Developers

Verification infrastructure, as an API.

Run the whole engine in 60 seconds — no signup, no card. Send a claim, get back a cryptographically sealed, policy-versioned, publicly-resolvable certificate. Seven REST capabilities behind one Bearer token. Free forever at low volume. A full-power 30-day trial when you are ready.

# One call. A real, sealed certificate back. curl https://api.certisyn.com/v1/verify \ -H "Authorization: Bearer $CERTISYN_KEY" \ -d '{ "subject": "Acme Holdings", "claim": "FY24 revenue $847M", "evidence": [...] }' # → { "vao": "IRC-202606-47281", "verdict": "VERIFIED", "confidence": 0.99, # "policy_hash": "v2.0:8f3c…", "anchor": "eth:0x…", "resolve": "certisyn.com/c/IRC-202606-47281" }
Generous by design

We give before we take.

Everything you need to evaluate Certisyn end-to-end is free and instant. No sales call to start, no card to try, no surprise charge at the end of a trial.

Try it with zero signup

Run any of the live market demos right now and get back a real, registry-backed certificate, publicly resolvable at /c/<code>. Nothing fabricated.

Free key in 60 seconds

Verified business email, instant Bearer token, OpenAPI 3.1, Postman collection, quickstart. No sales touch.

Real partner sandboxes

The sandbox runs against live partner sandboxes and sanctions feeds — every rail badged LIVE or MOCK so you see exactly what is real.

No surprise charges

The 30-day full-power trial auto-reverts to the free tier. We never charge a card you did not knowingly add.

The surface

Seven capabilities. One Bearer token.

Every Certisyn surface is one authenticated call away. Each returns a sealed, policy-versioned output you can rely on without re-performing the work.

POST /v1/verify
Verify

Run a Verification Reconciliation Object over any entity claim. Get a deterministic verdict and confidence.

POST /v1/certify
Certify

Mint a sealed Verification Attestation Object — from public free-tier to registry-grade attestation.

POST /v1/forensics
Forensic scan

Document and synthetic-media authenticity, claim-contextual, deepfake-aware, multi-language.

POST /v1/posture
Posture and threat scan

Bastion security-posture and threat grade across 118 deterministic checks in 24 categories, framework-aligned.

GET /v1/graph
Intelligence graph

Query the entity graph — relationships, exposure propagation, beneficial ownership.

GET /c/{code}
Anchor + resolve

Publicly resolve any certificate against the anchored attestation registry. No auth.

POST /v1/webhooks
Webhooks

Subscribe to verification, attestation, and posture events. Signed payloads, published retries.

GET /v1/status
Live status

The same real-time ping, region, commit, and latency endpoint our own monitoring uses.

Proof, not promises

Point it at what others missed.

Every worked example runs against live infrastructure and reconstructs what the engine would have surfaced — months before the public failure. Run them yourself.

Wirecard
The €1.9B that was not there

Cash-confirmation reconciliation against independent custodial evidence.

Greensill
Supply-chain finance unwound

Receivable-existence verification against operational-existence proxies.

Shadow fleet
5 months of advance warning

AIS-gap plus sanctioned-port geofence plus STS-transfer archetype.

AUSTRAC
3 months early

AML transaction-monitoring and IFTI under-reporting archetype.

Why it compounds

The longer you run it, the more it is worth to you.

Certisyn is not a tool you call and forget. Every verification deepens an asset that is yours — and that your counterparties come to rely on.

Your private attestation registry

Every claim you verify is sealed into your own institutional-memory layer. Each new engagement inherits the full prior context — derivation chains, contradictions, counterparties — under the original governing policy.

Certificates others rely on

Your issued VAOs are publicly resolvable and anchored. Once a counterparty, lender, or regulator has relied on one, your certificate is part of their record too. The network effect runs in your favour.

Replay-deterministic, forever

Any past attestation can be re-verified under the exact policy version in force at issuance. Your audit trail never decays and never needs re-performing — a permanent, defensible record.

Wire your rails once

Connect your evidence sources — banking, identity, sanctions, on-chain, custody — once, through one token. They power every capability and every future verification automatically.

Data sovereignty

Or run the engine inside your own infrastructure.

For regulated and sovereign contexts, deploy the verification engine as a signed container in your own cloud. Your evidence, derived signals, and audit log live in your Postgres, behind your keys. The only thing that crosses the boundary is a signed Ed25519 receipt of each verification event, anchored for independent verifiability. The architecture is the sovereignty — not the deployment region.

Start free

Free to begin. Generous to stay.

Free · forever
$0
No card. Never expires.
  • Every capability on the sandbox — unlimited
  • A free monthly production allowance on live calls
  • Real, publicly-resolvable Standard certificates
  • OpenAPI 3.1, Postman, webhooks
Pro trial · 30 days
$0
No card. Auto-reverts to Free.
  • Full production volume and fidelity
  • All 10 sovereign markets, every cert tier
  • Forensic, posture, and intelligence-graph at scale
  • Priority support · OpenAPI codegen
Production
Pay as you scale
From $0.75 / verification.
  • Tiered per-call pricing, volume discounts
  • Certificates from $500 to $25,000
  • SLA, dedicated and air-gapped deployment
  • Edge SDK · customer-resident engine

Per-call tiers: $2 (1–100/day) · $1.50 (101–500) · $1 (501–2,000) · $0.75 (2,000+). Platform fee $200/month, waived on the Founder tier and during the trial. Extended evaluation available for named accounts under a design-partner agreement.

Building a product on Certisyn, reselling verification, or running diligence for your own clients? You are not a customer — you are a partner. Get the full platform at $0 until you earn with us, revenue share, and your own console.