Products Lemma APIProof issuance & verification platformTrust402Delegate to agents, and transactSealSign-in for the agent era — no keys handed over
Use cases Manufacturing & Critical InfraInspection Record AssuranceFinance & FinTechCounterparty Record VerificationPublic SectorCertificate-less ProceduresHealthcareQualified Worker AssuranceProcurement & Supply ChainSupplier Credential MonitoringMedia & ContentContent AuthenticityService & RetailCross-group IdentityAI Adoption (cross-industry)AI Run GovernanceDevelopers & Agent OpsAgent Authority Control ▸ Browse the use-case index
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From checks that keep people waiting,
to trust settled on the spot.

Issue once. Verify free, as many times as you like.

Explaining the same thing at every submission, querying the issuer, work stopping until the paperwork is complete — when the receiving side can check for itself on the spot, there is no one left to wait for, and checking costs nothing. What the work stalls on differs by industry, so the solutions are split by industry too.

Talk to us Verify a proof yourself
Solutions — by industrySolutions by industry
Manufacturing & critical infrastructure Inspection Record Assurance Shipments that don't stall on the paperwork round-trip. LemmaCertified Data See this solution → Finance & FinTech Counterparty Record Verification Cut out the round-trip. Cut the review time. LemmaTrust402 See this solution → Government & public sector Certificate-less Procedures Document checks stay rigorous. The procedure gets faster. LemmaCertified Data See this solution → Healthcare Qualified Worker Assurance Credential checks stay rigorous. Staffing gets faster. LemmaCLUBS See this solution → Procurement & supply chain Supplier Credential Monitoring Not whether it arrived — whether it's valid, settled on the spot. Lemma See this solution → Media & content Content Authenticity Fakes will circulate. The real one can still be proven. Lemma See this solution → Services & retail Cross-group Identity Membership and entitlement checks, settled at the counter. LemmaCLUBS See this solution → AI adoption (all industries) AI Run Governance Hand the work to AI. Still be able to show what it did. LemmaCLUBS See this solution → Developers & agent operations Agent Authority Control Outside its authority, nothing executes. Trust402Lemma See this solution →
Use cases — by task
Find by task 36 in all — individual tasks, used across industries
01Let AI use internal data without it leaving7
Let AI use internal documents without touching the raw dataAI audit log proofRAG content provenanceRAG source attestationDetect prompt injection without exposing the contentconsolidatingProve EU AI Act compliance without sharing originalsProve model behavior held across a version change, retroactively
02Establish that a counterparty or a record is genuine16
Counterparty screening — pass the result, not the reasonsKYC/AML selective disclosureLP claim attestationNeed-to-know field signalsAge & sale-eligibility verificationStore-network license, hygiene & insurance complianceVerify supplier licenses, ISO & certificates without handing over originalsSupply chain component provenanceSupply chain ESG complianceCBAM supplier attestationEUDR traceabilityPresenting academic & employment credentialsProof of qualified assignment & safety trainingWork-fitness attestationBenefit & subsidy eligibility proofPublic procurement attestation
03Delegate authority to AI and agents, safely9
Delegate expense approval to AI agentsDelegate procurement to AI agentsDelegate API billing to AI agentsAgentic payment fraudProve agent-to-agent transactions with delegation chainsMulti-agent workflowsDelegated treasuryconsolidatingx402 commercemoved to product pageDeFi bridge verificationconsolidating
04Prove decisions and records after the fact4
Long-term contract records, provable years laterTamper-proof internal control & approval recordsTamper-proof incident & complaint recordsFinancial data exfiltration defense
The FoundationWhatever the industry,
the same foundation is doing the work.

The records stay on your side. Lemma receives only a hash and never holds the contents. A proof is charged once, at issuance; after that anyone can check it, any number of times, for free.

YOUR SIDE ANYONE Records, data, AI execution The raw data stays here HASH ONLY Issued once, charged once Lemma Counterparties Audit & regulators AI agents Anyone Verification is free, no key
Only a hash goes in. The raw data is never received No cap on the verifications that come out
Enterprise

Where do your own records
get stuck?

We find the records you explain at every submission and design what to attach proof to. A 30-minute call pins down where it happens, and we replace it with trust that carries without explanation.

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