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Start free with kotobase

Technical details, legal documents and some account steps still dey for English.

A tenant-scoped Knowledge Graph BaaS. Create your graph tenant on Free hosted secure storage at no cost, then self-serve Starter or Professional when you need a live 99.9% SLA — or talk to us for Business Critical and Enterprise.

How signup works.

kotobase uses passwordless identity: a WebAuthn passkey for people, or a self-custodied Web3/DID key presented as a single-use CACAO through auth.kotoba.cloud. The wallet's recovery phrase signs you in without the wallet. Click Start free to sign in or create your identity, then choose Free hosted secure storage or a paid plan scoped to your tenant DID.

1. Create your identity

Use a passkey, your own Ethereum wallet, or its recovery phrase at auth.kotoba.cloud. No password, no email, no company SSO.

2. Choose a plan

Free is $0 and needs no card. Starter is $25/month (charged as ¥3,750) and Professional is $132/month (charged as ¥19,800); both open a tenant-scoped Stripe checkout. Business Critical ($292) is quoted by sales. Enterprise is a dedicated-deployment contract.

Business Critical — contact sales Enterprise — contact sales

3. Continue Free start

After you sign in on Free hosted secure storage, follow the continuous Free loop: biscuit, write, query, then pin. No founder step.

Free — You carry operational risk. Di operator dey host di graph as encrypted multi-tenant storage and e no go ask you to run peer. Availability still dey best-effort: di service dey provided "as is" and "as available" wit no availability commitment, no service credits, no incident-response obligation, no recovery objective, and no support obligation. Na why dis level free.

Starter — Kotoba Labs Inc is responsible. Kotoba Labs Inc dey host and operate di graph for dis plan. Di public price na $25/month — di band wey individual engineer don dey pay for Supabase Pro. Checkout na self-serve; di charge na ¥3,750 per month. Di Aura Professional 1 GB company band ($65) na separate sales quote.

Professional — Kotoba Labs Inc is responsible. Kotoba Labs Inc dey carry operational responsibility for dis plan: e dey operate, monitor, patch, and recover di service; e commit to 99.9% monthly availability SLA wey get service credits; e dey acknowledge customer-reported incidents within one business day; and e dey hold itself to di published data-handling and security boundary. Availability dey measured by di daily SLO gate, wey receipts dey committed to di repository.

Business Critical — Kotoba Labs Inc is responsible under contract. Kotoba Labs Inc dey quote dis rung against Aura Business Critical 2 GB floor. 99.95% availability and 24x7 support dey only for contracted deployment wey clear multi-region write and on-call gates. Dem no dey offer am for shared production endpoint.

Enterprise — Kotoba Labs Inc is responsible under contract. Kotoba Labs Inc dey carry operational responsibility based on signed enterprise contract, wey fit pass the published ones: 99.999% monthly availability SLA with service-credit schedule, 24x7 named support with 15-minute P1 acknowledgement, dedicated tenant and infrastructure, counsel-approved privacy terms where e dey, data-residency commitments, customer-held key custody, read audit, and agreed retention and deletion policy. These commitments dey attach to dedicated deployment wey contract provisions cover; dem no dey offer am for shared production endpoint.

Prefer the API? See the full docs or How to use kotobase as pin service.

Review your subscription

Confirm the recurring charge and service terms before continuing to Stripe.

Plan
Price (tax included)
  • Monthly automatic renewal with no fixed contract term; the first charge is due when you subscribe and later charges recur monthly.
  • The tenant entitlement normally becomes available immediately after payment completes.
  • Cancel at any time by emailing support@kotobase.net. Cancellation takes effect at the end of the current paid period, with no cancellation fee.
  • Started periods are generally non-refundable, except where required by law, for duplicate or erroneous charges, or when the purchased service was not provided.
  • Who dey run am: Kotoba Labs Inc · Who dey sell: Ryo Awai · support@kotobase.net

Read the Terms, Privacy Policy, and commercial disclosure.