MCP server

MACH Base

io.github.TheAliphant/mach-base

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Investigate Base transactions, check wallet funds and contracts. Read-only MCP. USDC via x402.

Website

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

18

Token cost

About 2,901 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http mach-base https://api.mach.gallery/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.mach-base]
url = "https://api.mach.gallery/mcp"

Gemini CLI

{"mcpServers":{"mach-base":{"httpUrl":"https://api.mach.gallery/mcp"}}}

Cursor

{"mcpServers":{"mach-base":{"url":"https://api.mach.gallery/mcp"}}}

VS Code

{"servers":{"mach-base":{"type":"http","url":"https://api.mach.gallery/mcp"}}}

Antigravity

agy mcp add mach-base https://api.mach.gallery/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"mach-base","server_url":"https://api.mach.gallery/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"mach-base","server_url":"https://api.mach.gallery/mcp"}

Tools

• base_allowance ~214 tokens
  Check a Base token approval before an agent acts: return the ERC-20 allowance for one token, owner and spender. Does not grant approval. Costs $0.005 USDC via x402.
• base_block ~140 tokens
  Inspect a Base block by number or tag: retrieve its header and transaction hashes to investigate chain activity. Costs $0.005 USDC via x402.
• base_block_number ~89 tokens
  Check Base chain progress: return the latest mainnet block number for freshness checks and polling. This is not transaction confirmation. Costs $0.005 USDC via x402.
• base_contract_code ~140 tokens
  Tell a Base contract address from an externally owned account: return whether code is deployed and its bytecode size. Not a security audit. Costs $0.005 USDC via x402.
• base_contract_info ~139 tokens
  Identify a Base contract before interacting: inspect bytecode size, available token metadata and common interface signals. Not a security audit. Costs $0.005 USDC via x402.
• base_erc20_balance ~149 tokens
  Check a wallet’s USDC or ERC-20 balance on Base: return raw token units for a specified token contract and wallet address. Costs $0.005 USDC via x402.
• base_erc20_transfers ~278 tokens
  Find recent ERC-20 Transfer events on Base, optionally filtered by sender or recipient wallet. Results cover only the queried block window. Costs $0.005 USDC via x402.
• base_eth_call ~223 tokens
  Read Base contract state without broadcasting a transaction: run eth_call with supplied calldata and return the raw response. Costs $0.005 USDC via x402.
• base_gas_price ~85 tokens
  Check the current Base gas price in wei before estimating transaction fees. The quote alone is not the total transaction cost. Costs $0.005 USDC via x402.
• base_logs ~239 tokens
  Find Base smart-contract events in a bounded block range: return onchain logs filtered by contract address and optional topics. Costs $0.005 USDC via x402.
• base_nonce ~128 tokens
  Prepare a Base transaction: get a wallet’s current nonce without signing or broadcasting a transaction. Costs $0.005 USDC via x402.
• base_receipt ~146 tokens
  Check whether a Base transaction was mined and succeeded: return receipt status and confirmations. This does not prove the correct payee, token amount or service delivery. Costs $0.005 USDC via x402.
• base_total_supply ~134 tokens
  Check a Base ERC-20 or ERC-721 contract’s reported total supply. Contract data is not independently audited circulation. Costs $0.005 USDC via x402.
• base_transaction ~145 tokens
  Inspect a Base transaction by hash: retrieve sender, recipient, value, calldata and transaction fields. Use Transaction Context for receipt and confirmation status. Costs $0.008 USDC via x402.
• base_transaction_context ~156 tokens
  Investigate a Base payment timeout or failed transaction with transaction, receipt, gas and fee context. Onchain success is not proof that a specific USDC obligation or service delivery was met. Costs $0.008 USDC via x402.
• base_wallet_balance ~138 tokens
  Check whether a Base wallet has native ETH available for gas: return its balance in wei. Read-only; no wallet access or signing. Costs $0.005 USDC via x402.
• base_wallet_snapshot ~213 tokens
  Check a Base wallet’s funding context in one read: return native ETH and balances for up to ten specified ERC-20 contracts. No signing or custody. Costs $0.005 USDC via x402.
• mach_choose ~145 tokens
  Free decision layer: map an agent goal to the narrowest paid MACH Base capability, exact price, expected result fields and exact next request. Returns no live chain data and has no side effects.

Browse

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