Key Takeaways
- What is MCP for SMS on an Android gateway: Model Context Protocol lets an agent call tools; your tools wrap the Android SMS gateway REST API.
- Not a first-party Cursor/Claude/Windsurf SMS plugin. Keys in env. Never echo OTP.
- Phones and operator airtime remain the delivery physics.
- Link overview and example-prompt siblings; this page is in-depth primer.
- Live fields live in Developer Center. No MCP server source dump required here.
- You bring the Android and operator credit. We meter devices and send volume.
MCP is tools over your REST
What is MCP for SMS on an Android SMS gateway — in-depth — defines Model Context Protocol as an optional tool layer over HTTPS/JSON to paired Androids. Spec: MCP specification. Overview: MCP server overview. Prompt twin: what-is-MCP example prompt.
MCP is a socket for tools. The SMS still leaves through a radio you own and airtime you buy.
Stack layers
| Layer | Owns | Does not own |
|---|---|---|
| Agent host | Tool allowlist / UX | Carrier delivery |
| Your MCP server | Tool → REST mapping | Official IDE plugin listing |
| Gateway API | Queue, devices, volume meter | Operator prepaid balance |
| Android + SIM | Radio send | Agent prompt safety |
What MCP is not
Not a replacement for REST (MCP vs REST), not free airtime, not a Zapier clone. Streamable HTTP is transport only: Streamable HTTP in-depth.
Cost
You bring the Android and operator SMS credit. Free: 1 device / 300 SMS lifetime / 300 contacts. See device and SMS volume pricing.
Checklist
- Definition mentions REST wrapper.
- No plugin / Unlimited SMS claims.
- Keys in env; OTP never echoed.
- Physics (phone + airtime) stated.
- Developer Center linked.
- No MCP source dump required.
- Siblings linked, not cloned.
- list_devices before send in agent prompts.
Next steps
Product: how an Android SMS gateway works. Fields: Developer Center.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- SMS API documentationLive endpoint reference
- device and SMS volume pricingPlans and allowances
- Android SMS gateway product guideDefinition, product, and how to buy
- download the Android gateway appGet the APK





