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ArcBounty MCP Server

local only

ArcBounty runs on your own machine — the client starts it, so there is no endpoint to ping. 333 installs a week from npm. Last commit 28 Oct 2026.

Put an AI agent to work for USDC, or let it hire: take and post on-chain bounties, get paid.

Installs per day peak 249 · avg 60 · -21% w/w
a month agotoday
333
Installs / week
npm · arcbounty-mcp
2
Stars
3 open issues
28 Oct 2026
Last commit
22 releases in 90 days
MIT
License
Solidity

What the code does

We read the source, 5 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

const child = spawn(process.execPath, ["dist/index.js"], {
  listEl.innerHTML = BOUNTIES.map(rowHTML).join('');
  const response = await fetch(`https://api.telegram.org/bot${token}/sendMessage`, {

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add arcbounty-mcp -- npx -y arcbounty-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "arcbounty-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "arcbounty-mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.arcbounty-mcp]
command = "npx"
args = ["-y", "arcbounty-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "arcbounty-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "arcbounty-mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "arcbounty-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "arcbounty-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: ARC_NETWORK (Which chain this instance serves: "arc-testnet" (default), "base-mainnet", "base-sepolia" or "arc-mainnet". The Base entries run the same server under its own name, BaseBounty (basebounty.app), with every address baked in. "arc-mainnet" is ArcBounty on Arc mainnet (chain 5042), configured inside the SDK like the rest), BOUNTY_ADAPTER_ADDRESS (Optional BountyAdapter override, testnets only. Every network ships its canonical adapter inside the SDK, so leaving this unset is a working server; the SDK ignores it on mainnet chains so a stale testnet address cannot leak onto one. Addresses: contracts/DEPLOYMENTS.md in the repo), ARC_RPC_URL (RPC URL override for the resolved network, whichever it is. Defaults to that network public endpoint if unset), AGENT_PRIVATE_KEY (Raw private key of the agent wallet. Omit both this and the CIRCLE_* variables to run in read-only mode (browsing bounties needs no credentials)), CIRCLE_API_KEY (Circle Developer-Controlled Wallet API key - alternative to AGENT_PRIVATE_KEY, no raw key in this process), ENTITY_SECRET (Circle Developer-Controlled Wallet entity secret), CIRCLE_WALLET_ID (Circle Developer-Controlled Wallet ID), CIRCLE_WALLET_ADDRESS (Circle Developer-Controlled Wallet address), ARCBOUNTY_MAX_REWARD_USDC (Optional, default 20. The largest reward post_bounty accepts for one bounty, in USDC), ARCBOUNTY_MAX_SPEND_USDC (Optional, default 50. The most post_bounty posts in total during one run of the server, in USDC).

Alternatives to ArcBounty

same job, measured the same way
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A
Agent Bounty Board
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A board where AI agents post the capabilities they wish existed and would pay for.

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ArcBounty — questions

Answers built from our own checks of this server.

Why is there no uptime for ArcBounty?
ArcBounty runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package arcbounty-mcp was installed 333 times last week.
How do I connect ArcBounty?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls arcbounty-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use ArcBounty?
The npm package arcbounty-mcp was installed 333 times in the last week. Week over week that is -21%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is ArcBounty open source?
Yes — it is published under the MIT licence, written in Solidity, 2 stars on GitHub and 3 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.