One key in front of every provider your apps depend on.

A request leaves your app once and is accounted for by the time it returns.

1. One endpoint, one key

   Your app calls the gateway the same way it would call OpenAI, S3 or FCM. Provider credentials never leave the server.

2. The gateway resolves it

   A model alias, a storage path or an app id becomes a concrete provider, bucket or credential.

3. A provider answers, or the next one does

   Rate limits, outages and geo-blocks move the request down the fallback order instead of failing it.

4. The outcome is recorded

   Latency, cost, tokens, bytes and delivery land in the log before the response closes.

Three calls, and one key for all of them.

Nothing to learn that you do not already know: the AI gateway speaks the OpenAI API, an upload asks for a signed URL, and a notification names an app and who should get it.

import OpenAI from "openai";

const ai = new OpenAI({
  baseURL: `${process.env.PENSTOKE_URL}/v1`,
  apiKey: process.env.PENSTOKE_KEY,
});

// "fast" is an alias you define: a primary
// model, then the fallbacks, in order.
const reply = await ai.chat.completions.create({
  model: "fast",
  messages: [{ role: "user", content: question }],
  stream: true,
});

curl -X POST "$PENSTOKE_URL/storage/v1/presign" \
  -H "Authorization: Bearer $PENSTOKE_KEY" \
  -d '{
    "path": "images/cover.jpg",
    "method": "PUT",
    "contentType": "image/jpeg",
    "sizeBytes": 184320
  }'

# → { "url": "…", "expiresAt": "…" }
# The provider host and signature stay here.

curl -X POST "$PENSTOKE_URL/push/v1/send" \
  -H "Authorization: Bearer $PENSTOKE_KEY" \
  -d '{
    "appId": "app_7f3c…",
    "title": "Order shipped",
    "body": "On its way.",
    "target": {
      "platforms": ["IOS", "ANDROID"],
      "tags": ["vip"]
    }
  }'

Works with the providers you already pay.

You bring the accounts and the keys. Penstoke holds them server-side, routes to them in the order you set, and falls through to the next one when a provider throttles or goes dark.

A plan caps what you keep, not what you send.

Model calls, uploads and notifications run on provider accounts you own — OpenAI, R2, APNs, FCM — and those providers bill you directly, at their rates. The gateway never meters or marks up the traffic that passes through it. What a plan sets is how much you keep configured here: providers, buckets, apps, campaigns, schedules and seats.

What is Penstoke?

Penstoke is one API in front of three gateways: AI models, object storage and push notifications. Your app calls it the way it would call OpenAI, S3 or FCM; Penstoke resolves the call to a provider you have configured, fails over to the next one when that provider throttles or goes dark, and records what it cost.

Which providers does it support?

For AI: OpenAI, Anthropic, Google Gemini, Groq, OpenRouter, Ollama and any OpenAI-compatible API — which puts GPT, Claude, Gemini, Llama, Mistral, DeepSeek, Qwen, Kimi and Grok behind one alias. For storage: Cloudflare R2, AWS S3, Google Cloud Storage, Supabase Storage, MinIO, Backblaze B2 and Cloudinary. For push: Apple APNs and Firebase FCM, on iOS, Android and Web.

Does Penstoke charge for what I send through it?

No. You bring your own provider accounts and keys, and those providers bill you directly at their own rates. The subscription caps what you keep configured — providers, endpoints, buckets, apps, campaigns, schedules and seats — not the volume of traffic. Nothing passing through the gateway is metered or marked up.

Do I need my own domain?

No. Every account gets its own address on ours — acme.penstoke.com — serving public objects from the moment you sign up, with the certificate issued automatically and no DNS to configure. Point your own domain at the gateway whenever you want to; the object paths stay exactly the same, so nothing you have published breaks.

Where do my provider keys live?

Encrypted at rest on the gateway, and never returned to the browser or shipped to your apps. Your apps hold a scoped gateway key instead, which you can rotate or revoke on its own.

Do I have to use all three gateways?

No. Set up the ones you need and leave the rest; a plan covers all three either way, and the limits you do not spend simply go unused.

Can I change or cancel a plan?

Yes, from the dashboard. Plans are monthly through Stripe, and a downgrade or cancellation takes effect at the end of the period you have already paid for.