Anvil SDK

What it does

Anvil is a backend framework built for a world where APIs get called by both browsers and AI agents. Write one route file, you get a REST endpoint, an MCP tool, and an A2A skill, all sharing the same schema, checked at build time. No hand-wiring MCP SDKs on top of Express, no duplicating validation across three layers.

Anvil JS is a Node.js backend framework with file-based routing, compile-time validation, and a native agentic layer — MCP, tools, tracing, and agents built in.

Use this file to discover all available pages before exploring further. Anvil JS is a Node.js backend framework with file-based routing, compile-time validation, and a native agentic layer — MCP, tools, tracing, and agents built in. import type { Context } from 'anvil' ; export default async function handler ( ctx : Context ) { return { message: 'Hello from Anvil!' }; } 3 Start the dev server import { z } from 'zod' ; import type { Context } from 'anvil' ; export const meta = { mcp: { expose: true , description: 'Fetch a user by ID' } }; export const paramsSchema = z . object ({ id: z . string () }); export default async function handler ( ctx : Context ) { return findUser ( ctx . params .…from anvil.thatdevguy.in

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