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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"
OpenMeter by Kong - Open Source Billing and Usage Metering
openmeter.io
Ship usage-based billing with OpenMeter by Kong: real-time AI and API metering, entitlements, and flexible pricing. Open source or managed on Konnect.
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Launch Your SaaS Faster - Astro, Next.js &… | LaunchFast
launchfa.st
Skip weeks of auth, payments, and infra setup. Production-ready SaaS starter kits with swap-any provider integrations. Trusted by 110+ developers shipping in…
llms.txt API Schema.org developer
45
+25 llms.txt +15 structured API missing +20 ai-plugin
Documentation | Art Institute of Chicago API
api.artic.edu
The Art Institute of Chicago's API provides JSON formatted data as a REST-style service that allows developers to explore and integrate the museum’s data into their projects. This API is the same tool that powers our website, our mobile app, and many other technologies in the museum.
OpenAPI API data
35
+20 OpenAPI +15 structured API missing +25 llms.txt
Toolbooth — 58 Pay-Per-Call Tools for AI Trading Bots & Agents
toolbooth.io
Toolbooth: 58 pay-per-call tools for Solana trading bots and AI agents via MCP. Token security, swap quotes, DEXScreener data, wallet analytics, web search, and more. No API keys — pay USDC per call. Start building now, scale later.
API Schema.org MCP ai-tools
30
+15 structured API +10 MCP missing +25 llms.txt
The Capital Market For Every Asset on Earth
solana.com
Solana is the high performance network powering internet capital markets, payments, and crypto applications. Fast. Decentralized. Scalable. Energy efficient. Solana can power thousands of transactions per second.
llms.txt API finance
40
+25 llms.txt +15 structured API missing +20 ai-plugin
AgenticEmail - Email Infrastructure & API for AI Agents
agenticemail.dev
AgenticEmail is API-first email infrastructure for AI agents. Create inboxes on the fly, send and receive email over a REST API, and get webhooks, real-time events, custom domains, SDKs, and an MCP server.
llms.txt ai-plugin OpenAPI API Schema.org developer
85
+25 llms.txt +20 ai-plugin missing +10 MCP
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Packrift GitHub Pages API Directory Gateway
packrift-github-pages-api-gateway.vercel.app
Compact Packrift GitHub Pages API Directory gateway for public API-catalog, host-meta, OpenAPI, research-asset, and metadata rollups.
llms.txt ai-plugin OpenAPI API Schema.org developer
85
+25 llms.txt +20 ai-plugin missing +10 MCP
Bitrix24 REST API and Marketplace Applications
apidocs.bitrix24.com
llms.txt API other
40
+25 llms.txt +15 structured API missing +20 ai-plugin
API — ImgBB
api.imgbb.com
Free image hosting and sharing service, upload pictures, photo host. Offers integration solutions for uploading images to forums.
llms.txt API data
40
+25 llms.txt +15 structured API missing +20 ai-plugin
MACH Base — machine-native Base data
api.mach.gallery
MACH Base — fast, low-cost Base data for autonomous agents. Pay per call with USDC over x402.
llms.txt ai-plugin OpenAPI API AI bots Schema.org MCP data
100
+25 llms.txt +20 ai-plugin
A
API Reference | TheirStack Docs
api.theirstack.com
Explore the TheirStack API — the largest database of jobs and technographics. Search job postings, company tech stacks, and more across 100+ countries.
OpenAPI API data
35
+20 OpenAPI +15 structured API missing +25 llms.txt
S
FabTally Safe — crypto safety & "what am I signing" verification
safe.fabtally.com
Read-only crypto safety API: multi-chain token honeypot/rug checks, EIP-712/Permit2/Seaport signature decode, wallet approval-risk scans, keyless tx simulation. Pay per call via x402 (USDC on Base) or prepaid credit. Not financial advice.
OpenAPI API finance
35
+20 OpenAPI +15 structured API missing +25 llms.txt
api.video | API to host, manage and deliver videos
api.video
api.video lets you quickly and securely deliver on-demand and live-stream videos directly from your website, software, or app.
API Schema.org data
20
+15 structured API +5 Schema.org missing +25 llms.txt
1ly - Get paid by humans and AI agents
1ly.store
Turn any link into instant paid product with x402 protocol. One store for developers, creators, agents and web3 users. Monetize APIs, content, and digital products with USDC on Base & Solana. No hosting. No payment gateway. Just Add link, Set Price, Earn.
llms.txt ai-plugin AI bots Schema.org ai-tools
55
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
A
Joshua Project API
api.joshuaproject.net
OpenAPI API data
35
+20 OpenAPI +15 structured API 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
A
Agentry
api.agentry.com
Agent commerce infrastructure. 132+ agents with DID/Nostr identity, trust scoring, MCP tools, and Lightning/Cashu settlement. 136 API routes.
llms.txt ai-plugin OpenAPI API MCP data
90
+25 llms.txt +20 ai-plugin missing +5 AI robots
MRC Data — China's Apparel Supply Chain Infrastructure for AI
api.meacheal.ai
China's Apparel Supply Chain Infrastructure for AI. 20+ years of supply chain depth, 63+ dimensions per record, 350+ lab-tested fabric specs. API & MCP dual engine, powering AI apparel applications.
llms.txt ai-plugin OpenAPI API AI bots Schema.org data
90
+25 llms.txt +20 ai-plugin missing +10 MCP
ViralPayouts: affiliate software with no monthly fee
viralpayouts.com
Affiliate software that costs nothing until your affiliates make you money: 3.5% of what you pay them, and no monthly fee. Your best affiliates can recruit the next ones.
llms.txt ai-plugin OpenAPI API Schema.org MCP other
95
+25 llms.txt +20 ai-plugin missing +5 AI robots
X Developer Platform
developer.twitter.com
Use the X API with an all-new Developer Console and consumption-based billing. No fixed monthly costs, no monthly caps.
API developer
15
+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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