Need ExistBefore at production scale? Talk to the team.
ExistBefore is the public showcase of the CertiSigma API. When your use case outgrows the free tier — high volume, contractual SLAs, dedicated signing keys, webhooks, a single point of contact for legal and compliance — you talk to the people who run the pipeline directly.
No form to fill, no calendar to book. Either browse the developer portal at your own pace, or send a single email — a human reads it.
What enterprises typically ask for.
- Volume contracts. Predictable pricing for batches of hundreds, thousands, or millions of attestations per month — instead of per-request pay-as-you-go.
- SLA-backed T1 and T2. Contractual time-to-T1 (eIDAS qualified timestamp) and time-to-T2 (Bitcoin anchor), with credits if the SLA is missed.
- Dedicated signing keys. One ECDSA key (or several, per environment) issued to your organization, with rotation procedures and revocation contacts documented.
- Webhooks and pull APIs. Be notified when T1 or T2 lands for an attestation, instead of polling the status endpoint.
- Audit and compliance. Single point of contact for SOC, ISO 27001, and eIDAS documentation. Counter-signed NDA available.
- Bulk attestation. If you already have pre-computed SHA-256 hashes (e.g. a daily cohort of receipts, logs, contracts), the SDK and the Census CLI handle this directly. See the bulk attestation guide.
What you will not find on this page.
- Public price list. Enterprise pricing depends on volume, SLA tier, and integration scope — there is no shelf price. The first email gets you a written quote.
- Calculator or tier picker. The free site at existbefore.com is the calculator: every use case starts there for free, and the moment you need a dedicated key, you talk to us.
- Self-checkout. Enterprise contracts always involve a counter-signed agreement. Self-serve developer keys are available on the API page if you do not need an enterprise contract yet.
Next steps.
Two doors, both lead to the same team:
FAQ
I just need a developer API key, is this the right page? No — for self-serve developer keys, go to /api/. This page is for organizations that need a contract.
Does the email response time have an SLA? Pre-contract email is best-effort, typically within one business day in CET hours. Post-contract response times are part of your SLA.
Can I trial enterprise features before committing? Yes. Trial periods with dedicated keys and webhooks are routinely set up before signature. Mention "trial" in the first email.
Is the underlying technology different from the free tier? No. The same T0 ECDSA, the same eIDAS-accredited TSA for T1, the same OpenTimestamps Bitcoin anchoring for T2. What differs is the contract, the rate limits, the SLA, and the support channel.