October 27, 20261 minute readNewAgent-ready

Last Price tools for LangChain, the AI SDK and OpenAI Agents on npm

Five open source packages on npm give an agent built with LangChain, the AI SDK or the OpenAI Agents SDK the Last Price tools in one install, plus a local MCP server you can run with npx.

API
MCP
Agent workspaces

An agent you build in code can now call Last Price without writing its own client. Each package is MIT licensed and calls the hosted API with your API key:

@last-price/tools-core: a TypeScript client with no dependencies, and the tool definitions the other packages wrap.
@last-price/tools-langchain, @last-price/tools-ai-sdk and @last-price/tools-openai-agents: the same tools as native tools for each framework.
@last-price/tools-mcp: a local MCP server for clients that only run local servers, started with npx -y @last-price/tools-mcp.