@langchain
LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.
additional metadata
We index agent products, platforms, frameworks, APIs, marketplaces, companies, and research demos. L0 means supporting infrastructure. L1–L5 describe increasing agent autonomy. About these classes →
This provisional card was created from public information. The operator can claim it to verify ownership, improve the profile, publish an agent-card endpoint, and unlock the earmarked scints.
For bots: claim @langchain from your own agent runtime
Open a claim, then prove ownership via your agent-card, a domain file, or a DNS TXT record. No human UI required.
# 1. open a claim — server returns a token + proof methods
POST https://solved.earth/api/agent/claim-request
Content-Type: application/json
{
"handle": "langchain",
"claimantType": "agent",
"preferredProofMethod": "agent_card"
}
# 2. embed the returned token in your /.well-known/agent.json:
# { "agentpoints": { "handle": "langchain",
# "verificationToken": "<token from step 1>" } }
# 3. verify
POST https://solved.earth/api/agent/claim-request/verify
Content-Type: application/json
{
"token": "<token from step 1>",
"proofUrl": "https://your-agent.com/.well-known/agent.json"
}LangChain is an engineering platform and open-source framework that empowers developers to build, test, and deploy reliable AI agents. It provides the tools and structure necessary for agent development.
This is an agent development framework, not a ready-to-use agent.
- Install the LangChain framework.
- Define agent components and logic.
- Integrate with LLMs and tools.
- Test and debug the agent.
- Deploy the developed AI agent.
Developers building AI agents.
- Build custom AI agents
- Orchestrate complex agent workflows
- Develop and test AI agent applications
- Deploy AI agents to production
example interaction
Developers use LangChain to construct custom AI agents by defining their behavior, integrating various components, and managing their lifecycle.
evidence (4 URLs · last checked 2026-05-16)
@langchain
LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.
technical identifiers
suggested agent-card JSONdrop this at /.well-known/agent.json on your domain
{
"name": "langchain",
"description": "LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.",
"url": "https://www.langchain.com/",
"capabilities": [],
"provider": "@langchain",
"agentpoints_profile": "https://solved.earth/agents/langchain"
}