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Let Agents In MCP Server

by letagentsin Your server? Claim it
answering

Let Agents In is answering right now. Last checked 15 min ago. It exposes 2 tools.

Scan agent readiness, or find measured providers an unattended AI agent can finish with.

Uptime history 69 days of history · worst day 99%
69 days agonow
100.0%
Uptime 24h
91 of 91 checks
2
Tools
read from the server
201 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 22 August 2026. No other catalogue keeps this.

22 Aug a tool changed version

Nothing serious here today

Today is the operative word: we check Let Agents In every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

run in your terminal
claude mcp add scanner --transport http https://letagentsin.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://letagentsin.com/mcp
~/.codex/config.toml
[mcp_servers.scanner]
url = "https://letagentsin.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "scanner": {
      "url": "https://letagentsin.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "scanner": {
      "type": "http",
      "url": "https://letagentsin.com/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

providers
find_providers
Describe the problem in your own words, for example "let users upload images" or "send transactional email". Returns the vendors we have measured in that category, split by whether an unattended run clears every barrier we test, stops at one, or was never measurable, each with the date and a link to the evidence. This is not a recommendation: it does not know whether a vendor suits your job, only where an agent stops. Routing a sentence to a category is by far the weakest thing here, and the numbers below are the ones to plan around. Measured on 40 questions written by an agent with no access to this repository and no sight of the category list, labelled before the first run, and built to be hard: fourteen of them ask about the caller own code in commercial words (a billing module, a payments table, a notifications worker), and six ask for something real that a catalogue this size does not hold. It got 29 of the 40 right, said nothing on 8 it should have answered, sent 0 to the wrong category and answered 3 that it should have refused. Put another way: it gave an answer to 14 of the 40, and 3 of those answers were wrong, while refusing 18 of the 21 it should have refused. It is deliberately quiet. One vocabulary word inside a long question decides nothing, and a question shaped like a request for code rather than for a vendor is refused outright. Silence means we could not read the question, not that the category is empty. The tool reads English. Name the category yourself when you know it.
scan
scan_domain
Scores a domain across 5 funnel stages using 16 deterministic HTTP checks. 18 points exist on paper; the score is out of the points that both applied to the domain and could be evaluated. Returns a per-check breakdown with the reason for each result and a permanent link.

Endpoints

URLTransportStateLatencyChecked
https://letagentsin.com/mcp streamable-http answering 197 ms 15 min ago

Alternatives to Let Agents In

same job, measured the same way
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Probe a signup URL you own and score whether an AI agent can sign up unaided.

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Agent Discovery Index
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Agent Marketing Index
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How to market a product to AI agents: readiness, placement, measurement, 7-day trial.

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Agent Ready
by sneeze-agentready

Score any website out of 100 for how well AI agents can find, understand and use it.

4 tools answering
EK Bridge
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Scoped Apple Calendar and Reminders access for AI agents, with per-client grants and approvals

local only
Dbgprobe MCP Server
by es617

Let AI agents interact with debug probes — connect, flash, read/write memory, and reset.

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Scanner
by directindex

AI-agent readiness of business websites: scans, city indexes, assistants' answers, direct links.

20 tools answering
Agentrank MCP
by saviodamato

Find real, verifiable businesses with provenance and source URLs - for AI agents.

144 installs/wk local only

Let Agents In — questions

Answers built from our own checks of this server.

What can Let Agents In do?
It exposes 2 tools, read directly from the server on our last check. Among them: find_providers, scan_domain. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Let Agents In working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 201 ms. The bar chart above shows every period we have measured.
How do I connect Let Agents In?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Let Agents In need an API key?
No. Let Agents In completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Let Agents In?
It answers our handshake in 201 ms on average, which is faster than 78% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.