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How to integrate Perigon MCP with Mastra AI

Connect Mastra AI to Perigon MCP. Get top technology news headlines today, summarize recent articles about climate change, and more using natural language, with authentication handled for you.

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Perigon is a news and web content API that delivers structured, real-time news data. It helps you power applications needing up-to-date, reliable news coverage and analysis.

9 Tools

Introduction

This guide walks you through connecting Perigon to Mastra AI using the Composio tool router. By the end, you'll have a working Perigon agent that can search news articles and stories, look up journalists and media sources, track companies and topics, and run vector search on articles through natural language commands.

This guide will help you understand how to give your Mastra AI agent real control over a Perigon account through Composio's Perigon MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Perigon with

Claude CodeClaude CoworkOpenAI Agents SDKClaude Agent SDKGrok BotCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKLlamaIndexCrewAIPydantic AIAutoGen

TL;DR

Here's what you'll learn:
  • Set up your environment so Mastra, OpenAI, and Composio work together
  • Create a Tool Router session in Composio that exposes Perigon tools
  • Connect Mastra's MCP client to the Composio generated MCP URL
  • Fetch Perigon tool definitions and attach them as a toolset
  • Build a Mastra agent that can reason, call tools, and return structured results
  • Run an interactive CLI where you can chat with your Perigon agent

What is Mastra AI?

Mastra AI is a TypeScript framework for building AI agents with tool support. It provides a clean API for creating agents that can use external services through MCP.

Key features include:

  • MCP Client: Built-in support for Model Context Protocol servers
  • Toolsets: Organize tools into logical groups
  • Step Callbacks: Monitor and debug agent execution
  • OpenAI Integration: Works with OpenAI models via @ai-sdk/openai

What is the Perigon MCP server, and what's possible with it?

The Perigon MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Perigon account. It provides structured and secure access to real-time news and web content data, so your agent can perform actions like searching news articles, aggregating trending stories, extracting web data, and analyzing news sentiment on your behalf.

  • Comprehensive news article search: Empower your agent to search and retrieve news articles from global sources using filters like date, topic, publisher, or region.
  • Real-time trending stories aggregation: Automatically gather and summarize the latest trending news across categories such as politics, technology, finance, and more.
  • Web content extraction: Let your agent pull structured data from online articles and websites, making it easy to analyze or repurpose content.
  • News sentiment and topic analysis: Enable your agent to analyze the sentiment and topical coverage of news stories to provide actionable insights or reports.
  • Customized news monitoring: Set up continuous monitoring for specific keywords, companies, or industries, so your agent can keep you updated with relevant news as it happens.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Node.js 18 or higher
  • A Composio account with an active API key
  • An OpenAI API key
  • Basic familiarity with TypeScript
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key.
  • You need credits or a connected billing setup to use the models.
  • Store the key somewhere safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Go to Settings and copy your API key.
  • This key lets your Mastra agent talk to Composio and reach Perigon through MCP.
3

Install dependencies

bash
npm install @composio/core @mastra/core @mastra/mcp @ai-sdk/openai dotenv

Install the required packages.

What's happening:

  • @composio/core is the Composio SDK for creating MCP sessions
  • @mastra/core provides the Agent class
  • @mastra/mcp is Mastra's MCP client
  • @ai-sdk/openai is the model wrapper for OpenAI
  • dotenv loads environment variables from .env
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates your requests to Composio
  • COMPOSIO_USER_ID tells Composio which user this session belongs to
  • OPENAI_API_KEY lets the Mastra agent call OpenAI models
5

Import libraries and validate environment

typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({
  apiKey: composioAPIKey as string,
});
What's happening:
  • dotenv/config auto loads your .env so process.env.* is available
  • openai gives you a Mastra compatible model wrapper
  • Agent is the Mastra agent that will call tools and produce answers
  • MCPClient connects Mastra to your Composio MCP server
  • Composio is used to create a Tool Router session
6

Create a Tool Router session for Perigon

typescript
async function main() {
  const session = await composio.create(
    composioUserID as string,
    {
      toolkits: ["perigon"],
    },
  );

  const composioMCPUrl = session.mcp.url;
  console.log("Perigon MCP URL:", composioMCPUrl);
What's happening:
  • create spins up a short-lived MCP HTTP endpoint for this user
  • The toolkits array contains "perigon" for Perigon access
  • session.mcp.url is the MCP URL that Mastra's MCPClient will connect to
7

Configure Mastra MCP client and fetch tools

typescript
const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      nasdaq: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

console.log("Fetching MCP tools from Composio...");
const composioTools = await mcpClient.getTools();
console.log("Number of tools:", Object.keys(composioTools).length);
What's happening:
  • MCPClient takes an id for this client and a list of MCP servers
  • The headers property includes the x-api-key for authentication
  • getTools fetches the tool definitions exposed by the Perigon toolkit
8

Create the Mastra agent

typescript
const agent = new Agent({
    name: "perigon-mastra-agent",
    instructions: "You are an AI agent with Perigon tools via Composio.",
    model: "openai/gpt-5",
  });
What's happening:
  • Agent is the core Mastra agent
  • name is just an identifier for logging and debugging
  • instructions guide the agent to use tools instead of only answering in natural language
  • model uses openai("gpt-5") to configure the underlying LLM
9

