@axiestudio/tool

Zero-dependency fetch wrappers that replace MCP servers for AI agent workflows. Every tool shares the same invoke(toolName, args) interface — no installation, no daemon, no config. Just import and call.

Works with Node.js (18+), Bun, Deno, and any runtime that supports fetch and ES modules. Use from Python, Go, or any language via subprocess.

Inspired by Mario Zechner's "What if you don't need MCP?" — the idea that plain fetch wrappers outperform protocol-heavy MCP servers for most AI agent use cases.

Install

npm install @axiestudio/tool   # or bun add / pnpm add / yarn add

Or just copy the .js files you need — they have zero npm dependencies.

Architecture

┌──────────────────────────────────────────────────────────────┐
│  52 Core Tools (zero dependencies — just fetch())            │
│                                                              │
│  context7 · cloudflare-docs · npm · github                   │
│  ar-android-docs · ar-ios-docs                               │
│  astro-docs · drizzle-docs · better-auth-docs · livekit-docs │
│  hono-docs · react-docs · nextjs-docs · zod-docs             │
│  bun-docs · stripe-docs · tanstack-docs · shadcn-docs        │
│  neon-docs · deno-docs · vitest-docs · svelte-docs           │
│  vue-docs · angular-docs · nuxt-docs · clerk-docs            │
│  convex-docs · turso-docs · supabase-docs · prisma-docs      │
│  turborepo-docs · elevenlabs-docs · trpc-docs · solid-docs   │
│  elysia-docs · fastify-docs · effect-docs · xstate-docs      │
│  vite-docs · vercel-docs · payload-docs · resend-docs        │
│  mantine-docs · langchain-docs · nitro-docs                  │
│  panda-css-docs · expo-docs · zustand-docs · storybook-docs  │
│  tauri-docs · rspack-docs · wxt-docs                         │
│                                                              │
│  Works with: node, bun, deno, npx tsx, python (subprocess)   │
├──────────────────────────────────────────────────────────────┤
│  Browser Tools (optional — requires puppeteer-core)           │
│                                                              │
│  browser/start.js · nav.js · eval.js · screenshot.js         │
│  get-text.js · wait.js · scroll.js · links.js · fill.js      │
│  cookies.js · pick.js                                        │
│                                                              │
│  Install: npm install puppeteer-core                          │
├──────────────────────────────────────────────────────────────┤
│  Interactive CLI (optional — requires ink + react)             │
│                                                              │
│  bin/cli.js — terminal UI for exploring all 52 tools          │
│                                                              │
│  Install: npm install ink react                               │
└──────────────────────────────────────────────────────────────┘

Core tools are the 52 .js files in the root. They use only the built-in fetch() API (available in Node 18+, Bun, Deno). No npm install required — copy the files and import.

Browser tools in browser/ connect to Chrome via CDP and require puppeteer-core (~2 MB, no bundled Chromium). Install only if you need browser automation.

Interactive CLI (bin/cli.js) provides a full-screen terminal UI. It requires ink and react. These are listed as optionalDependencies — skip them if you only use the tools programmatically.

Tools

Multi-purpose tools

| Tool | Import | Description | Auth | |------|--------|-------------|------| | context7 | @axiestudio/tool/context7 | Live docs for any library (npm, GitHub, PyPI) | CONTEXT7_API_KEY (optional) | | cloudflare-docs | @axiestudio/tool/cloudflare-docs | Cloudflare developer docs (Workers, KV, D1, R2, AI…) | None | | npm | @axiestudio/tool/npm | npm registry — search, README, metadata, versions, downloads, dependencies | None | | github | @axiestudio/tool/github | GitHub public API — files, dirs, code search, releases, tag comparison | None |

AR docs

| Tool | Import | Description | |------|--------|-------------| | ar-android-docs | @axiestudio/tool/ar-android-docs | Google ARCore + Scene Viewer documentation | | ar-ios-docs | @axiestudio/tool/ar-ios-docs | Apple ARKit documentation |

Framework & runtime docs

| Tool | Import | Description | |------|--------|-------------| | react-docs | @axiestudio/tool/react-docs | React | | nextjs-docs | @axiestudio/tool/nextjs-docs | Next.js | | astro-docs | @axiestudio/tool/astro-docs | Astro | | svelte-docs | @axiestudio/tool/svelte-docs | Svelte & SvelteKit | | vue-docs | @axiestudio/tool/vue-docs | Vue.js | | angular-docs | @axiestudio/tool/angular-docs | Angular | | nuxt-docs | @axiestudio/tool/nuxt-docs | Nuxt | | solid-docs | @axiestudio/tool/solid-docs | SolidJS | | hono-docs | @axiestudio/tool/hono-docs | Hono | | fastify-docs | @axiestudio/tool/fastify-docs | Fastify | | elysia-docs | @axiestudio/tool/elysia-docs | Elysia (Bun) | | trpc-docs | @axiestudio/tool/trpc-docs | tRPC | | nitro-docs | @axiestudio/tool/nitro-docs | Nitro server toolkit | | expo-docs | @axiestudio/tool/expo-docs | Expo (React Native) | | bun-docs | @axiestudio/tool/bun-docs | Bun runtime | | deno-docs | @axiestudio/tool/deno-docs | Deno runtime |

