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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"
FlashAlpha | Options Analytics API - Greeks, Exposure & Vol Surfaces
flashalpha.com
Real-time options analytics API. Greeks, gamma exposure (GEX), SVI volatility surfaces, and market data for 6,000+ US equities & ETFs plus CME index futures (ES, NQ). REST + WebSocket streaming, backtestable since 2017. Free tier available - get your API key in minutes.
llms.txt API AI bots Schema.org finance
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Gpt Image 2 Api
gptimage2api.net
GptImage2Api provides powerful GPT Image 2 API access for developers, startups, and businesses to generate high-quality AI images with simple REST endpoints. Build image generation apps, automate creative workflows, and integrate GPT Image 2 API into your products instantly.
llms.txt API AI bots Schema.org ai-tools
50
+25 llms.txt +15 structured API missing +20 ai-plugin
срезAI — Поисковый API для ИИ-агентов
srezai.ru
Поисковый API для ИИ-агентов: живой веб-поиск по Рунету, рендер страниц браузером и чистый Markdown/JSON для RAG и LLM-пайплайнов. Единый REST API и MCP-сервер.
llms.txt API AI bots Schema.org ai-tools
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Unified Social Media & Ads API for Instagram, TikTok & X | Adeli
tryadeli.com
Adeli is a unified social media and ads API: publish, schedule, analyze, and run ads across Instagram, TikTok, YouTube, Facebook, X, and more with one API. Free to start.
llms.txt API AI bots Schema.org communication
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Elecz — Real-Time Electricity Price API for AI Agents
elecz.com
Global real-time electricity price signals for AI: live prices, cheapest hours and contract insights for 100+ zones. MCP-native, free, no auth.
llms.txt OpenAPI API Schema.org ai-tools
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
UtilsForAgents — AI Agent Utility API | x402 Pay-Per-Call
utilsforagents.com
Pay-per-call AI agent utilities plus a free feedback endpoint: JSON diff, EXIF extraction, metadata scrubbing, HTML-to-Markdown, URL fetching, and feature-request collection. $0.003/call for paid utility routes via x402 on Base or Solana.
llms.txt OpenAPI API AI bots ai-tools
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
SuperSend API - Email Automation REST API
docs.supersend.io
Build powerful email automation with the SuperSend API. Everything you can do in the dashboard, you can do programmatically. REST API for contacts, campaigns, webhooks, senders, and more.
OpenAPI AI bots Schema.org developer
30
+20 OpenAPI +5 AI robots missing +25 llms.txt
WireMock - flexible, open source API mocking | WireMock
wiremock.org
WireMock is a tool for building mock APIs. API mocking enables you build stable, predictable development environments when the APIs you depend on are unreliable or don’t exist.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
AI Video & Image Generation APIs | 01Router
01router.com
Access leading AI video and image models with one 01Router API key, plus text and audio. Choose models and providers to match your budget and quality needs.
llms.txt API AI bots Schema.org ai-tools
50
+25 llms.txt +15 structured API missing +20 ai-plugin
ApyHub — The Trusted API Marketplace for Developers
apyhub.com
Certified, production-ready APIs for common product features and infrastructure tasks. Stop rebuilding the same endpoints every quarter — ship in 60 seconds.
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Asterwise — Astrology, Numerology & Tarot API
asterwise.com
Astrology and divination API for developers. Vedic and Western astrology, numerology, tarot, crystals, and horoscopes. 115+ endpoints, MCP server, Python and TypeScript SDKs. Free Sandbox tier; paid Builder, Launch, and Scale plans billed in USD.
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Authress - login and access control API
authress.io
Login and access control API - granular, role and resource-based access for users of your software. Deliver the Auth your users expect.
llms.txt API AI bots Schema.org security
50
+25 llms.txt +15 structured API missing +20 ai-plugin
GPT API for Coding Agents: OpenAI & Claude | CodeI Lab
codeilab.com
Discounted GPT API credit below official pay-as-you-go cost, with OpenAI and Claude protocols. Configure Claude Code, Codex CLI or OpenCode in one command.
llms.txt API AI bots Schema.org developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Codex.io | Fastest & Most Reliable Token & Prediction Market Data API
codex.io
The Codex API offers real-time, enriched blockchain data for 76 million+ tokens on 80+ networks. Fast and accurate enriched data for token and prediction market prices, real-time charts, aggregated data, holders, and balances.
llms.txt API AI bots Schema.org data
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Commune — Programmatic Email Inbox API for AI Agents
commune.email
Give every agent its own email inbox. Programmatic inbox creation, DKIM-signed delivery, inbound webhooks, and thread tracking — all through the API. Built for autonomous agents.
llms.txt API AI bots Schema.org ai-tools
50
+25 llms.txt +15 structured API missing +20 ai-plugin
DataForB2B — B2B Data API for AI Agents
dataforb2b.ai
DataForB2B — the real-time B2B data API for AI agents in sales, recruiting and investment. 800M+ profiles, 75M+ companies. REST, MCP, webhooks.
llms.txt API AI bots Schema.org finance
50
+25 llms.txt +15 structured API missing +20 ai-plugin
E
Exchange Rate API — Real-time & Historical Currency Data
exchange-rate.nimbus-api.com
Free exchange rate API with 160 fiat, crypto + precious metals. Historical data back to 1999, batch conversion, time-series. No paywall on features competitors charge for.
OpenAPI API Schema.org MCP developer
50
+20 OpenAPI +15 structured API missing +25 llms.txt
Firecrawl - The context API to search, scrape, and interact with the web at scale. 🔥
firecrawl.dev
Firecrawl is the context API to search, scrape, and interact with the web at scale. Turn any source into clean Markdown or structured data your agents can ship with.
llms.txt API MCP developer
50
+25 llms.txt +15 structured API missing +20 ai-plugin
ifrCoworker — Financial Reporting Coworker | 31 Standards, MCP with 21 tools & REST APIs
ifr.spocont.com
ifrCoworker — 31 IAS/IFRS standards automated. Journal entries with paragraph references, XBRL tags, consolidation working papers. API and MCP integration for Claude Code, Cursor, Windsurf, VS Code.
llms.txt API AI bots Schema.org finance
50
+25 llms.txt +15 structured API missing +20 ai-plugin
Koko Finance — Credit Card Intelligence API & MCP Server
kokofinance.net
Credit card portfolio analysis, recommendations, and renewal intelligence via REST API or MCP server. Evaluation tier available. Ship card intelligence in a day.
OpenAPI API Schema.org MCP developer
50
+20 OpenAPI +15 structured API missing +25 llms.txt

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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