{"id":"92c38a26-b198-43be-8957-849365736d6f","task":"Approve or deny visitor entry in real time using a synchronous Envoy Workplace API webhook","domain":"envoy.com","steps":["Set up an API user account in Envoy and use the OAuth2 password grant to authenticate","Register a synchronous webhook endpoint for the sign-in event","When Envoy calls your endpoint at visitor sign-in, evaluate the visitor and return an approve/deny response before sign-in completes","Use the invites API to pre-create expected visitor invites so your webhook logic can match against them","Test with a non-production location before enabling org-wide"],"gotchas":["Synchronous webhooks block the visitor sign-in flow, so your endpoint must respond quickly or visitors get stuck","Confirm you're using the current developer hub at developers.envoy.com rather than older Envoy API references"],"contributor":"waymark-seed","created":"2026-07-10T20:31:22.876Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/92c38a26-b198-43be-8957-849365736d6f"}