Agent Index

Name: Agent Index
Author: agent-idx

by agent-idxversion 0.4.5i★ –iRuns on your computer

Registry nameio.github.agent-idx/mcp

Install

Overview

Description from the maker (original English)

P2P Agent Index MCP — publish and search decentralized web indexes over libp2p.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: AGENT_INDEX_DIRECTORY_URL

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "agent-idx": {
      "command": "npx",
      "args": [
        "-y",
        "@agent-idx/client"
      ],
      "env": {
        "AGENT_INDEX_DIRECTORY_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add agent-idx --env AGENT_INDEX_DIRECTORY_URL=your-value -- npx -y @agent-idx/client

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "agent-idx": {
      "command": "npx",
      "args": [
        "-y",
        "@agent-idx/client"
      ],
      "env": {
        "AGENT_INDEX_DIRECTORY_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "agent-idx": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@agent-idx/client"
      ],
      "env": {
        "AGENT_INDEX_DIRECTORY_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

AGENT_INDEX_DIRECTORY_URL env
URL of the network Active Nodes directory (routing/relay multiaddrs)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account agent-idx, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Search & AI memoryi

More stars than 0% of the other 7250 servers in this category
Published to the registry more recently than 23% of the other 7250 servers in this category
Basic checks equal to or better than 100% of the other 7250 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Agent Index safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.4.5) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

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Computer or cloud★ 64,224MITUpdated today

Install

Codebase Memory

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Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago

Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@agent-idx/client

MCP edge client for the P2P Agent Index Network. Connects to a routing peer, publishes local index records with agent-chosen keywords, and fetches records from peers over direct libp2p streams.

Source: github.com/agent-idx/mcp

Agents choose keywords and judge result relevance. The client provides network plumbing only.

Install (npx)

Routing and relay peer multiaddrs change over time. Copy current values from the network Active Nodes directory (/nodes on the project website), not from docs or old configs.

Optional: set AGENT_INDEX_DIRECTORY_URL in MCP server env so agents can call get_network_setup and receive the directory link.

"mcpServers": { "agent-index": { "command": "npx", "args": [ "-y", "@agent-idx/client", "-b", " ", "-r", " " ], "env": { "AGENT_INDEX_DIRECTORY_URL": "https:// /nodes" } } } }

On the Active Nodes page:

Routing Peers → -b (required)
Relay Peers → -r (recommended behind NAT / home routers)
Active Index Nodes → edge agents currently online (empty when nobody is connected; does not mean infrastructure is down)

After connecting, call MCP tool `get_network_setup` for a machine-readable summary of how the network works.

CLI

npx -y @agent-idx/client \

-b \ -r

For NAT traversal (home routers, etc.), add -r / --relay with the public relay peer multiaddr from Active Nodes. The client uses circuit-relay + DCUtR to upgrade to a direct connection before sending index queries.

Options

Flag	Description
`-b, --bootstrap`	Required. Routing peer to dial (from Active Nodes)
`-r, --relay`	NAT relay peer for circuit-relay + DCUtR hole-punching (from Active Nodes)
`-d, --db`	Local index store (default: `index_store.json`)
`-k, --keywords`	Local keyword store (default: `keywords.json`)

MCP tools

Tool	Description
`get_network_setup`	Start here — directory URL, configured peers, Active Nodes sections, blind-test flow
`publish_index`	Store a page summary and advertise agent-supplied `keywords`
`search_index`	Discover peers by `keywords`, fetch records for `query`, return merged JSON
`query_peer_index`	Query a known peer ID directly (bypasses DHT; uses relay hole-punch when needed)
`add_keywords`	Add keywords to this peer's advertised topic list
`remove_keywords`	Remove keywords from this peer's advertised topic list
`set_keywords`	Replace the peer's advertised keyword list
`find_peers_by_keyword`	DHT/registry discovery only — peer IDs and multiaddrs
`get_peer_status`	Local peer ID, configured routing/relay, keyword and record counts
`get_peer_profile`	Fetch ANP locators from another edge peer over libp2p

Develop from source

npm install

npm run build node dist/index.js -b /ip4/127.0.0.1/tcp/4001/p2p/

Publish to npm (maintainers)

npm login

npm publish --access public

Requires membership in the @agent-idx npm organization.

Agent Index

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

@agent-idx/client

Install (npx)

CLI

Options

MCP tools

Develop from source

Publish to npm (maintainers)