Build & dev tools

| Tool | Import | Description | |------|--------|-------------| | vite-docs | @axiestudio/tool/vite-docs | Vite | | vitest-docs | @axiestudio/tool/vitest-docs | Vitest | | turborepo-docs | @axiestudio/tool/turborepo-docs | Turborepo | | storybook-docs | @axiestudio/tool/storybook-docs | Storybook | | rspack-docs | @axiestudio/tool/rspack-docs | Rspack | | wxt-docs | @axiestudio/tool/wxt-docs | WXT (web extensions) | | tauri-docs | @axiestudio/tool/tauri-docs | Tauri (desktop apps) |

Database & backend

| Tool | Import | Description | |------|--------|-------------| | drizzle-docs | @axiestudio/tool/drizzle-docs | Drizzle ORM | | prisma-docs | @axiestudio/tool/prisma-docs | Prisma ORM | | neon-docs | @axiestudio/tool/neon-docs | Neon serverless Postgres | | supabase-docs | @axiestudio/tool/supabase-docs | Supabase | | turso-docs | @axiestudio/tool/turso-docs | Turso (edge SQLite) | | convex-docs | @axiestudio/tool/convex-docs | Convex | | payload-docs | @axiestudio/tool/payload-docs | Payload CMS |

Auth & payments

| Tool | Import | Description | |------|--------|-------------| | better-auth-docs | @axiestudio/tool/better-auth-docs | Better Auth | | clerk-docs | @axiestudio/tool/clerk-docs | Clerk | | stripe-docs | @axiestudio/tool/stripe-docs | Stripe |

UI & styling

| Tool | Import | Description | |------|--------|-------------| | shadcn-docs | @axiestudio/tool/shadcn-docs | shadcn/ui | | mantine-docs | @axiestudio/tool/mantine-docs | Mantine | | panda-css-docs | @axiestudio/tool/panda-css-docs | Panda CSS |

State management & data

| Tool | Import | Description | |------|--------|-------------| | tanstack-docs | @axiestudio/tool/tanstack-docs | TanStack (Query, Router, Table) | | zustand-docs | @axiestudio/tool/zustand-docs | Zustand | | zod-docs | @axiestudio/tool/zod-docs | Zod | | xstate-docs | @axiestudio/tool/xstate-docs | XState | | effect-docs | @axiestudio/tool/effect-docs | Effect |

AI & APIs

| Tool | Import | Description | |------|--------|-------------| | langchain-docs | @axiestudio/tool/langchain-docs | LangChain JS | | vercel-docs | @axiestudio/tool/vercel-docs | Vercel platform | | livekit-docs | @axiestudio/tool/livekit-docs | LiveKit | | elevenlabs-docs | @axiestudio/tool/elevenlabs-docs | ElevenLabs | | resend-docs | @axiestudio/tool/resend-docs | Resend (email API) |

Browser automation

| Tool | Import | Description | Dependencies | |------|--------|-------------|-------------| | browser/* | CLI scripts | CDP browser automation | puppeteer-core |

Runtime Compatibility

# Node.js (18+)
node --input-type=module -e "import { invoke } from './npm.js'; ..."

# Bun
bun -e "import { invoke } from './npm.js'; ..."

# Deno
deno run --allow-net npm.js

# Python (via subprocess)
import subprocess
result = subprocess.run(["node", "--input-type=module", "-e",
    "import { invoke } from './npm.js'; const r = await invoke('search', { query: 'hono' }); console.log(JSON.stringify(r));"
], capture_output=True, text=True)
print(result.stdout)

Usage

Docs tools (48 tools — all share the same interface)

All documentation tools expose three commands: get-index, get-page, and search-docs.

import { invoke } from "@axiestudio/tool/hono-docs"; // swap for any docs tool

// List all available doc pages
const { index }    = await invoke("get-index");

// Fetch a specific page as Markdown
const { markdown } = await invoke("get-page", { path: "/docs/getting-started" });

// Search across all docs
const { result }   = await invoke("search-docs", { query: "middleware" });

This same pattern works for all 48 docs tools:

import { invoke } from "@axiestudio/tool/react-docs";
import { invoke } from "@axiestudio/tool/vite-docs";
import { invoke } from "@axiestudio/tool/prisma-docs";
import { invoke } from "@axiestudio/tool/stripe-docs";
// ... any of the 48 docs tools

Note: cloudflare-docs has a slightly different interface — it uses list-products instead of get-index, and search-docs takes a product parameter. See below.

