REST Countries MCP Server for Mastra AI 6 tools — connect in under 2 minutes
Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect REST Countries through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import { Agent } from "@mastra/core/agent";
import { createMCPClient } from "@mastra/mcp";
import { openai } from "@ai-sdk/openai";
async function main() {
// Your Vinkius token. get it at cloud.vinkius.com
const mcpClient = await createMCPClient({
servers: {
"rest-countries": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "REST Countries Agent",
instructions:
"You help users interact with REST Countries " +
"using 6 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with REST Countries?"
);
console.log(result.text);
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About REST Countries MCP Server
Empower your AI agent to orchestrate your entire global research workflow with REST Countries, the authoritative source for geographic and geopolitical data. By connecting REST Countries to your agent, you transform complex demographic searches into a natural conversation. Your agent can instantly search for countries, audit currency distributions, and retrieve language metadata without you ever touching a technical database. Whether you are conducting market expansion research or building global applications, your agent acts as a real-time geographic consultant, ensuring your data is always comprehensive and well-categorized.
Mastra's agent abstraction provides a clean separation between LLM logic and REST Countries tool infrastructure. Connect 6 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.
What you can do
- Country Auditing — Search for any country by its common or official name and retrieve detailed metadata, including capitals and population counts.
- Regional Oversight — Browse countries by region or subregion to maintain a clear view of global geographic distributions.
- Economic Intelligence — Query countries by currency to understand the reach of specific financial systems instantly.
- Linguistic Discovery — Retrieve lists of countries that speak specific languages to assist in localization planning.
- Spatial Discovery — Retrieve official flags and geographic coordinates for any country ID to maintain visual and spatial context.
The REST Countries MCP Server exposes 6 tools through the Vinkius. Connect it to Mastra AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect REST Countries to Mastra AI via MCP
Follow these steps to integrate the REST Countries MCP Server with Mastra AI.
Install dependencies
Run npm install @mastra/core @mastra/mcp @ai-sdk/openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save to agent.ts and run with npx tsx agent.ts
Explore tools
Mastra discovers 6 tools from REST Countries via MCP
Why Use Mastra AI with the REST Countries MCP Server
Mastra AI provides unique advantages when paired with REST Countries through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add REST Countries without touching business code
Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation
TypeScript-native: full type inference for every REST Countries tool response with IDE autocomplete and compile-time checks
One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure
REST Countries + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the REST Countries MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query REST Countries, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed REST Countries as a first-class tool in your product's AI features with Mastra's clean agent API
Background jobs: schedule Mastra agents to query REST Countries on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using REST Countries tools alongside other MCP servers
REST Countries MCP Tools for Mastra AI (6)
These 6 tools become available when you connect REST Countries to Mastra AI via MCP:
get_all_countries
Get a list of all countries in the world
get_countries_by_currency
List countries that use a specific currency
get_countries_by_language
List countries that speak a specific language
get_countries_by_region
List countries in a specific region or subregion
get_country_by_code
Search for a country by its ISO alpha-2 or alpha-3 code
get_country_by_name
Search for a country by its common or official name
Example Prompts for REST Countries in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with REST Countries immediately.
"Search for the country 'Brazil' using REST Countries."
"List all countries in the region 'Europe'."
"Which countries speak 'Spanish'?"
Troubleshooting REST Countries MCP Server with Mastra AI
Common issues when connecting REST Countries to Mastra AI through the Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpREST Countries + Mastra AI FAQ
Common questions about integrating REST Countries MCP Server with Mastra AI.
How does Mastra AI connect to MCP servers?
MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.Can Mastra agents use tools from multiple servers?
Does Mastra support workflow orchestration?
Connect REST Countries with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect REST Countries to Mastra AI
Get your token, paste the configuration, and start using 6 tools in under 2 minutes. No API key management needed.