The agent-native SMS subscriber reader
Connect any AI agent to your Postscript SMS list. Sync your subscribers and keywords into your organization's Brain, then ask the questions a subscriber list can actually answer: what share of revenue comes from SMS subscribers, how fast the list is growing and what the opt-out rate is, whether SMS opt-in tracks better retention, and which keywords are genuinely growing the list. Bounded, resumable syncs keep it current without re-reading everything.
How it works
From a connected SMS platform to a queryable subscriber list in four steps.
Sign up and get an API key
Create a free account at gentic.co, generate an API key from your dashboard, and use it as a Bearer token to authenticate your agent.
Connect Postscript in your dashboard
Paste your Postscript Private API key once in the Gentic dashboard (Integrations → Postscript). It's the key starting sk_, from Postscript → Account → API. The key is encrypted at rest and checked against Postscript on connect, and we read back which shop it belongs to automatically. The SMS Marketing server picks the connection up on its own; your agent never handles the credential.
Add the MCP server to your agent
Drop https://mcp.gentic.co/sms-marketing into Claude Code, Claude Web, OpenClaw, Claude Cowork, ChatGPT, n8n, or any MCP-compatible client. Pass your Gentic API key as a Bearer token — or connect via OAuth on clients that support it.
Sync, then ask anything
Run postscript_sync to pull your subscriber list into your Brain — bounded and resumable, so you can page through it a chunk at a time. Then ask your agent in plain language about list growth, opt-out rate, or how SMS subscribers spend compared to everyone else, and it queries the synced tables.
Available tools
2 tools your AI agent can call through the Model Context Protocol.
postscript_connection_status
Check whether this organization has Postscript connected and whether the stored API key still works.
postscript_sync
Sync this organization's Postscript SMS subscriber list into its data backend — READ-ONLY, one BOUNDED chunk per call.
Connect in seconds
Sign up, connect Postscript in your dashboard, grab your API key, and add the MCP server to your agent. Works with Claude Code, Claude Web, OpenClaw, Claude Cowork, ChatGPT, n8n, and any MCP client.
claude mcp add gentic-sms-marketing \
--transport http \
https://mcp.gentic.co/sms-marketing \
--header "Authorization: Bearer YOUR_API_KEY"You can also connect via OAuth — just add gentic-sms-marketing as a connector in Claude or ChatGPT settings. No API key needed; authentication is handled automatically.
Install the Gentic agent skill to teach your agent the optimal workflow so it gets the best results automatically.
npx skills add gentic-co/agent-skillsWorks with Claude Code, Cursor, Copilot, and 40+ other agents.
Free to sync, pay only for analysis
Syncing your Postscript subscriber list into Gentic and checking the connection are both free — you only pay for the analytics you run over it.
| Tool | Cost |
|---|---|
| postscript_connection_status | Free |
| postscript_sync | Free |
Pricing is pulled live from the Gentic MCP manifest so it always matches what you'll actually be charged.
Why agent-native SMS?
The interesting question about an SMS list is almost never inside the SMS tool. It's whether subscribers buy more, stay longer, and come back — and that answer lives in your orders and subscriptions, not in a messaging dashboard.
No UI to learn
Your AI agent is the interface. Ask what share of revenue comes from SMS subscribers, or what the opt-out rate did last quarter — in natural language, no filters to click, no exports.
It lands in YOUR warehouse
Subscribers arrive in your organization's Brain next to your orders, subscriptions and loyalty tables — with the Shopify customer link already on the row, so the join you actually want is one query away.
Phone numbers never stored
Numbers and customer names are removed before anything is written, and the removed field names come back on every sync so you can see exactly what was dropped. You get the analysable list without warehousing the contact details.
Free to sync
No monthly seats or platform fees. Syncing your Postscript data and checking the connection are free — you only pay for the analytics you run over it (e.g. query_data on the Gentic Data MCP).