The need for trustless B2B onboarding

The onboarding nightmare: documents and BEC

Corporate onboarding today means sharing identity documents, incorporation papers, beneficial ownership details, and often financial statements or internal data with counterparties and vendors. That happens over email, portals, and ad hoc channels. Every handoff is a risk: business email compromise (BEC) is at an all-time high, and AI has made phishing and impersonation more convincing. Companies do not want to send their financial internals to third parties, but they have to prove they are compliant and creditworthy. The result is delay, friction, and a large attack surface. One leaked document can become a breach or a regulatory finding.

The AffixIO play: flip the trust model

We flip the trust model. Instead of sharing documents, you prove that you meet the criteria. Zero-knowledge proofs and our stateless eligibility layer let merchants (and any B2B party) prove compliance without revealing proprietary information. The verifier does not receive your financials or internal structure; they receive a cryptographically assured answer: does this entity meet the required thresholds? The answer is YES or NO. No document exchange, no insecure channel, no data to steal.

The pitch: prove thresholds, zero breach risk, faster integration

One business can prove to another that they meet all regulatory and financial thresholds using our mathematical ZKP circuits. That completely eliminates data breach risk during the onboarding process: there are no documents or PII in transit or at rest in your pipeline. Partners get the assurance they need (KYC/AML, credit, sanctions, or custom rules) without ever handling your sensitive data. Integration is faster because there is no manual document review, no secure-file handoff, and no backlog of paperwork. You call the API; you get a yes or no; you move on.

Verify with the API

Behaviour is documented and verifiable. The Binary Eligibility Verification API at api.affix-io.com exposes POST /v1/verify (send identifier and circuit_id; receive eligible and data_retained as null) and GET /v1/circuits to list available circuits. See openapi.json. No documents or proprietary data are submitted or stored; only the binary outcome.

Circuits for this trend

Use these circuit IDs with the AffixIO API. List all circuits: GET https://api.affix-io.com/v1/circuits (see openapi.json). Run a check: POST /v1/verify with identifier and circuit_id.

• kyc (KYC Verification)
• consent-verification (Consent Verification)
• audit-proof (Audit Proof)
• composite (Composite Circuit)
• token-validation (Token Validation)

How AffixIO fits in

AffixIO provides the verification layer for trustless B2B onboarding: you send an identifier and circuit_id to api.affix-io.com; the circuit runs against the relevant data source and returns a binary eligible result with no PII or documents stored. That supports KYC/AML, credit thresholds, sanctions checks, and custom compliance rules without document exchange. If you are redesigning corporate onboarding to eliminate breach risk and speed partner integration, contact hello@affix-io.com or use our contact page for API access.

Frequently asked questions

What is trustless B2B onboarding?

Trustless B2B onboarding means one business can prove to another that it meets regulatory and financial thresholds without sharing sensitive documents. Instead of sending financial statements, incorporation papers, or internal data over email or portals, the proving party uses zero-knowledge proofs (ZKPs) or a stateless eligibility layer so the verifying party gets only a yes or no. There is no document exchange, so there is no document to steal or leak. AffixIO provides that layer: you prove compliance without revealing proprietary information.

How do ZK-proofs help with KYC and AML compliance?

Traditional KYC/AML requires sharing identity documents, ownership structures, and sometimes financial internals. With AI-driven business email compromise (BEC) at an all-time high, sending those documents to third-party vendors is risky. ZK-proofs and stateless eligibility circuits let a business prove that it meets criteria (e.g. sanctioned-party checks, beneficial ownership thresholds, credit or regulatory status) without revealing the underlying data. The verifier gets a cryptographically assured yes or no. AffixIO runs such circuits: the API returns eligible and data_retained is always null, so no proprietary information is stored or transmitted.

How does AffixIO eliminate data breach risk during onboarding?

When you do not send or store sensitive documents, they cannot be breached. AffixIO consults external data sources in real time and returns only a binary result. No financial statements, no incorporation papers, no internal spreadsheets pass through the system. So even if a vendor or partner is compromised, there is no trove of your proprietary data to steal. The onboarding process becomes a series of eligibility checks; integration is faster because there is no manual document review or secure-file handoff.

What are ZKP circuits in this context?

ZKP circuits are the rules and logic that turn a question (e.g. does this entity meet our KYC/AML or financial thresholds?) into a verifiable yes or no without exposing the underlying data. AffixIO exposes circuits via the API: you send an identifier and a circuit_id (from GET /v1/circuits); the circuit runs against the relevant data source and returns a binary result. The mathematical and cryptographic design ensures the answer is trustworthy without the verifier ever seeing the raw inputs. That is how one business proves compliance to another in a trustless way.