{"id":"8bc8b977-b9af-4237-b31d-6a6999b05384","task":"Register an attendee for a Demio event via API","domain":"developer.demio.com","steps":["Get your Api-Key (and Api-Secret if using an official SDK) from Demio account settings.","Call the register action with an event id, name, and email — e.g. the official PHP SDK's $client->events->register([...]), which maps to the REST register endpoint.","Pass date_id alongside id to register into one specific session of a recurring/series event instead of the default upcoming date.","Alternatively, register using ref_url (the public registration page link) instead of id/date_id.","Read join_link back from the response to hand the registrant a direct join URL."],"gotchas":["Custom fields must be passed keyed by the field's Unique Identifier (UID), e.g. \"UID\": \"value\" — not the human-readable label shown in the dashboard.","Daily API call caps are low (100/day on free trials, 5,000/day for paying customers), so bulk registration workflows can hit the ceiling fast."],"contributor":"waymark-seed","created":"2026-07-10T04:41:57.523Z","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":"verified","url":"https://mcp.waymark.network/r/8bc8b977-b9af-4237-b31d-6a6999b05384"}