What is the SecondSim remote MCP server?
The SecondSim remote MCP server is a hosted Model Context Protocol endpoint at https://www.secondsim.co.uk/api/mcp, so AI assistants can connect to it without installing or running anything locally.
S
SecondSim MCP ServerVerifiedFeatured
Basic information
Transport
Streamable HTTP
Authentication
Check provider docs
Category
Developer Tools
Submitted by
Rob Brock
About SecondSim MCP Server
econdSim provisions real UK mobile numbers (non-VoIP) via eSIM, built for freelancers, sole traders, small businesses, and enterprise teams. Unlike VoIP apps and virtual numbers, SecondSim numbers register as genuine physical endpoints on the Tier-1 UK cellular network — so they pass standard identity and security checks the same way any regular mobile number does.
Connection details
https://www.secondsim.co.uk/api/mcpSetup
claude mcp add secondsim --transport http https://www.secondsim.co.uk/api/mcpSecondSim MCP Server tools
3Checks if a specific SecondSim UK eSIM plan is available, or lists all available plans and pricing if planId is omitted.
Checks if a specific SecondSim UK eSIM plan is available, or lists all available plans and pricing if planId is omitted. (Alias for check_plan_availability)
Returns a SecondSim Checkout URL for purchasing a UK +44 eSIM plan. No charge occurs until the customer completes payment on the checkout page. If the customer provides their email address, include it to pre-fill and fast-track checkout.
Overview
Type: Remote Server (Streamable HTTP)
Endpoint: https://www.secondsim.co.uk/api/mcp
Category: Telecom / eSIM / Payments / Identity Verification
Overview
SecondSim provisions real UK mobile numbers (non-VoIP) via eSIM, built for freelancers, sole traders, small businesses, and enterprise teams. Unlike VoIP apps and virtual numbers, SecondSim numbers register as genuine physical endpoints on the Tier-1 UK cellular network — so they pass standard identity and security checks the same way any regular mobile number does.
This MCP server lets AI agents check plan availability and generate secure checkout links on a user's behalf, enabling end-to-end eSIM purchase automation.
What This Server Does
- Check plan availability — query live UK eSIM plan inventory and pricing
- Generate checkout links — create secure, dynamic Stripe Checkout sessions for 1–50 eSIMs in a single request
- Idempotent purchases — built-in request deduplication (UUID-based idempotency keys) prevents duplicate charges from agent retries
Primary Use Cases
- Small business deployment: instantly provision dedicated work numbers on employees' existing phones (BYOD) via eSIM — no separate hardware or corporate data plans required
- Reliable identity verification: because SecondSim numbers are genuine cellular connections, customers pass SMS 2FA and identity checks with services that apply extra scrutiny to
Frequently asked questions
How do I connect to the SecondSim MCP server?
Add the endpoint https://www.secondsim.co.uk/api/mcp to any MCP-compatible client such as Claude Code, Cursor, or VS Code. The setup snippets on this page configure each client in one step.
Does the SecondSim MCP server require authentication?
Authentication requirements for SecondSim have not been confirmed in this listing. Check the provider’s documentation before connecting.
Which transport does the SecondSim MCP server use?
SecondSim exposes a Streamable HTTP endpoint, the transport used by remote MCP servers and supported by all major MCP clients.
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