Context7 — live library docs (two-step)

import { invoke } from "@axiestudio/tool/context7";

// Step 1: resolve library ID (always required)
const id = await invoke("resolve-library-id", { libraryName: "hono" });

// Step 2: fetch docs for a topic
const docs = await invoke("get-library-docs", { libraryId: id, topic: "middleware" });

Set CONTEXT7_API_KEY for higher rate limits. Works without it on the free tier.

Cloudflare Docs

import { invoke } from "@axiestudio/tool/cloudflare-docs";

const { products } = await invoke("list-products");
const { markdown } = await invoke("get-page", { path: "/workers/runtime-apis/kv/" });
const { result }   = await invoke("search-docs", { product: "d1", query: "migrations" });

npm Registry

import { invoke } from "@axiestudio/tool/npm";

const results  = await invoke("search", { query: "hono middleware" });
const readme   = await invoke("get-readme", { packageName: "drizzle-orm" });
const info     = await invoke("get-package-info", { packageName: "better-auth" });
const versions = await invoke("get-versions", { packageName: "react" });
const stats    = await invoke("get-downloads", { packageName: "hono" });
const deps     = await invoke("get-dependencies", { packageName: "drizzle-orm" });

GitHub

import { invoke } from "@axiestudio/tool/github";

const { content }  = await invoke("get-file", { owner: "honojs", repo: "hono", path: "src/index.ts" });
const { entries }  = await invoke("list-dir",  { owner: "honojs", repo: "hono", path: "src" });
const { items }    = await invoke("search-code", { query: "DurableObject alarm in:file language:ts" });
const { releases } = await invoke("get-releases", { owner: "cloudflare", repo: "workers-sdk" });
const info         = await invoke("get-repo-info", { owner: "honojs", repo: "hono" });
const diff         = await invoke("compare-tags", { owner: "honojs", repo: "hono", base: "v4.0.0", head: "v4.1.0" });

Browser Automation (CDP)

Minimal Puppeteer Core scripts for scraping and frontend testing. Requires Chrome + puppeteer-core.

# Install the dependency (only needed for browser tools)
npm install puppeteer-core

# Start Chrome on port 9222
node browser/start.js        # or: bun browser/start.js

# Navigate, screenshot, extract text
node browser/nav.js https://example.com
node browser/screenshot.js
node browser/get-text.js '#main'

# Form interaction
node browser/fill.js '#email' [email protected]
node browser/pick.js "Click the submit button"

# Utilities
node browser/eval.js 'document.title'
node browser/wait.js '.loaded' 10
node browser/links.js --json
node browser/cookies.js --curl
node browser/scroll.js bottom --wait 2

All browser scripts use node as the shebang but work equally with bun. If puppeteer-core is not installed, you get a friendly error message with install instructions instead of a cryptic module-not-found crash.

See browser/README.md for the full reference.

Interactive CLI

npx @axiestudio/tool           # interactive explorer (all 52 tools)
npx @axiestudio/tool init      # generate config for your AI agent

The interactive explorer lets you browse all 52 tools, pick commands, fill in parameters, and see results — all from the terminal. The init wizard generates a skill file for your AI agent setup.

Design Philosophy

• Zero dependencies for core tools — each tool is a single .js file using only the fetch() API built into modern runtimes.
• Runtime-agnostic — works with Node.js 18+, Bun, Deno, or any ES module runtime with fetch. Use from Python/Go/Rust via subprocess.
• Same interface everywhere — invoke(toolName, args) works the same across all 52 tools.
• No MCP, no daemons — just plain HTTP fetch calls. No protocol overhead.
• Drop-in for agents — copy the .js files next to your project and import directly. No npm required.
• Optional layers — browser tools need puppeteer-core, interactive CLI needs ink/react. Skip what you don't need.

Environment Variables

| Variable | Used by | Purpose | |----------|---------|---------| | CONTEXT7_API_KEY | context7.js | Bearer token for higher rate limits |

All other tools work without any API keys.

Testing

# Unit tests (810 tests, offline — no network)
node --test test/*.test.mjs

# Live API smoke tests (hits every tool's real endpoint)
node test/_live_test_all.mjs

License

Apache 2.0 — see LICENSE.

Attribution

Browser automation approach inspired by Mario Zechner's blog post on replacing MCP servers with plain CDP scripts.