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Find services AI agents can actually use.

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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5749 sites found for "payment API"
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Neutrino API: The general-purpose API
neutrinoapi.com
Neutrino API provides a collection of general-purpose APIs that solve common but difficult problems encountered during software development
API Schema.org other
20
+15 structured API +5 Schema.org missing +25 llms.txt
0x | Powerful APIs to build financial apps on crypto rails
0x.org
Developers’ one-stop shop to enable faster crypto trading, better prices, and superior UX. Get started now at 0x.org.
llms.txt API AI bots Schema.org finance
50
+25 llms.txt +15 structured API missing +20 ai-plugin
BigDataCloud — Precise IP Geolocation & Reverse Geocoding APIs
bigdatacloud.com
Patented IP geolocation with daily public accuracy benchmarks. Free to start, scales to billions.
llms.txt API AI bots Schema.org data
50
+25 llms.txt +15 structured API missing +20 ai-plugin
BigDataCloud — Precise IP Geolocation & Reverse Geocoding APIs
bigdatacloud.net
Patented IP geolocation with daily public accuracy benchmarks. Free to start, scales to billions.
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
D
TechEnthus Hardware API - MCP Server
data.techenthus.dev
llms.txt API MCP developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Web Scraping & Search API for AI Agents | fastCRW
fastcrw.com
Open source Firecrawl + Tavily alternative. Search, scrape, crawl, map, and extract the web for AI agents. Self-hostable Rust binary, free tier.
llms.txt API AI bots Schema.org ai-tools
50
+25 llms.txt +15 structured API missing +20 ai-plugin
LiveDataLink: Real-Time Data API for AI Agents | 284 Tools, 59 Data Domains
livedatalink.ai
LiveDataLink: 284 MCP tools across 59 data domains. Sanctions screening, FMCSA carrier safety, CVE lookups, SEC filings, court records, FEMA/NWS, EIA energy, FRED macro, US Treasury, NPI healthcare, package registries, real estate, and more. Free tier, no card. Works with Claude, Cursor, any MCP client.
llms.txt API AI bots Schema.org health
50
+25 llms.txt +15 structured API missing +20 ai-plugin
MojoAuth - Passwordless Authentication API | OTP, Passkeys, Magic Links, SSO
mojoauth.com
Enterprise-grade passwordless authentication with zero-store architecture - no passwords stored, no database to breach. OTP, magic links, passkeys (FIDO2/WebAuthn), social login, and SSO. Free up to 25,000 MAUs. Trusted by 5,000+ businesses processing 14M+ auth requests daily.
llms.txt API AI bots Schema.org data
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Best News API for Real-Time & Historical News | NewsData.io
newsdata.io
llms.txt OpenAPI AI bots data
50
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Postmark: Fast, Reliable Email Delivery Service | SMTP | API
postmarkapp.com
Send transactional and marketing emails and get them to the inbox on time, every time. Postmark is a fast and reliable email delivery service for developers.
llms.txt API AI bots Schema.org communication
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Postmark: Fast, Reliable Email Delivery Service | SMTP | API
postmark.com
Send transactional and marketing emails and get them to the inbox on time, every time. Postmark is a fast and reliable email delivery service for developers.
llms.txt API AI bots Schema.org communication
50
+25 llms.txt +15 structured API missing +20 ai-plugin
SPARKIT | Scientific research agent API
sparkit.science
SPARKIT finds relevant web sources and scientific papers, compares the evidence, runs calculations or code, and returns an inspectable cited report.
llms.txt API AI bots Schema.org other
50
+25 llms.txt +15 structured API missing +20 ai-plugin
New API
ai.sofungame.online
Unified AI API gateway and admin dashboard.
llms.txt API ai-tools
40
+25 llms.txt +15 structured API missing +20 ai-plugin
APOGEOAPI - Geographic Data + Live Exchange Rates API
apogeoapi.com
REST API for countries, states, cities, timezones, and real-time currency exchange rates. 250+ countries, 150K+ cities, 161+ currencies with live USD rates inline. Free tier: 1,000 req/month, no credit card.
OpenAPI API Schema.org finance
40
+20 OpenAPI +15 structured API missing +25 llms.txt
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
国内 AI 算力与统一 API 服务平台 | 小蓝助手 Blue
bluedoai.com
把模型选型、API 调用、工具使用、充值用量和账户管理收束到一条稳定路径。模型、价格和可用状态以控制台及模型广场的实时配置为准。
llms.txt API ai-tools
40
+25 llms.txt +15 structured API missing +20 ai-plugin
CalorieNinjas - Easy, Free Nutrition Facts and Recipe API
calorieninjas.com
Free nutrition and recipe API for over 100,000 foods and beverages.
llms.txt API other
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
D
Introduction | Raycast API
developers.raycast.com
Start building your perfect tools with the Raycast API.
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
districtapi.dev — US School District API
districtapi.dev
REST API for US public school district and school data. Address-to-district lookup, enrollment, demographics, boundaries. Free tier available.
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"
Agent Docs
llms.txt OpenAPI spec ai-plugin.json

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