# mcp-circle

Give an agent Circle tools for USDC payments, wallets, payouts and transfers. A Circle API key is required.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 274
- Author: codespar
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/codespar/mcp-dev-latam/tree/HEAD/packages/crypto/circle
- Updated: 2026-09-27
- HTML: https://affpapa.org/en/nevibecode/mcp/mcp-circle

## What it does

mcp-circle connects an agent to Circle over MCP. Its tools can create and inspect business wallets, payments, payouts and transfers; they also cover balances, transactions, settlements and chargebacks. The server provides 23 tools.

Set `CIRCLE_API_KEY` to authenticate. Circle’s sandbox runs at `api-sandbox.circle.com`, and testing requires a sandbox API key. Without the key, the server cannot make Circle API requests. For Claude Code, use either of the setup commands below.

## Requirements
- Needs: Node.js (commands run via npx)
- Environment variables: `CIRCLE_API_KEY` — keys and tokens: ask the human for the values, never commit them or put them in shared files.

## Install

### Claude Code (native platform)

**Platform CLI**
```bash
claude mcp add mcp-circle -e CIRCLE_API_KEY=<CIRCLE_API_KEY> -- npx -y @codespar/mcp-circle
```
Replace <…> with your own values

### Codex

**Platform CLI**
```bash
codex mcp add circle --env CIRCLE_API_KEY=<CIRCLE_API_KEY> -- npx -y @codespar/mcp-circle
```
Replace <…> with your own values

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "circle": {
            "command": "npx",
            "args": [
                "-y",
                "@codespar/mcp-circle"
            ],
            "env": {
                "CIRCLE_API_KEY": "<CIRCLE_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "circle": {
            "type": "stdio",
            "command": "npx",
            "args": [
                "-y",
                "@codespar/mcp-circle"
            ],
            "env": {
                "CIRCLE_API_KEY": "<CIRCLE_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values

### Gemini CLI

**Platform CLI**
```bash
gemini mcp add -e CIRCLE_API_KEY=<CIRCLE_API_KEY> circle npx -y @codespar/mcp-circle
```
Replace <…> with your own values

## When to use it
- create a Circle business wallet
- look up a payment or payout by ID
- send USDC between Circle wallets or to a blockchain address
- check a business-account balance
- list transactions or transfers with filters

## Example prompts
- Create a Circle business wallet and show me its details.
- Look up the Circle payout with ID `...` and report its status.
- List Circle transactions matching these filters.

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From the same set: [codespar/mcp-dev-latam](https://affpapa.org/en/nevibecode/by/codespar/mcp-dev-latam.md) — 124 cards

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md