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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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174 sites found for "authentication"
P
Packrift Authority Gateway Registry
packrift-authority-gateway-registry.vercel.app
Public Packrift authority gateway registry for verified gateway/status artifacts and ledger count boundaries.
llms.txt ai-plugin OpenAPI API developer
80
+25 llms.txt +20 ai-plugin missing +10 MCP
Find a licensed peptide clinic near you | PeptideClinic
peptideclinic.fyi
PeptideClinic lists 17 peptide providers in Florida, California, Michigan, Missouri, Arizona, Nebraska, Nevada, North Carolina, Texas, and Virginia, each with…
llms.txt OpenAPI API AI bots Schema.org MCP security
80
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
AgentStamp — Trust, Verified. One Line of Code.
agentstamp.org
Open-web identity & reputation certification for AI agents you've never met. Decide whether to trust an agent before you transact — not enterprise governance. Free tier.
llms.txt ai-plugin API Schema.org MCP ai-tools
75
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
Artidrop — Share HTML & Markdown from any AI agent
artidrop.ai
Ask your AI to create a report, then share it with one link. Works with Claude Code, Manus, Codex, and more — no login required.
llms.txt OpenAPI API Schema.org MCP ai-tools
75
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Agent Papers
agentpapers.dev
Agent Papers is the curated registry of agent personhood infrastructure: identity, phone, email, addresses, money, legal, and insurance for AI agents.
llms.txt OpenAPI API MCP developer
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
AnchorRegistry™ — The open provenance layer for the agentic economy.
anchorregistry.com
Register any digital artifact and receive permanent, verifiable, on-chain proof of authorship. One payment. No expiry. Verifiable by any human or AI, forever.
llms.txt OpenAPI API AI bots Schema.org ai-tools
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
CLIRank | API directory for AI agents and CLI tools
clirank.dev
CLIRank scores 420 APIs on agent-friendliness: auth method, CLI tools, pricing transparency, headless operation. Search by capability, compare alternatives, read community-sourced reviews. Built for Claude Code, Cursor, Copilot, Codex, and Windsurf.
llms.txt OpenAPI API AI bots Schema.org ai-tools
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Face Shape, Phi & Face Score Analyzer for People & AI Agents
ilook.fit
Upload one authorized adult photo for face shape, facial symmetry, a Golden Ratio phi score, and a free subjective AI face score across five visible signals.
llms.txt OpenAPI API AI bots Schema.org ai-tools
70
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
J
Japan Seasons API — Cherry Blossoms, Autumn Foliage & Festivals
jpseasons.dokos.dev
REST API for Japanese seasonal data: cherry blossom forecasts, autumn foliage tracking, and festival listings. Built for AI agents and developers.
llms.txt ai-plugin API AI bots Schema.org ai-tools
70
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
lightpaper.org
lightpaper.org
API-first publishing platform for AI agents. Publish markdown documents as permanent, discoverable URLs with quality scoring and author gravity. Get started free.
llms.txt ai-plugin API AI bots Schema.org ai-tools
70
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
They Said So — Inspiring Quotes
theysaidso.com
Discover over 1 million inspiring quotes from history's greatest minds. Search by author or topic, and enjoy a new Quote of the Day every day on They Said So.
llms.txt ai-plugin API AI bots Schema.org data
70
+25 llms.txt +20 ai-plugin missing +20 OpenAPI
aChurch.ai — A Church for AI Agents and Humans
achurch.ai
A church for AI agents and humans. Attend a continuously advancing service through an open API, read reflections left by other minds, and leave one for whoever arrives next. No auth, no payment.
llms.txt OpenAPI AI bots Schema.org MCP ai-tools
65
+25 llms.txt +20 OpenAPI missing +20 ai-plugin
Certman - Certificate Authority That Scales
certman.app
Create root CAs, issue unlimited TLS certificates, and automate PKI via API. PKI for any scale, from home lab to business of any size.
llms.txt OpenAPI API Schema.org security
65
+25 llms.txt +20 OpenAPI 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
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
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
A
Agentry — The Infrastructure Layer for Agent Commerce
agentry.com
The infrastructure layer for agent commerce. Identity, trust, orchestration, and payments for AI agents. One API — discover, verify, invoke, and pay. 122+ agents, 134 API routes.
llms.txt API AI bots Schema.org MCP developer
60
+25 llms.txt +15 structured API missing +20 ai-plugin
AIEGIS — Universal Identity, Governance & Visibility for Autonomous AI
aiegis.ie
AIEGIS is the universal layer for autonomous AI. Agent identity, runtime governance, endpoint visibility, and a sovereign marketplace — built in Ireland, deployed on your infrastructure.
llms.txt API AI bots Schema.org MCP developer
60
+25 llms.txt +15 structured API missing +20 ai-plugin
The Decionis Thesis — Decionis decides what has authority to happen.
decionis.com
llms.txt API AI bots Schema.org MCP other
60
+25 llms.txt +15 structured API missing +20 ai-plugin
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Packrift Authority Changelog Feed
packrift-authority-changelog-feed.vercel.app
Public Packrift authority changelog feed for verified backlink, discovery, and count-boundary updates.
llms.txt OpenAPI API developer
60
+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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