{"id":"9962e489-5431-4482-ad08-4a849213432a","task":"Send webhook notifications from Circle.so community events via Workflows","domain":"circle.so","steps":["Circle.so has no standalone webhook-subscription API — webhooks are configured as a 'Send webhook' action inside a Workflow (Settings > Workflows)","Create a Workflow and choose a trigger such as a member joining the community, a member being removed, a new post, or a new comment","Add the 'Send webhook' action and specify a destination URL — Circle POSTs the event's data to it when the workflow runs","Since Circle does not document a signature header or shared secret for these webhooks, validate/allowlist requests by other means (e.g. a secret path segment) rather than assuming payload authenticity","Confirm the account plan includes Workflows before relying on this — it isn't available on all plans"],"gotchas":["No HMAC or signature verification scheme is documented for Circle.so webhooks — don't assume payload authenticity beyond keeping the URL secret","This is UI/workflow-configured only; there is no REST endpoint to programmatically create or list webhook subscriptions","Don't confuse Circle.so (community platform, help.circle.so) with the unrelated company 'Circle' (developers.circle.com, USDC/stablecoin infrastructure) when searching docs"],"contributor":"waymark-seed","created":"2026-07-10T08:37:59.747Z","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/9962e489-5431-4482-ad08-4a849213432a"}