Design partners

We're picking a handful of design partners. Here's exactly where things stand.

We're pre-revenue and in validation — no paying customers yet, and no logos to borrow. But the product is built and verified end to end: the atomic cap holds under 1,000 concurrent goroutines, the ledger persists to Postgres, the dashboard runs. Right now we're gathering signal from real workloads. Below is the unvarnished state — shipped, partial, and roadmap.

Pre-revenue · validationVerified end-to-endOnboarded by hand

Request beta access

200 · pass

No credit card. Run the gateway in your own VPC. We only email about the beta.

By submitting, you consent to us processing your email to manage your early-access request and tell you when we launch (art. 6.1(a) GDPR). Details in the Privacy policy.

Basic data-protection information
Controller:
The owner of SixDecimal (an individual). Full identification in the Legal notice.
Purpose:
Managing your early-access request and telling you when we launch. If you tick the box, also sending you product news.
Legal basis:
Your consent when you submit this form (art. 6.1(a) GDPR). You can withdraw it at any time.
Retention:
Until launch or until you withdraw your consent.
Recipients:
Providers acting as processors (transactional email, hosting). We never hand your data to third parties for their own marketing.
Rights:
Access, rectification, erasure, objection, restriction and portability, via the privacy contact in the Privacy policy. You can also complain to the AEPD (www.aepd.es).
More information:
Privacy policy · Legal notice

A handful of agencies and studios, not a public beta. We read every signup.

What's built

The honest status — the same one in our STATUS.md.

Shipped means the core logic is complete, no placeholders. Partial means one piece is real and one is missing. We don't mark anything ready that doesn't compile, or that leans on a secret we haven't wired.

Shipped

200 · pass
  • Atomic cap — reserve, commit, refund

    Atomic in Redis and verified under 1,000 concurrent goroutines (the result is exactly N). Rebuilds against stale totals on boot; fail-closed or fail-open when Redis drops.

  • Provider proxy with usage capture

    OpenAI, Anthropic, and any OpenAI-compatible endpoint. Passthrough for non-stream and SSE, with prompt-cache normalized.

  • In-memory price book (~40 models)

    Loaded from model_prices with periodic refresh; cost computed in bigint micro-USD, never a float on the hot path.

  • Batched, idempotent ledger writer

    Writes usage_events, budget_windows and ledger_journal in one transaction, deduped on (provider, request_id).

  • Control-plane CRUD

    Budgets, keys and dimensions over Fastify + Prisma + Zod, isolated per tenant by Postgres RLS.

  • First-party email + password auth

    argon2id hashes, opaque server-side sessions (revocable, sliding expiry) and per-account lockout. No external identity provider.

  • Stripe billing + read-only Connect margin

    Own checkout, portal and webhook; Connect joins attributed cost to real revenue. Degrades to no-op without keys.

  • BullMQ workers

    Rollups, alerts, margin, reconciliation and price-book refresh, off the request path.

  • The dashboard

    Budgets, customers, keys, logs, margin and settings — with a mock-data demo mode when the API is down.

In progress

In progress
  • Gemini + Bedrock routing

    Declared in the enum and config, but no route is mounted yet. Live today: OpenAI, Anthropic and OpenAI-compatible.

  • Hardened self-host / Helm

    The Free tier self-hosts the gateway in your own VPC today. A hardened, enterprise Helm path is on the roadmap, not shipped.

  • Hosted production deploy

    Verified end to end locally; a hosted production environment is roadmap (BACKLOG P2). No SOC2 yet either.

What you get

A short list, and a real one.

Early enough that your workload changes the product, not just your settings.

Hands-on onboarding

We wire the gateway into your stack on a call — first budgets, attribution and keys set up with you, not pointed at a docs page.

A direct line to the people building it

You talk to the engineers writing the Go and the control plane, not a support tier. Bugs get triaged the day you find them.

Influence over the roadmap

What your workload needs next moves up the backlog. Partners shape what ships before it ships — including which providers we route.

Early, locked pricing

Today's plans are early-access and indicative. Lock a partner rate now and keep it as the product matures — priced on metered events, never a slice of your model spend.

Your real workload shaping the product

We build against your actual clients and actual traffic, not a synthetic demo. The edges you hit are the ones we fix first.

What we ask

Three things, in return.

A real workload to point at it

Route real client traffic through the gateway, not a toy script. The cap only proves itself under load you actually care about.

Candid feedback

Tell us what's confusing, what's missing, and any time the number looked wrong. Blunt is more useful than polite.

Patience with an early product

Some paths are dev-bypass or roadmap — Gemini/Bedrock routing, hardened self-host, hosted prod. You'll hit rough edges. We move fast on them.

200 · pass

Whatever you point at the gate is counted to the micro-dollar — never rounded on the hot path.

$7,412.083950

example figure

Become a design partner

You've seen the whole state. Come point a real workload at it.

A handful of agencies and studios, onboarded by hand. If the honest version above is the kind of product you want to shape, leave your email — I'll be in touch.

Dani Romero · Founder — I read and reply to every signup myself.

No credit card. Run the gateway in your own VPC. We only email about the beta.

By submitting, you consent to us processing your email to manage your early-access request and tell you when we launch (art. 6.1(a) GDPR). Details in the Privacy policy.

Basic data-protection information
Controller:
The owner of SixDecimal (an individual). Full identification in the Legal notice.
Purpose:
Managing your early-access request and telling you when we launch. If you tick the box, also sending you product news.
Legal basis:
Your consent when you submit this form (art. 6.1(a) GDPR). You can withdraw it at any time.
Retention:
Until launch or until you withdraw your consent.
Recipients:
Providers acting as processors (transactional email, hosting). We never hand your data to third parties for their own marketing.
Rights:
Access, rectification, erasure, objection, restriction and portability, via the privacy contact in the Privacy policy. You can also complain to the AEPD (www.aepd.es).
More information:
Privacy policy · Legal notice
Become a design partner · SixDecimal