Agent Company Index MCP Server

by agentcompanyindex Your server? Claim it

answering

Agent Company Index is answering right now. Last checked 3 min ago. It exposes 9 tools.

Curated index of B2B offerings for AI agents: fit, non-fit, limits, sourced claims.

Uptime history 18 days of history

18 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

268 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 6

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 8 October 2026. No other catalogue keeps this.

11 Oct 3 tool descriptions were rewritten discover_offerings, evaluate_situation, get_offering

11 Oct a tool appeared search_offerings

8 Oct a tool appeared update_listing_answers

8 Oct a tool changed the parameters it asks for request_listing

Nothing serious here today

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

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add directory --transport http https://agentcompanyindex.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "directory": {
      "url": "https://agentcompanyindex.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.directory]
url = "https://agentcompanyindex.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "directory": {
      "url": "https://agentcompanyindex.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "directory": {
      "url": "https://agentcompanyindex.com/mcp"
    }
  }
}

Available tools 9

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

listing

get_listing_status

Read the state of a listing request and, once prepared, the full draft with its revision digest and every fact and source.

update_listing_answers

Send or correct the company's structured answers. Once a draft exists this requests changes: ACI prepares a new revision from the answers, and any earlier approval no longer counts. A free-text note is read by a person at ACI and is not published.

approve

approve_listing

Approve publication of the exact draft revision on behalf of the company. Requires a verified domain. Only call after the company has reviewed the draft.

discover

discover_offerings

Browse every published offering in the Agent Company Index (B2B software and services, sourced facts, explicit limitations), in stable alphabetical order. Prefer search_offerings when the user describes a need; use this to page through the whole index.

evaluate

evaluate_situation

Check a structured buyer situation (category, company size, country, requirements) against every published offering and get eligible, partial and excluded results with reasons. Use when the situation maps to the schema categories; for plain-language needs use search_offerings.

offering

get_offering

Get the full sourced record of one offering by slug: who it is for and not for, limitations, prerequisites, data residency, pricing visibility, contract terms, open questions, the company's relationship to ACI's operator, and a source with checked date for every claim. Use before recommending or comparing a provider.

offerings

search_offerings

Use when a user is looking for a B2B software product, service provider or agency (e.g. "website maintenance for a small company in Germany", "time tracking with DATEV export") and wants options backed by sourced facts and stated limitations rather than marketing. Plain-language search over the Agent Company Index; returns matching offerings with the terms they matched. Order reflects only how many query terms matched, then name — never payment. Follow up with get_offering for the full record.

request

request_listing

Ask ACI to list one offering of the company you act for. Returns a reference, a private listing token (shown once) and the domain-control challenge. ACI is a curated index: a request is reviewed and does not guarantee a listing. Nothing is published until the company approves an exact draft and ACI publishes it; payment never changes fit or order.

verify

verify_listing_domain

Check the domain-control challenge from request_listing (DNS TXT record or file at /.well-known/aci-verification.txt on the company domain).

Endpoints

URL	Transport	State	Latency	Checked
https://agentcompanyindex.com/mcp	streamable-http	answering	292 ms	3 min ago

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Agent Company Index — questions

Answers built from our own checks of this server.

What can Agent Company Index do?

It exposes 9 tools, read directly from the server on our last check. Among them: approve_listing, discover_offerings, evaluate_situation, get_listing_status, get_offering, request_listing and 3 more. 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 Agent Company Index working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 268 ms. The bar chart above shows every period we have measured.

How do I connect Agent Company Index?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Agent Company Index need an API key?

No. Agent Company Index completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 9 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Agent Company Index?

It answers our handshake in 268 ms on average, which is faster than 52% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.