lordevo-x402 (Python)

Python client for the pay-per-call checks at shop.lordevo.com. It has 33 web, DNS, email and domain tools for AI agents, priced from $0.01 per call and paid with x402 (USDC on Base). There's no account or API key: each call is one micro-payment from the agent's wallet. Calls that fail or get refused (4xx/5xx) are never charged. LangChain and CrewAI tools are included.

pip install lordevo-x402            # free helpers
pip install "lordevo-x402[pay]"     # paid calls (x402 + eth-account)
pip install "lordevo-x402[pay,langchain]"   # or [pay,crewai]

Quickstart

Free calls need no wallet:

from lordevo_x402 import ask, quote, catalog

ask("dns-lookup example.com")            # A2A router: the endpoint, price and payment terms
quote("can-fetch", "https://example.com/blog")   # live x402 terms from the HTTP 402, nothing is paid
len(catalog()["quick_checks"])           # 33

Paid calls need a Base wallet holding a little USDC:

import os
from lordevo_x402 import LordevoSync, Lordevo

lo = LordevoSync.from_private_key(os.environ["AGENT_WALLET_KEY"], max_price_usd=0.02)
lo.can_fetch("https://example.com/blog/post")    # robots.txt + AI-crawler gate, $0.01
lo.dns_lookup("example.com", type="MX")          # $0.01
lo.email_validate("jane@gmial.com")              # syntax + MX + disposable + typo hint, no SMTP, $0.01

# async
async with Lordevo.from_private_key(os.environ["AGENT_WALLET_KEY"]) as alo:
    await alo.link_check("https://bit.ly/xyz")

• max_price_usd (default 0.05): tools priced above it are refused before any request.
• cache_seconds: identical calls within the window are answered locally and not paid again.
• Errors raise LordevoError with status, code and charged.
• You can also pass your own paying client: Lordevo(x402HttpxClient(...)) or LordevoSync(x402_requests(...)).

LangChain and CrewAI

from lordevo_x402.langchain import langchain_tools
tools = langchain_tools(sync_client=lo, only=["can-fetch", "link-check", "dns-lookup"])

from lordevo_x402.crewai import crewai_tools
agent = Agent(role="Researcher", goal="...", backstory="...", tools=crewai_tools(lo, only=["can-fetch", "link-check"]))

Tools

These are the live prices from catalog.json. Call any of them with lo.call(slug, value, **options) or as a method (lo.dns_lookup).

Other ways in

Only check sites you are allowed to check. All checks are passive and read-only.

JavaScript package: lordevo-x402 on npm. Docs: shop.lordevo.com/llms.txt. MIT licence.