InstantCLI - Turn any API into a CLI for AI Agents | Product Hunt

Turn any API into a CLI for AI agents

Paste any API docs URL and get a production-ready CLI in minutes. Includes cross-platform binaries, install scripts, auto-updates, and docs-aware help text. No code to write, maintain, or host.

Enter any docs URL or OpenAPI spec:

Terminal
Discovering endpoints... done
Found 14 endpoints across 4 resources
GET /products → acme products list
POST /products → acme products create
GET /products/:id → acme products get
GET /orders → acme orders list
... 10 more commands generated
Install script ready
$ acme products list --json
[{ "id": 101, "name": "Widget Pro", "price": 29.99 }, ...]

Docs in, CLI out

Watch us turn Resend's API into a production-ready CLI.

How it works

Three steps from API docs to production CLI.

Step 1

Paste any docs URL

Drop in a link to any API docs. We crawl every page to discover routes, methods, parameters, and context.
Step 2

Generate your CLI

AI maps every endpoint to an intuitive command structure with smart naming, flags, help text, and validation.
Step 3

One-line install

Install the CLI with one command. Cross-platform binaries, hosted install scripts, and a full GitHub repo included.

Ship in minutes

Built for AI agents

Docs-aware help text

We extract context from your human-written docs — not just OpenAPI specs. Every CLI command gets rich help text that agents actually understand.

Runs everywhere

A single binary with zero dependencies. Agents install it with one curl command — no runtimes, no containers, no setup. Works in any sandbox, CI runner, or environment.

Zero context bloat

No schemas loaded upfront. Agents self-discover commands and pull only what they need. Chain multiple actions in a single step — fewer turns, fewer tokens, faster results.

Features

Everything you need to go from API to CLI.

Full source code

Every CLI comes with a complete GitHub repo. No black box — you own the code and can extend it.

Auto-updates

We re-crawl your docs, diff the changes, and update only the endpoints that changed. Trigger via webhook or the dashboard.

Binaries + install scripts

Lightweight cross-platform binaries for macOS, Linux, and Windows with hosted install scripts — curl | bash or PowerShell.

Hosted endpoints

We host the binaries and install scripts so you don't have to manage infrastructure for distribution.

Auto-discovery

Feed it any API docs or OpenAPI spec — InstantCLI maps every route, method, and parameter automatically.

Docs-aware help text

Context for each command is extracted from your API docs and bundled with the CLI. Agents fetch only what they need at runtime — no bloated context windows.

Native binaries. Zero dependencies.

Every CLI compiles to a single Go binary — fast, lightweight, and cross-platform. No runtimes, no npm, no Docker, no setup. Just curl | bash and go.

~7 min
avg time from docs URL to production CLI
4x
faster than building a CLI from scratch
0
lines of CLI code you need to write or maintain

Simple pricing

One-time payment or monthly with auto-updates.

$9/ CLI / one-time
Your complete CLI toolkit
  • Custom CLI from any API docs, built for AI agents
  • Cross-platform binaries (macOS, Linux, Windows)
  • Full GitHub repo of your CLI provided
  • One-line install scripts (curl | bash & PowerShell)
  • We host everything — nothing for you to deploy
Generate my CLI

Takes ~7 min on avg. Full source code included.

Ready to generate your CLI?

Paste any API docs URL or OpenAPI spec and we'll handle the rest!