. 1,640+ tools across 111 services. One install. Zero config. MIT licensed. Powered by 5 patented technologies.
llms.txt AI bots Schema.org MCP ai-tools
45
+25 llms.txt +10 MCP missing +20 ai-plugin
Predict Age From a Name - Accurate Age Inference API
agify.io
Estimate age from a name. Use our API, process spreadsheets or utilize through third-party tools.
llms.txt API Schema.org ai-tools
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Alpaca - Developer-first API for Stock, Options, Crypto Trading
alpaca.markets
Alpaca's easy to use APIs allow developers and businesses to trade algorithms, build apps and embed investing into their services.
llms.txt API Schema.org finance
45
+25 llms.txt +15 structured API missing +20 ai-plugin
The API Orchestration Platform for AI Agents, Web, and Mobile Apps
apollographql.com
Connect agents and apps to GraphQL and REST APIs with proven infrastructure trusted by enterprise leaders.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Property Data Analytics & AI-Powered Intelligence: API, Bulk, Cloud
attomdata.com
Unlock trusted property data and analytics with AI-powered insights. Flexible delivery options including API, bulk licensing, cloud, and MCP server.
llms.txt API Schema.org data
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
In-app Chat SDK & API For Messaging And Calling - CometChat
cometchat.com
Build real time chat, voice and video calling experience with CometChat's flexible SDKs, APIs & UI Kits. Sign up now!
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
ContextWire — AI-Powered Research & Context API for Developers
contextwire.dev
Free search API for AI agents. 94.3% SimpleQA accuracy, 105 engines, MCP server. 1,000 free queries per month.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Free IP-to-Country Geolocation API | Country
country.is
Country is a free IP-to-country geolocation API that returns a user’s country based on their IP address.
llms.txt API Schema.org data
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Country State City API - World's Most Comprehensive Geographic Database for Developers
countrystatecity.in
Access 250+ countries, 5,000+ states & 153,000+ cities via fast REST API. Trusted by 50,000+ developers with 99.9% uptime. Free tier available - start building today!
llms.txt API Schema.org data
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Crawleo - Search and Crawl API for AI and LLM apps
crawleo.dev
Crawleo is the answer engine for AI apps. Bing and Google search, Google Maps, web crawling, and an anti-bot headful browser, all over one API with native MCP.
llms.txt API Schema.org ai-tools
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Powerful API Stack For Data-Driven SEO Tools – DataForSEO
dataforseo.com
We provide comprehensive data solutions for SEO and SEM analytics via API. DataForSEO is a trusted partner for 750+ SEO software companies and agencies.
llms.txt API Schema.org data
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Datakoot — Intelligence APIs for AI Agents
datakoot.com
Keyless MCP servers that give AI agents real-time security, package, filings, market, economic, weather, regulatory, on-chain and domain intelligence. Nine servers, 46 tools, in the official MCP registry. No API keys.
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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