Set up interactive chat interface

typescript
let messages: AiMessageType[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end.\n");

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: "> ",
});

rl.prompt();

rl.on("line", async (userInput: string) => {
  const trimmedInput = userInput.trim();

  if (["exit", "quit", "bye"].includes(trimmedInput.toLowerCase())) {
    console.log("\nGoodbye!");
    rl.close();
    process.exit(0);
  }

  if (!trimmedInput) {
    rl.prompt();
    return;
  }

  messages.push({
    id: crypto.randomUUID(),
    role: "user",
    content: trimmedInput,
  });

  console.log("\nAgent is thinking...\n");

  try {
    const response = await agent.generate(messages, {
      toolsets: {
        perigon: composioTools,
      },
      maxSteps: 8,
    });

    const { text } = response;

    if (text && text.trim().length > 0) {
      console.log(`Agent: ${text}\n`);
        messages.push({
          id: crypto.randomUUID(),
          role: "assistant",
          content: text,
        });
      }
    } catch (error) {
      console.error("\nError:", error);
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    console.log("\nSession ended.");
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main().catch((err) => {
  console.error("Fatal error:", err);
  process.exit(1);
});
What's happening:
  • messages keeps the full conversation history in Mastra's expected format
  • agent.generate runs the agent with conversation history and Perigon toolsets
  • maxSteps limits how many tool calls the agent can take in a single run
  • onStepFinish is a hook that prints intermediate steps for debugging

Complete Code

Here's the complete code to get you started with Perigon and Mastra AI:

typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({ apiKey: composioAPIKey as string });

async function main() {
  const session = await composio.create(composioUserID as string, {
    toolkits: ["perigon"],
  });

  const composioMCPUrl = session.mcp.url;

  const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      perigon: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

  const composioTools = await mcpClient.getTools();

  const agent = new Agent({
    name: "perigon-mastra-agent",
    instructions: "You are an AI agent with Perigon tools via Composio.",
    model: "openai/gpt-5",
  });

  let messages: AiMessageType[] = [];

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: "> ",
  });

  rl.prompt();

  rl.on("line", async (input: string) => {
    const trimmed = input.trim();
    if (["exit", "quit"].includes(trimmed.toLowerCase())) {
      rl.close();
      return;
    }

    messages.push({ id: crypto.randomUUID(), role: "user", content: trimmed });

    const { text } = await agent.generate(messages, {
      toolsets: { perigon: composioTools },
      maxSteps: 8,
    });

    if (text) {
      console.log(`Agent: ${text}\n`);
      messages.push({ id: crypto.randomUUID(), role: "assistant", content: text });
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main();

Conclusion

You've built a Mastra AI agent that can interact with Perigon through Composio's Tool Router. You can extend this further by:
  • Adding other toolkits like Gmail, Slack, or GitHub
  • Building a web-based chat interface around this agent
  • Using multiple MCP endpoints to enable cross-app workflows
TOOLS

Supported Tools

Every Perigon action and event your agent gets out of the box.

Get News Articles

Tool to retrieve a list of news articles based on filters.

Get Companies

Tool to retrieve information on companies in Perigon’s entity database.

Get Journalists

Tool to retrieve journalist profiles including title, Twitter handle, bio, and location.

Get Media Sources

Tool to retrieve a list of media sources with filtering options.

Get Stories

Tool to retrieve clusters of related articles covering the same event or topic with aggregate metrics.

Get Topics

Tool to retrieve all available Perigon news topics.

Get Wikipedia Articles

Tool to search and filter Wikipedia pages.

Vector Search Articles

Tool to perform a vector search on Perigon’s real-time news database.

Vector Search Wikipedia

Tool to perform semantic retrieval of Wikipedia pages using vector search.

FRAMEWORKS

How to build Perigon MCP Agent with another framework

Claude Code logo

Claude Code

Use Perigon MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Perigon MCP with Claude Cowork

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Perigon MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Perigon MCP with Claude Agent SDK

Grok Bot logo

Grok Bot

Use Perigon MCP with Grok Bot

Codex logo

Codex

Use Perigon MCP with Codex

OpenClaw logo

OpenClaw

Use Perigon MCP with OpenClaw

Hermes logo

Hermes

Use Perigon MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Perigon MCP with Atomic Agent

Google ADK logo

Google ADK

Use Perigon MCP with Google ADK

LangChain logo

LangChain

Use Perigon MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Perigon MCP with Vercel AI SDK

LlamaIndex logo

LlamaIndex

Use Perigon MCP with LlamaIndex

CrewAI logo

CrewAI

Use Perigon MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Perigon MCP with Pydantic AI

AutoGen logo

AutoGen

Use Perigon MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Perigon MCP server, the agents and LLMs can only access a fixed set of Perigon tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Perigon and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Mastra AI fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Perigon tools.

Yes, absolutely. You can configure which Perigon scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Perigon data and credentials are handled as safely as possible.

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