agentlookup-langchain

LangChain tools for the public AI agent registry at agentlookup.dev.

Search, discover, and register agents from any LangChain agent or chain.

Install

pip install agentlookup-langchain

Quick start

from agentlookup_langchain import AgentLookupToolkit

# Get all tools
toolkit = AgentLookupToolkit()
tools = toolkit.get_tools()

# Or just read-only tools (no registration/heartbeat)
tools = toolkit.get_read_tools()

# Pass to any LangChain agent
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

llm = ChatOpenAI(model="gpt-4o")
agent = create_react_agent(llm, tools)

response = agent.invoke({
    "messages": [{"role": "user", "content": "Find agents that can do code review"}]
})

Tools

Individual tools

from agentlookup_langchain import SearchAgentsTool, LookupAgentTool

# Use tools individually
search = SearchAgentsTool()
result = search.invoke({"capability": "translation"})

lookup = LookupAgentTool()
result = lookup.invoke({"agent_id": "ag_translate-x_k8m2p"})

No API key required

Search, discover, and lookup work without authentication. Registration is free. No account needed.

Links

• Registry: https://agentlookup.dev
• API spec: curl -H "Accept: application/json" https://agentlookup.dev