Create Test Agent
Create a new RCS test agent for development and testing.
Overview
Test agents let you build and test full RCS functionality — rich cards, carousels, buttons, quick replies, and media messages — without going through the full carrier review process. Messages from test agents can only be sent to whitelisted phone numbers.
Limits
- Maximum 5 test agents per account.
Image Requirements
After Creation
Once your test agent is created, you’ll need to:
- Whitelist test phone numbers using
POST /rcs/test/agents/{agentId}/whitelist. - Accept the tester invite on each whitelisted device.
- Send messages using
POST /messages/send/rcswith the returned agent ID as thefromfield.
2-Minute Cooldown
After creating a test agent, there is a mandatory 2-minute cooldown before you can whitelist phone numbers. This is a requirement imposed by Google’s RBM platform.
Authentication
Request
URL to the agent's logo image. Displayed as the agent's avatar in conversations.
Requirements:
- Format: JPEG or PNG
- Max file size: 50 KB
- Recommended: Square aspect ratio
URL to the agent's hero banner image. Displayed at the top of the agent's profile.
Requirements:
- Format: JPEG or PNG
- Max file size: 200 KB
- Recommended: Landscape aspect ratio
Whether the agent supports two-way conversations. Set to true if the agent
will respond to user messages. Set to false for send-only agents (e.g., notifications).
The primary use case for the RCS agent. This helps carriers understand the purpose of the agent during review.
TRANSACTIONAL— Order confirmations, shipping updates, appointment reminders, and similar transactional notifications.PROMOTIONAL— Marketing messages, offers, discounts, and promotional content.OTP— One-time passwords and verification codes.MULTI_USE— A combination of transactional, promotional, and/or OTP messaging.
Response
The test agent was created successfully.
Use the returned id as the from field when sending RCS messages, and when whitelisting phone numbers.
The unique agent ID. Use this ID when sending messages, whitelisting numbers,
and performing other agent operations. Always prefixed with agent_.
The type of the agent. Test agents always have type TEST.

