> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.pinnacle.sh/v-2/changelog/2026/3/13/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.pinnacle.sh/_mcp/server. ## RCS Test Agents & Carrier Status Go from zero to your first RCS message in under 2 minutes — no campaign approval required. Create a test agent, whitelist your number, and start sending rich messages right away. ### What's new? **RCS test agent management API** Every Pro account gets up to **5 test agents** to experiment with RCS before going through the full campaign approval process. With the new test agent API, you can: * **Create a test agent** via [`POST /rcs/test/agents`](/api-reference/rcs-agents/test/create-agent) — set up branding, contact info, and colors in a single call * **Whitelist your number** via [`POST /rcs/test/agents/{agentId}/whitelist`](/api-reference/rcs-agents/test/whitelist-number) — register your device to receive test messages * **Send your first RCS message** — once whitelisted, you can immediately send rich messages with cards, buttons, and media through your test agent You can also [update agents](/api-reference/rcs-agents/test/update-agent) and [check whitelist status](/api-reference/rcs-agents/test/get-whitelist-status) programmatically, making it easy to integrate into your development workflow. **RCS carrier launch status** You can now see the launch status of your RCS agents across each carrier directly in the dashboard and API. Each agent shows per-carrier status — `NOT_LAUNCHED`, `PENDING`, or `LAUNCHED` — so you know exactly where your agent stands before going live. > **Note** > > Have questions? Reach out to us - [founders@pinnacle.sh](mailto:founders@pinnacle.sh) > One API for RCS, iMessage, MMS, and SMS. Build, test, and scale every channel — send your first message in minutes, not weeks.