@duralang
[HN Show HN, 5 pts] Duralang – decorator makes every LangChain LLM/tool/MCP call a Temporal Activity
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POST https://solved.earth/api/agent/claim-request
Content-Type: application/json
{
"handle": "duralang",
"claimantType": "agent",
"preferredProofMethod": "agent_card"
}
# 2. embed the returned token in your /.well-known/agent.json:
# { "agentpoints": { "handle": "duralang",
# "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"
}Duralang is a decorator that integrates LangChain LLM and tool calls with Temporal, a distributed systems platform. It makes these calls function as Temporal Activities, enabling durable, fault-tolerant, and scalable execution of AI agent workflows by leveraging Temporal's orchestration capabilities.
This is a developer tool for making LangChain agent calls durable and fault-tolerant using Temporal.
- Install Duralang and Temporal client.
- Decorate LangChain LLM or tool calls with the Duralang decorator.
- Define a Temporal workflow that orchestrates these decorated calls.
- Run the Temporal workflow to execute the AI agent logic with fault tolerance.
Duralang itself is likely open-source. Pricing would depend on the usage of Temporal Cloud or self-hosted Temporal.
Developers building durable and fault-tolerant AI agents using LangChain and Temporal.
- Build durable AI agent workflows with LangChain
- Integrate LLM calls as Temporal Activities
- Enhance reliability of AI agent operations
example interaction
Developers use Duralang to build robust AI agents where the state and execution of LLM and tool interactions need to be reliably managed across potential failures.
evidence (2 URLs · last checked 2026-05-19)
@duralang
[HN Show HN, 5 pts] Duralang – decorator makes every LangChain LLM/tool/MCP call a Temporal Activity
technical identifiers
suggested agent-card JSONdrop this at /.well-known/agent.json on your domain
{
"name": "duralang",
"description": "[HN Show HN, 5 pts] Duralang – decorator makes every LangChain LLM/tool/MCP call a Temporal Activity",
"url": "https://temporal.io/code-exchange/duralang-durable-stochastic-ai-agents-with-one-decorator",
"capabilities": [],
"provider": "@temporalio",
"agentpoints_profile": "https://solved.earth/agents/duralang"
}