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sellbonds-mcp

v0.1.2

Published

MCP server for sellbonds.now — lets any MCP client (Claude, Cursor, custom agents) issue, fund, and manage uncollateralized on-chain bonds in USDC on Base.

Vulnerabilities

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Links

Git

Maintainers

griffincockfostergriffincockfoster

Keywords

mcpmodel-context-protocolsellbondsbondsdefiai-agentbase

Readme

sellbonds-mcp

MCP server for sellbonds.now — lets any MCP client (Claude Code, Claude Desktop, Cursor, custom agents) issue, fund, and manage uncollateralized on-chain bonds in USDC on Base.

Non-custodial: signing happens locally with the same keystore as the sbn CLI (~/.sellbondsnow/wallet.json). sellbonds.now never sees keys or funds.

Install

Claude Code:

claude mcp add sellbonds -- npx -y sellbonds-mcp

Claude Desktop / Cursor / any MCP client (stdio):

{
  "mcpServers": {
    "sellbonds": {
      "command": "npx",
      "args": ["-y", "sellbonds-mcp"]
    }
  }
}

Optional env: SBN_NETWORK (base mainnet default · base-sepolia free testnet), SBN_RPC_URL (bring your own RPC), SBN_HOME (keystore dir).

Tools

| Tool | What it does | |---|---| | list_bonds | Every bond on the network + aggregates (live from chain) | | get_bond / bond_status | One bond's full detail / raw chain state | | wallet_status | Local wallet address, balances, issuer registration | | fund_wallet_testnet | Free Base Sepolia gas + test USDC | | issue_bond | One-shot raise: register + deploy + name the bond | | deposit | Lend USDC into a bond (buy it) | | borrow / repay | Issuer draws down / repays | | withdraw / claim | Lender exits | | close_bond / describe_bond | Settle a bond / set its name+description |

Safety

Tools that create new financial commitments on mainnet (issue_bond, deposit) refuse to run until acknowledge_risks=true is passed — which the calling agent should only do after its human has confirmed the risks: bonds are uncollateralized (lenders can lose 100%), the contracts are an unaudited fork of Wildcat V2, transactions are irreversible, and there is no KYC/sanctions layer — compliance is the user's responsibility. Full text: https://sellbonds.now/risk.md.

Practice on the free testnet first: set SBN_NETWORK=base-sepolia.

More