Claiming

Device claiming lets an end user securely associate a device with their account after it is already deployed and connected. See Claiming for the full workflow — this page covers only the MQTT transport step where the device publishes the claiming request.

Publish a Claim Request

Format	Topic
Short	`v2/c`
Standard	`v1/devices/me/claim`

Both fields are optional:

Field	Description	Default
`secretKey`	Secret the user must supply to complete the claim.	Empty string
`durationMs`	Time window in milliseconds during which the claim can be completed.	`SECURITY_CLAIM_DURATION` server setting

Payload:

JSON
Protobuf

{"secretKey": "mySecret", "durationMs": 60000}

When the device profile payload type is set to Protobuf, or when using the short Protobuf topic (v2/c/p), encode the payload with this schema. This schema is fixed and cannot be customized in the device profile.

syntax = "proto3";

message ClaimDevice {
  string secretKey = 1;
  int64 durationMs = 2;
}

Publishing to this topic initiates the claiming workflow. ThingsBoard marks the device as claimable and waits for a user to complete the claim (via the dashboard Claim Device widget or the REST API) within the specified duration.

Example

mosquitto_pub -d -q 1 -h "mqtt.eu.thingsboard.cloud" -p 1883 -t "v2/c" -u "$ACCESS_TOKEN" -m '{"secretKey": "mySecret", "durationMs": 60000}'

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