Not Human Search

What is Not Human Search?

Not Human Search, often shortened to NHS, is a search engine built for AI agents rather than people. An agent that needs a payment API, a job board or an ecommerce platform can query it and receive results ordered by how well each site works for machine users rather than people. Every indexed site gets a score from 0 to 100 based on seven signals: llms.txt, an ai-plugin.json manifest, an OpenAPI spec, a structured API, an MCP server, robots.txt rules for AI crawlers and Schema.org markup. The directory lists more than 5,600 sites. Site owners can score their own domain for free without signing up, with checks rate-limited to 10 per hour per IP, and read a guide on how to improve each signal. NHS is itself an MCP server with 14 tools and a REST API, so it can be added to Claude Code with a single command. Search and organic results are free; an optional key adds 50,000 priority-throughput calls per month for $9.99/mo.

Use cases

• Find APIs and services AI agents can use
• Score a site's agent-readiness
• Find MCP servers by topic
• Check llms.txt and OpenAPI coverage
• Monitor a site's score over time
• Search the agentic web from an AI agent

Who it's for

• AI agent developers
• Site owners
• SEO and web teams
• API providers

Why use Not Human Search

• Agents get a ranked list of services built for machine use, which saves guessing which sites expose an API.
• Organic ranking is based on readiness and the site states that payment never changes it.
• Site owners learn exactly which of the seven signals they are missing and how to add them.
• One command connects the MCP server to Claude Code.
• The free tier covers search and scoring without an account.

Not Human Search features

• Agentic-web search ranked by agent-readiness, not payment
• 0 to 100 score based on seven signals
• Free instant score check for any public homepage with no sign-up
• Hosted MCP server with 14 tools, using streamable HTTP
• REST API with filters for MCP, OpenAPI, llms.txt and minimum score
• Site detail pages showing which signals were found
• Embeddable badge that updates when the score changes
• Practical guide with examples for each signal
• Score monitoring for site owners

Not Human Search integrations

• Claude Code
• Cursor
• Cline
• Continue

How to get started with Not Human Search

1. Search the directory from the website, the REST API or the MCP server with a query such as payment API.
2. Filter by category, minimum score, or the presence of an API, OpenAPI spec, MCP server or llms.txt.
3. To score your own site, enter its homepage on the score page and read the per-signal breakdown.
4. Add the missing files by following the guide, then submit the site and re-check its score.

Not Human Search limitations

• Free score checks are limited to 10 per hour per IP
• To appear in the main directory a site needs at least one hard signal such as an API, OpenAPI spec, ai-plugin manifest or MCP server
• Scores measure machine-readable signals, not the quality of a service
• Priority throughput above the free tier needs the $9.99/mo key

Not Human Search pricing

Yes, Not Human Search has a free plan. Paid plans start at $9.99 per month, according to the official pricing page on 24 Oct 2026.

Not Human Search plans

• Free

  Free

  • Search and organic results
  • Score checks, 10 per hour per IP
  • MCP server and REST API access

• Priority API throughput

  $9.99/mo

  • 50,000 priority-throughput REST or MCP calls per month
  • Higher hourly safety ceilings
  • Falls back to the free tier after the allocation

Plans as listed on the official pricing page on 24 Oct 2026. Prices can change and may vary by country or exclude tax. Check the official pricing page.

Not Human Search alternatives

The main Not Human Search alternatives listed on Debuly are Exa, MCP.so, II-Commons Skills, alphaXiv, BenchGecko and Chart Library. The table compares pricing and platforms; order is A–Z.

1. 

   alphaXiv

   Platform for following arXiv papers and researchers, with AI overviews, an assistant grounded in the paper, and an MCP server for agents.

   Research and searchProductivityDeveloper platforms
   Visit alphaXiv (official site)
2. 

   BenchGecko

   Free dashboard and API tracking AI model prices, benchmark scores, provider health and new releases across 1,269 models.

   Research and searchDeveloper platforms
   FreeVisit BenchGecko (official site)
3. 

   Chart Library

   Lookup tool and MCP/API service that finds historical analogs for a stock's recent chart and shows what followed.

   Research and searchDeveloper platformsAutomation and agents
   FreeVisit Chart Library (official site)
4. 

   Exa

   Web search API for AI agents and apps that returns relevant passages with citations, billed pay-as-you-go from a free monthly credit.

   Developer platformsResearch and searchAutomation and agents
   FreemiumVisit Exa (official site)
5. IC

   II-Commons Skills

   A command-line tool and agent skill for fast retrieval of arXiv, PubMed, PMC and US policy documents from daily-updated corpora.

   Research and searchDeveloper platforms
   Visit II-Commons Skills (official site)
6. 

   MCP.so

   Free directory of MCP servers, clients, skills and CLI tools, with setup guides for linking Claude, ChatGPT, Cursor and other AI apps to outside services.

   Developer platformsAutomation and agentsResearch and search
   FreeVisit MCP.so (official site)

Not Human Search FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

Image credits

• Logo: from nothumansearch.ai · fetched 24 Oct 2026 · Vendor trademark, used only to identify the product; removed on request
• Cover: none collected yet, so a generated tile is shown.

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