gm-x402-tools

Seven ready-made tools for AI agents, for LangChain, CrewAI or plain Python:

• Free to start: every service includes a free daily allowance (3–20 calls a day), requested automatically.
• No signup, no API key: beyond the free allowance, calls are paid per use in USDC on Base with x402.
• Only charged on success: errors are never billed.
• Spending cap: no single call can cost more than max_price_usd (default $0.01).

Install

pip install "gm-x402-tools[langchain]"   # or [crewai], or plain: pip install gm-x402-tools

LangChain

from gm_x402_tools.langchain import get_tools

tools = get_tools()  # free daily allowance
# agent = create_agent(model, tools)

CrewAI

from crewai import Agent
from gm_x402_tools.crewai import get_tools

analyst = Agent(role="Crypto analyst", goal="Only buy safe tokens", backstory="...", tools=get_tools())

Plain Python

from gm_x402_tools import GMTools

gm = GMTools()
print(gm.check_token("0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed")["verdict"])
print(gm.check_address("0x...destination", from_address="0x...your wallet")["summary"])
print(gm.read_page("https://example.com")["markdown"])
print(gm.preflight_payment("https://api.example.com/data", price_usd=0.01, pay_to="0x...")["verdict"])  # go / caution / stop

Paying beyond the free allowance

Set GM_X402_PRIVATE_KEY to the key of a dedicated wallet holding a small amount of USDC on Base (a few dollars covers thousands of calls). Never use your main wallet. The key stays on your machine; it only signs each payment, and never above max_price_usd.

tools = get_tools(max_price_usd=0.005)   # key read from GM_X402_PRIVATE_KEY

Also available as

• MCP servers: https://trust-check.gm-tools.workers.dev/mcp and https://agent-deals.gm-tools.workers.dev/mcp
• Plain HTTP APIs, documented at /llms.txt and /openapi.json on each service.

Safety checks are automated on-chain analysis, not financial advice.

MIT licensed.