PayStamp

Payroll vendors are adding proprietary assistants and anomaly features, but external agents may have no consistent, attributable way to consume their outputs. The supplied research confirms several recent incumbent launches, an open agent-tool protocol, a live HR tool server and a mature open signing system. It found no reviewed vendor-neutral wrapper across payroll assistants. Crucially, it did not confirm self-serve interfaces for the named payroll products, so provider access and redistribution rights are pre-build gates rather than assumed integrations.

PayStamp would preserve customer, payroll provider, tenant, source event identifier, event type, source timestamp, retrieval method, source payload hash, normalized claim, schema version, model assertion, prompt metadata, jurisdiction assertion, receipt version, signer identity, signature result, policy version, route candidate, named reviewer, human finding, acknowledgment, correction, revocation and source readback as distinct records. Credentials and raw payroll data stay outside model context wherever possible.

A signature supports bounded integrity and signer attribution; it does not prove that a provider event is true, complete, lawful or correctly interpreted. A normalized receipt is not a paystub, provider acceptance, audit evidence by default or legal conclusion. Policy evaluation proposes a route and never authorizes payroll changes, employee decisions, submission or money movement. Provider terms, customer permission and qualified payroll, security and legal review control every adapter.

The pilot should use synthetic provider events or an expressly authorized export from one source, then route only to a test queue. Buyer role, organization size, event volume, provider access, budget and willingness to pay per event remain unverified. Pricing must be researched rather than inherited from the concept.

A payroll-platform, integration, security or operations owner needing attributable read-only event exchange across approved payroll and agent systems.