Show HN: Gram Functions – Serverless platform for turning code into LLM tools

Gram Functions is a serverless platform that converts user-written code into LLM tools and MCP servers, addressing limitations of REST APIs for agent use. It provisions fly.io machines to host code behind a Go server, allowing developers to curate small, context-aware MCP servers by cherry-picking tools from custom functions and OpenAPI documents.

Key Points

• •Gram Functions enables developers to write custom code and automatically deploy it as LLM-compatible tools without manual infrastructure setup
• •The platform provisions Fly.io machines to host user code behind a Go server that listens for tool calls from LLM agents
• •Users can curate small, focused MCP servers by cherry-picking tools from custom code and OpenAPI documents, reducing context bloat from massive servers
• •Get started immediately using `pnpm create @gram-ai/function` (or npm/bun equivalents) to scaffold a new function
• •Gram solves the problem that existing REST APIs are often unsuitable as LLM tools by allowing direct code-based tool creation
• •The dashboard provides a unified interface to manage multiple MCP servers, each tailored for specific agent use cases
• •Selective tool curation per agent prevents context bloat and improves LLM performance by limiting available tool scope
• •The platform combines code deployment, hosting, and MCP server generation into a single serverless workflow

Workflow Diagram

Concepts

Artifacts (3)

pnpm create @gram-ai/function

npm create @gram-ai/function

bun create @gram-ai/function