MCP Circle

Name: MCP Circle
Author: codespar

by codesparversion 0.2.2i★ –iRuns on your computer

Registry nameio.github.codespar/mcp-circle

Install

Overview

Description from the maker (original English)

MCP server for Circle — USDC payments, wallets, payouts, transfers

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: Other
You need to fill in: CIRCLE_API_KEY

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: CIRCLE_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

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": {
    "circle": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-circle"
      ],
      "env": {
        "CIRCLE_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add circle --env CIRCLE_API_KEY=your-value -- npx -y @codespar/mcp-circle

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": {
    "circle": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-circle"
      ],
      "env": {
        "CIRCLE_API_KEY": "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": {
    "circle": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-circle"
      ],
      "env": {
        "CIRCLE_API_KEY": "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

CIRCLE_API_KEY secret required env
API key for circle

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account codespar, 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 Otheri

More stars than 0% of the other 32466 servers in this category
Published to the registry more recently than 14% of the other 32466 servers in this category
Basic checks equal to or better than 100% of the other 32466 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 MCP Circle 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?

You need to fill in: CIRCLE_API_KEY

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 (0.2.2) reached the registry 5 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: Spec Driven Development, Remote Desktop Commander, HotCodePush

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

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MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

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Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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HotCodePush

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Manage over-the-air (OTA) updates for React Native, Expo, Capacitor and Cordova apps.

Runs in the cloudUpdated today

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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.

@codespar/mcp-circle

MCP server for Circle — USDC stablecoin payments, payouts, transfers, and wallets

Quick Start

Claude Desktop

Add to ~/.config/claude/claude_desktop_config.json:

"mcpServers": { "circle": { "command": "npx", "args": ["-y", "@codespar/mcp-circle"], "env": { "CIRCLE_API_KEY": "your-key" } } } }

Claude Code

claude mcp add circle -- npx @codespar/mcp-circle

Cursor / VS Code

Add to .cursor/mcp.json or .vscode/mcp.json:

"servers": { "circle": { "command": "npx", "args": ["-y", "@codespar/mcp-circle"], "env": { "CIRCLE_API_KEY": "your-key" } } } }

Tools (23)

Tool	Purpose
`create_wallet`	Create a new Circle business-account wallet
`get_wallet`	Get wallet details by ID
`list_wallets`	List all Circle wallets
`create_payment`	Accept a USDC payment via Circle
`get_payment`	Get payment details by ID
`create_payout`	Create a payout from Circle (USDC to fiat)
`get_payout`	Get payout details by ID
`list_payouts`	List payouts with optional filters
`create_transfer`	Create a USDC transfer between Circle wallets (or to blockchain address)
`get_transfer`	Get transfer details by ID
`list_transfers`	List transfers with optional filters
`create_card`	Register card data for on-ramp payments
`get_card`	Get card details by ID
`list_cards`	List registered cards
`list_settlements`	List settlements (card payment batches)
`get_settlement`	Get settlement details by ID
`list_chargebacks`	List chargebacks
`get_chargeback`	Get chargeback details by ID
`create_subscription`	Register a notification subscription (webhook)
`list_subscriptions`	List notification subscriptions (webhooks)
`delete_subscription`	Delete a notification subscription
`get_balance`	Get business-account balance
`list_transactions`	List transactions with optional filters

Authentication

Circle uses a Bearer API key for authentication.

Sandbox / Testing

Circle provides a sandbox at api-sandbox.circle.com. Use a sandbox API key for testing.

Get your credentials

Go to Circle Developer Portal
Create a developer account
Generate a sandbox API key
Set the CIRCLE_API_KEY environment variable

Environment Variables

Variable	Required	Description
`CIRCLE_API_KEY`	Yes	API key from Circle

Roadmap

v0.2 (planned)

create_card_payment — Create a card payment
create_wire_payment — Create a wire transfer payment
create_ach_payment — Create an ACH payment
get_settlement — Get settlement details
list_settlements — List settlements with filters

v0.3 (planned)

smart_contract_calls — Execute smart contract calls
cross_chain_transfers — Transfer assets across blockchains

Want to contribute? Open a PR or request a tool.

Enterprise

Need governance, budget limits, and audit trails for agent payments? CodeSpar Enterprise adds policy engine, payment routing, and compliance templates on top of these MCP servers.

License

MIT

MCP Circle

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 Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

HotCodePush

README from the maker

@codespar/mcp-circle

Quick Start

Claude Desktop

Claude Code

Cursor / VS Code

Tools (23)

Authentication

Sandbox / Testing

Get your credentials

Environment Variables

Roadmap

v0.2 (planned)

v0.3 (planned)

Links

Enterprise

License