Zyverna
Now with agent mode and an OpenAI-compatible API

The AI workspace that ships code with you.

Zyverna pairs frontier models with a real autonomous agent that reads your files, edits them, runs code and iterates until the job is done. Pay for what you use with credits — in USD, CAD, EUR or GBP.

Open the workspace See pricing
3
model tiers
4
currencies
100%
OpenAI-compatible
zyverna · agent
Working
Add rate limiting to the /api/upload endpoint and write a test.

Why Zyverna

Everything an engineer wants from an AI — and nothing they don't.

Designed around how real work happens: reading context, making changes, verifying them, repeating.

A real agent, not a chatbot

Zyverna plans, calls tools, edits files, runs code and checks its own work in a loop — the same way an engineer would.

Workspace-aware

Bring a folder, paste files or start from a template. The agent searches and reads your project before touching anything.

OpenAI-compatible API

Point any existing SDK at api.zyverna.com/v1. Same request shape, same streaming — billed in credits.

Three model tiers

Flash for speed, Core for everyday engineering, Ultra for deep reasoning. Switch per message.

Pay once, no subscription

Every request shows its cost. Buy a credit pack or any amount in USD, CAD, EUR or GBP — credits never expire, nothing renews.

Built for global teams

Multi-currency billing, VAT/GST-ready invoices and localized receipts from day one.

Privacy mode

Your code is never used to train models. Zero-data-retention mode with providers is available for teams on request.

Usage you can audit

Per-run token counts, per-key limits and exportable usage logs — no surprises on the invoice.

How it works

From request to verified change in one loop.

Zyverna's agent runs a plan → act → verify cycle with a transparent tool log. You see what it read, what it changed and why — in real time.

  1. 01

    Describe the outcome

    Ask in plain language. Attach files, link a repo or paste an error.

  2. 02

    The agent plans and acts

    It searches, reads, edits and runs — showing every tool call as it happens.

  3. 03

    It verifies its own work

    Tests, type-checks and sanity runs are part of the loop, not an afterthought.

  4. 04

    You review the diff

    Accept, tweak or ask for another pass. You stay in control of what ships.

example.ts
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.ZYVERNA_API_KEY,
  baseURL: "https://zyverna.com/api/v1",
});

const stream = await client.chat.completions.create({
  model: "zyverna-core",
  stream: true,
  messages: [
    { role: "user", content: "Refactor this function to be async-safe." },
  ],
});

for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0]?.delta?.content ?? "");
}

Developer API

Drop-in compatible with the OpenAI SDK.

Change one line — the baseURL — and your existing code talks to Zyverna. Streaming, tool calling and JSON mode all work as expected. Every API key has its own spend limit and usage log.

  • • POST /v1/chat/completions with streaming & tools
  • • GET /v1/models with live credit pricing
  • • Per-key budgets, rotation and revocation
  • • Credits deducted per token with a cost header on every response
Read the API docs

Pricing

Pay once. No subscriptions.

Credit packs from $50, or any amount you like — in your currency. Credits never expire and there is nothing to cancel.

One-time payment · no subscription · credits never expire

Starter

A solid month of daily use.

$50once

Pay once, use any time · charged in USD

5,500
credits
+10% vs. pay-as-you-go

≈ $9.09 per 1,000 credits

Buy Starter
Most popular

Pro

For people who ship every day.

$130once

Pay once, use any time · charged in USD

15,000
credits
+15% vs. pay-as-you-go

≈ $8.67 per 1,000 credits

Buy Pro

Business

For a small team or a big project.

$210once

Pay once, use any time · charged in USD

26,000
credits
+24% vs. pay-as-you-go

≈ $8.08 per 1,000 credits

Buy Business

Scale

Best value for heavy agent use.

$500once

Pay once, use any time · charged in USD

65,000
credits
+30% vs. pay-as-you-go

≈ $7.69 per 1,000 credits

Buy Scale

Everything is included with every purchase

  • All models: Flash, Core and Ultra
  • Unlimited agent runs and workspaces
  • OpenAI-compatible API with per-key spend limits
  • Credits never expire
  • Pay in USD, CAD, EUR or GBP
  • No subscription, no auto-renewal, no seat fees
  • Export or delete your data any time
  • Email support — larger purchases get priority
Any amount

Don't need a pack? Top up whatever you like.

Enter any amount from $5 to $5,000 in USD, CAD, EUR or GBP. Larger amounts earn +5%, +10% or +15% bonus credits. Same one-time payment, same features.

$USD
You get— credits
Buy credits

Every new account gets 200 welcome credits — no card required. Prices exclude applicable VAT/GST/sales tax, calculated at checkout based on your billing address.

See model pricing in credits

Frequently asked questions

A credit is Zyverna's unit of usage. 100 credits = 1 USD. Each model lists its price per 1,000 input and output tokens in credits, and every response shows exactly how many credits it consumed.

Start building with Zyverna today.

200 welcome credits when you sign up — no credit card required. When you need more, pay once for a pack or any amount. No subscription.

Open the workspace Buy credits