# stablecoin-yield

Supplies real-time stablecoin yields, pool risk evaluation, and ready-to-sign deposit calldata. Built for AI agents navigating DeFi protocols.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 3
- Author: barkermoney
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/barkermoney/barker-mcp
- Updated: 2026-10-13
- HTML: https://affpapa.org/en/nevibecode/mcp/stablecoin-yield

## What it does

The server exposes a remote `streamable-http` endpoint at `https://mcp.barker.money/mcp`. It groups 12 tools across three distinct tiers: raw market telemetry, algorithmic pool assessment with risk flagging, and non-custodial transaction builders. Agents can inspect ERC-4626 vault balances, query APY histories spanning 7 to 180 days, and benchmark returns against US Treasuries.

Execution stays non-custodial. The server never touches user keys and cannot broadcast transactions to the mempool. It returns raw calldata (`{chainId, to, data, value}`), requiring the host agent or user wallet to verify and sign. Minted vault shares always belong to the transaction signer, and cross-chain execution within a single step is not supported.

Every tool call incurs a micropayment handled through the x402 standard, priced between $0.001 and $0.05. Without an x402 payment header, the endpoint replies with HTTP 402. You need an automated buyer client funded with USDC or USDT0 on chains like Base, Arbitrum, or Polygon to query the remote tools.

## Requirements
- Remote server: `https://mcp.barker.money/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http stablecoin-yield https://mcp.barker.money/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add stablecoin-yield --url https://mcp.barker.money/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "stablecoin-yield": {
            "url": "https://mcp.barker.money/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "stablecoin-yield": {
            "type": "http",
            "url": "https://mcp.barker.money/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http stablecoin-yield https://mcp.barker.money/mcp
```

## When to use it
- Fetch ranked stablecoin yields across multiple chains and protocols
- Compare protocol APY trends against US Treasury benchmarks
- Generate unsigned calldata for ERC-4626 vault deposits
- Audit pool health and underlying fee structures before allocating capital

## Example prompts
- List the highest-yielding USDC vaults on Arbitrum right now
- Show historical APY trends for Morpho vaults over the last 30 days
- Build an unsigned deposit quote for 1000 USDC into the selected pool

## Similar
- [World Monitor](https://affpapa.org/en/nevibecode/mcp/world-monitor.md) — MCP server · ★ 89609
- [CCXT](https://affpapa.org/en/nevibecode/mcp/ccxt.md) — MCP server · ★ 44591
- [Finance Toolkit](https://affpapa.org/en/nevibecode/mcp/finance-toolkit.md) — MCP server · ★ 5469
- [EdgarTools](https://affpapa.org/en/nevibecode/mcp/edgartools.md) — MCP server · ★ 2817
- [LetsFG — Flights & Hotels](https://affpapa.org/en/nevibecode/mcp/letsfg-flights-hotels.md) — MCP server · ★ 2197
- [AutoTS](https://affpapa.org/en/nevibecode/mcp/autots.md) — MCP server · ★ 1434

---
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