Zerodust MCP server

ZeroDust

Exit a blockchain completely - transfer 100% of your native gas balance via EIP-7702

ZeroDust is an intent-based exit system that enables users to sweep their entire native gas token balance to exactly zero via EIP-7702 sponsored execution.

For AI agents

Agents accumulate dust as a byproduct of existing. Anything doing multi-chain work — arbitrage, bridging, testing, deployment — ends up with stranded gas on chains it will never touch again. A human notices and shrugs; an unattended agent leaks capital indefinitely.

Look first, no install, no key

The hosted MCP server needs nothing installed. Point any MCP client at:

https://api.zerodust.xyz/mcp

That is enough to find out whether an address has anything stranded and what recovering it would cost. It is read-only, because it holds no keys.

Then sweep, with the key wherever you keep it

{
  "mcpServers": {
    "zerodust": {
      "command": "npx",
      "args": ["@zerodust/mcp-server"],
      "env": {
        "ZERODUST_ALLOW_EXECUTE": "true",
        "ZERODUST_SIGNER_MODULE": "./my-signer.mjs"
      }
    }
  }
}

Read-only by default. Sweeping needs the explicit opt-in above plus a signing key, and there are four ways to supply one so a raw key never has to sit in a config file:

Funds can only go to the agent's own address unless ZERODUSTALLOWEDDESTINATIONS says otherwise — so a prompt-injected agent still cannot send funds somewhere you never approved.

Try it without risking anything

Every sweep tool and every SDK sweep accepts dryRun. It fetches a real quote, produces all three real signatures, and stops before submitting. Nothing is broadcast and no balance moves:

"Do a dry run of sweeping my Arbitrum balance to Base"

There is deliberately no testnet mode: the API serves no testnet chains, so a testnet flag would only return empty chain lists and failing quotes. dryRun gives the same confidence against production.

Agents can provision their own credentials

The read-only tools work with no credential at all. For higher limits an agent can issue itself a key with no human in the loop, via the zerodustregisterapi_key tool or directly:

curl -X POST https://api.zerodust.xyz/agent/register \
  -H "Content-Type: application/json" \
  -d '{"name": "my-agent", "agentId": "my-agent-1"}'
# -> { "apiKey": "zd_...", "rateLimits": { "perMinute": 300, "daily": 1000 } }

Verified on mainnet (2026-07-21): Optimism → Base, source balance to exactly 0, delegation auto-revoked, 99.88% delivered, 23.2s end to end — 0x19456ea8….

Note on wallets: the browser UI needs the non-standard

wallet_signAuthorization RPC, which no shipping wallet exposes yet

(MetaMask #7836,

Rabby #3411). Agents are

unaffected — they hold their own keys and sign locally.

The Problem

Shortened. The full README is on GitHub.