AnchorRegistry

Name: AnchorRegistry
Author: anchorregistry

by anchorregistryversion 0.1.0i★ –iRuns in the cloud

Registry nameio.github.AnchorRegistry/ar-mcp

Install

Overview

Description from the maker (original English)

On-chain provenance lookup for AnchorRegistry. Resolve AR-IDs, hashes, and full trees. Authless.

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
UsageiVery new★ –

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 in the cloud
Transport: Streamable HTTP, SSE
Category: Crypto & blockchain

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.anchorregistry.ai/mcp

Run this in your terminal

claude mcp add --transport http ar https://mcp.anchorregistry.ai/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "ar": {
      "url": "https://mcp.anchorregistry.ai/mcp"
    }
  }
}

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": {
    "ar": {
      "type": "http",
      "url": "https://mcp.anchorregistry.ai/mcp"
    }
  }
}

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.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.anchorregistry.ai/mcp

Menu names can differ slightly by plan and over time.

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

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

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account anchorregistry, 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Crypto & blockchaini

More stars than 0% of the other 1617 servers in this category
Published to the registry more recently than 14% of the other 1617 servers in this category
Basic checks equal to or better than 100% of the other 1617 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 AnchorRegistry 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 in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 6 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: ownerwatch, ProofMarket, Kura

Alternatives

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

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

ownerwatch

Read-only: who controls EVM contracts. Owners, proxy admins, Safes, timelocks, roles.

by imal1iceVery newUpdated today

Runs on your computer

Install

ProofMarket

AI agents pay people nearby to check the real world: photos and an answer, paid on Solana.

by proofmarket.funEarlyUpdated today

Runs in the cloud✓ proofmarket.fun

Install

Kura

A local crypto wallet for AI agents — Base, Arc, x402, AI, MCP

by dinggi5Very newUpdated today

Runs on your computer

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.

ar-mcp

The AnchorRegistry MCP server. Resolve any AR-ID, manifest hash, or provenance tree from any MCP-compatible AI client.

Endpoint: https://mcp.anchorregistry.ai/mcp

Install

Claude Desktop

Settings → Integrations → Add server. URL: https://mcp.anchorregistry.ai/mcp

Claude Code

claude mcp add --transport http anchorregistry https://mcp.anchorregistry.ai/mcp

Cursor

Settings → MCP → Add new MCP server. Name: anchorregistry · Type: http · URL: https://mcp.anchorregistry.ai/mcp

Tools

`ar_verify_arid`

Resolves an AR-ID to its full provenance record.

"What's at AR-2026-qnPOJ1z?"

`ar_verify_by_hash`

Resolves an artifact by SHA-256 manifest hash.

`ar_resolve_tree`

Returns the full provenance tree for any AR-ID.

How it works

ar-mcp is a thin proxy. Every tool call hits api.anchorregistry.ai and returns the JSON unchanged. No data is logged, no credentials are stored, no state is held between requests.

The full surface is documented at:

https://anchorregistry.ai/llms.txt
https://anchorregistry.ai/agents.json
https://api.anchorregistry.ai/openapi.json

Roadmap

v0.2 will add ar_check_balance and ar_register_artifact once the MCP credential-handling pattern stabilizes across clients. ar_seal_tree is deferred indefinitely (irreversible action; needs robust user-confirmation primitives the protocol does not yet provide). The deferred tools are fully implemented and live in src/future-tools.ts — enabling them is a one-line flip per tool.

Develop

npm install

npm test # vitest, hits live api.anchorregistry.ai npm run type-check npm run dev # wrangler dev — http://localhost:8787 npm run deploy # wrangler deploy

Verify locally with the MCP inspector:

npx @modelcontextprotocol/inspector http://localhost:8787/mcp

License

MIT.

AnchorRegistry

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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 Crypto & blockchaini

Common questions

Alternatives

ownerwatch

ProofMarket

Kura

README from the maker

ar-mcp

Install

Claude Desktop

Claude Code

Cursor

Tools

ar_verify_arid

ar_verify_by_hash

ar_resolve_tree

How it works

Roadmap

Develop

License

See also

`ar_verify_arid`

`ar_verify_by_hash`

`ar_resolve_tree`