Built on the Context Sandwich Method

Stop Re-Prompting.
Start Thinking in Chains.

Build multi-step AI workflows once. Run them instantly, every time — with any model, any key.

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Loved by CS practitioners
How it works

Four nodes. Infinite leverage.

Every chain follows the Context Sandwich structure — HMW → ROLE → TASK → FORMAT. Build once, run at scale.

HMW
Define the problem you're solving
ROLE
Set the AI's perspective & expertise
TASK
Give the specific instruction
FORMAT
Shape the output exactly as needed
What practitioners say

“I used to spend 20 minutes rebuilding the same prompt structure every morning. Now I open my chain, hit Run, and I’m in the work before my coffee’s cold.”

M
Maya R.
Brand Strategist

“I teach the Context Sandwich Method to my research team. PromptChain is the missing piece — they can finally share and run each other’s chains without starting from scratch.”

D
Dr. James L.
Research Director

“As a screenwriter, my best prompts are my competitive advantage. PromptChain lets me build once and iterate fast — and my keys never leave my browser.”

S
Sofia T.
Screenwriter
Features

Everything you need to run at scale.

PromptChain gives Context Sandwich practitioners the tools to stop repeating themselves and start shipping results.

⛓️
Visual Chain Editor
Build multi-step prompt workflows with a clean drag-connect canvas. No code. No friction.
⚡
Streaming Output
Watch results appear in real time. Every node streams as it executes — no waiting for the full response.
🤖
Any Model, Your Key
Claude, GPT-4o, Gemini — use your own API key, pay only for what you use. Zero markup.
📚
Template Library
25+ pre-built chains for content, strategy, research, and more. Fork any template and make it yours.
🔗
Shareable Chains
Share any chain with a unique URL. Collaborators run your chain without needing an account.
🛡️
Keys Never Stored
Your API keys live only in your browser session. They're never logged, stored, or transmitted to us.
Pricing

Start free. Scale when ready.

Bring your own API key and pay only the model provider directly. We charge for the platform, not per token.

Free
$0 / mo
Perfect for getting started and exploring the method.
  • 3 saved chains
  • 50 runs / month
  • All 4 node types
  • BYOK (any model)
  • Template library access
Get started free
Most popular
Pro
$19 / mo
For practitioners running chains daily and building serious workflows.
  • Unlimited chains
  • 1,000 runs / month
  • Priority model routing
  • Chain analytics
  • Shareable chain links
Start Pro — $19/mo
Studio
$49 / mo
For teams and educators delivering at scale.
  • Everything in Pro
  • Unlimited runs
  • Team workspace
  • White-label output
  • Priority support
Get Studio — $49/mo

You know the method.
Now run it at scale.

If you've learned the Context Sandwich Method, PromptChain is where your chains live, run, and compound.

Open the editor →