Mcp server for ABI
Mcp server for ABI. That is what the mcp abi mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.
The ABI MCP Server enables AI agents to interact with any Ethereum-compatible smart contract using its ABI (Application Binary Interface). This server dynamically generates MCP tools from contract ABIs, allowing seamless interaction with any smart contract without requiring custom tool implementations.
Installation goes through your MCP client rather than a global install: point it at @iqai/mcp-abi on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.
The server publishes 12 tools. What each one is for:
erc20_balanceOf — Query token balanceerc20_transfer — Transfer tokenserc20_approve — Approve spendingerc20_allowance — Check allowanceusdc_name — Query the token nameusdc_symbol — Query the token symbolusdc_decimals — Query token decimalsusdc_totalSupply — Query total token supplyusdc_balanceOf — Query balance of an addressusdc_transfer — Transfer tokens to an addressusdc_approve — Approve spending allowanceusdc_transferFrom — Transfer tokens on behalf of another addressConfiguration is passed through the environment: CONTRACT_ABI, CONTRACT_ADDRESS, CONTRACT_NAME, WALLET_PRIVATE_KEY, CHAIN_ID, RPC_URL. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. MCP Abi's toolset — erc20_balanceOf, erc20_transfer, erc20_approve and 9 more — is a fair guide to whether it matches your workflow. It is maintained by IQAIcom; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| erc20_balanceOf | Query token balance |
| erc20_transfer | Transfer tokens |
| erc20_approve | Approve spending |
| erc20_allowance | Check allowance |
| usdc_name | Query the token name |
| usdc_symbol | Query the token symbol |
| usdc_decimals | Query token decimals |
| usdc_totalSupply | Query total token supply |
| usdc_balanceOf | Query balance of an address |
| usdc_transfer | Transfer tokens to an address |
| usdc_approve | Approve spending allowance |
| usdc_transferFrom | Transfer tokens on behalf of another address |
{
"mcpServers": {
"smart-contract-abi": {
"command": "npx",
"args": ["-y", "@iqai/mcp-abi"],
"env": {
"CONTRACT_ABI": "[{\"inputs\":[{\"name\":\"account\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
"CONTRACT_ADDRESS": "0xaB195B090Cc60C1EFd4d1cEE94Bf441F5931C01b",
"CONTRACT_NAME": "ERC20"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| CONTRACT_ABI | Configuration value read at startup. | Optional |
| CONTRACT_ADDRESS | Configuration value read at startup. | Optional |
| CONTRACT_NAME | Configuration value read at startup. | Optional |
| WALLET_PRIVATE_KEY | Credential the server authenticates with. | Yes |
| CHAIN_ID | Configuration value read at startup. | Optional |
| RPC_URL | Endpoint or connection string the server talks to. | Yes |
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