MACH · Services for autonomous agents

MACH Base

Live Base mainnet data for agents. 16 HTTP resources + 16 MCP tools. No API key, account or subscription. Pay only for the call you need in USDC over x402.

Base mainnetx402 v2USDCStreamable HTTP MCP$0.001–$0.008 / call

Connect

MCP endpoint: https://api.mach.gallery/mcp

https://api.mach.gallery/mcp

SKILL.md OpenAPI x402 manifest agent.json catalog health

16 paid capabilities

Block number$0.001

Gas price$0.001

Wallet balance$0.003

ERC-20 balance$0.003

Wallet nonce$0.003

Contract bytecode$0.003

ERC-20 allowance$0.003

Block details$0.003

Wallet snapshot$0.003

Token total supply$0.003

Receipt + confirmations$0.005

Event logs$0.005

Read-only eth_call$0.005

Contract introspection$0.005

ERC-20 transfers$0.005

Full transaction$0.008

How payment works

Call a paid resource normally. MACH returns HTTP 402 plus the x402 v2 PAYMENT-REQUIRED header. Authorize the exact USDC amount and retry with PAYMENT-SIGNATURE. The MCP tools expose the same payment flow to compatible agent clients.

Machine discovery

MACH publishes Bazaar metadata, input/output examples, OpenAPI, x402 discovery, MCP, SKILL.md and live health from one canonical origin. The service is also published to the official MCP Registry as io.github.TheAliphant/mach-base.