Sonar Connections

Redeem an event code

event_redeem_code

Idempotent

Seats the person at an event with an event code from a badge, a poster, an email or a door. Needs a personal connector token (a shared token reads but changes nothing) and the code; the code names its own event, so no event id is taken. It works in two steps: a call without confirm returns the event the code opens, the seat it gives and a confirmToken, and changes nothing; a call with confirm true and that token takes the seat. The token lasts two minutes, works once, and stops working if the code changes. Redeeming works from anywhere, not only at the venue.

Input Schema

TableJSON Schema

Name	Required	Description
`code`	Yes	The code exactly as the person said or read it. Case, spaces and dashes are normalized, so "tie-24" and "TIE24" are the same code.
`confirm`	No	Absent on the first call, which changes nothing. true, together with confirmToken, makes the change.
`requestId`	No	An id for this redemption chosen by the caller, at least 8 characters. A repeat with the same id and the same code returns the first result without redeeming a second time.
`confirmToken`	No	The token the first call returned. Needed when confirm is true.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`ok`	No
`seat`	No
`error`	No
`changed`	No
`message`	No
`preview`	No
`replayed`	No
`servedBy`	No
`suggestions`	No
`confirmToken`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 11, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "anyOf": [
+    {
+      "required": [
+        "ok",
+        "changed"
+      ]
+    },
+    {
+      "properties": {
+        "ok": {
+          "const": false
+        }
+      },
+      "required": [
+        "ok"
+      ]
+    },
+    {
+      "properties": {
+        "found": {
+          "const": false
+        }
+      },
+      "required": [
+        "found"
+      ]
+    },
+    {
+      "required": [
+        "error"
+      ]
+    },
+    {
+      "required": [
+        "replayed"
+      ]
+    }
+  ],
+  "properties": {
+    "changed": {
+      "type": "boolean"
+    },
+    "confirmToken": {
+      "type": "string"
+    },
+    "error": {
+      "type": "string"
+    },
+    "message": {
+      "type": "string"
+    },
+    "ok": {
+      "type": "boolean"
+    },
+    "preview": {
+      "type": "object"
+    },
+    "replayed": {
+      "type": "boolean"
+    },
+    "seat": {
+      "type": "object"
+    },
+    "servedBy": {
+      "type": "string"
+    },
+    "suggestions": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    }
+  },
+  "type": "object"
+}

Changed3 schema fields changedOct 11, 2026

changedInput schema / properties / confirm / description

Previous value: -"Leave this out on the first call. Pass true with confirmToken to commit."New value: +"Absent on the first call, which changes nothing. true, together with confirmToken, makes the change."

changedInput schema / properties / confirmToken / description

Previous value: -"The token the preview returned. Required when confirm is true."New value: +"The token the first call returned. Needed when confirm is true."

changedInput schema / properties / requestId / description

Previous value: -"Your own id for this redemption, at least 8 characters. Sending the same one twice with the same code returns the first result instead of redeeming a second time."New value: +"An id for this redemption chosen by the caller, at least 8 characters. A repeat with the same id and the same code returns the first result without redeeming a second time."

AddedSep 28, 2026

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