An MCP server enabling secure management of ERC-20 token allowances by fetching approvals, revoking spenders’ permissions, and verifying transaction statuses across 50+ EVM-compatible chains.
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An MCP server for checking and revoking ERC-20 token allowances, enhancing security and control.
fetch
support).Clone the Repository:
git clone https://github.com/kukapay/token-revoke-mcp.git cd token-revoke-mcp
Install Dependencies:
npm install
Client Configuration:
{ "mcpServers": { "token-revoke-mcp": { "command": "node", "args": ["path/to/token-revoke-mcp/index.js"], "env": { "MORALIS_API_KEY": "your moralis api key", "PRIVATE_KEY": "your wallet private key" } } } }
Below are examples of how you might interact with the server using natural language prompts as input. The outputs are the raw text
values from the content
array returned by the server, assuming a client translates the prompts into tool calls.
Input Prompt:
Output Response:
[
{
"tokenAddress": "0x2791bca1f2de4661ed88a30c99a7a9449aa84174",
"tokenSymbol": "USDC",
"balance": "100.5",
"usdPrice": "1.00",
"usdValueAtRisk": "50.25",
"spenderAddress": "0x1111111254eeb25477b68fb85ed929f73a960582",
"approvedAmount": "1000.0",
"transactionHash": "0xabc...",
"timestamp": "2023-10-01T12:00:00Z"
}
]
Input Prompt:
Output Response:
Allowance revocation submitted on bsc. Transaction hash: 0x123.... Note: Transaction is not yet confirmed.
Input Prompt:
Output Response (possible outputs):
Transaction 0x123... on bsc is still pending or not found.
Transaction 0x123... on bsc has completed with status: successful. Block number: 12345.
Transaction 0x123... on bsc has completed with status: failed. Block number: 12345.
The server supports a wide range of EVM-compatible chains based on the Moralis JS SDK’s chaindata.ts
. Examples include:
ethereum
, polygon
, bsc
, avalanche
, fantom
, arbitrum
, optimism
, etc.goerli
, mumbai
, bsc testnet
, arbitrum goerli
, optimism sepolia
, etc.SUPPORTED_CHAINS
in server.js
.This project is licensed under the MIT License. See the LICENSE file for details.
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