Trends MCP for Replit Agent

Replit Agent builds full-stack apps from natural language. Without live data connectors, trend questions default to stale training knowledge or manual copy-paste from browser tabs. Trends MCP closes that gap: one custom MCP server connection gives Agent structured JSON from Google Search, TikTok, Reddit, YouTube, Amazon, npm, and 15 live trending feeds.

Prerequisites

Before adding the integration, obtain a Trends MCP API key:

1. Visit https://www.trendsmcp.ai/account.
2. Create a free account. No credit card is required.
3. Copy the API key from the dashboard. Free tier includes 100 requests per month across all tools.

Add Trends MCP as a custom server

Replit added custom MCP support in 2026. The connection is account-level, not per-project, so every Replit app under the account can use the tools once saved.

1. Open https://replit.com/integrations.
2. Scroll to MCP Servers for Replit Agent.
3. Click Add MCP server.
4. Set the display name to Trends MCP.
5. Paste the server URL: https://api.trendsmcp.ai/mcp
6. Open Advanced settings and add a custom header:
7. Key: Authorization
8. Value: Bearer YOUR_API_KEY (replace with the key from the account dashboard)
9. Click Test and save. Replit validates the connection and lists the server under MCP Servers.

Only connect MCP servers from trusted sources. A connected server exposes its tools to Agent during every session.

What Replit Agent can query after connection

Trends MCP exposes three MCP tools. Agent picks the tool based on the prompt.

get_trends

Returns approximately five years of weekly data points for one keyword on one source. Scores normalize to 0 to 100 where the pipeline supports it. Absolute volume appears when available.

Example REST body (equivalent to the MCP tool):

{"mode": "get_time_series", "source": "google search", "keyword": "meal prep delivery"}

Supported keyword sources include google search, youtube, tiktok, reddit, amazon, wikipedia, news volume, news sentiment, npm, steam, app downloads, and app rankings. Each source has keyword format rules documented at https://www.trendsmcp.ai/docs.

get_growth

Calculates point-to-point percentage change over preset periods (7D, 30D, 3M, 12M, YTD, and others) or custom date pairs. Pass comma-separated sources to compare the same keyword across platforms in one request.

{"mode": "get_growth", "source": "google search,youtube,tiktok", "keyword": "ai agent", "percent_growth": ["12M"]}

get_top_trends

Returns the current ranked leaderboard for one live feed. No keyword is required. Feed names are case-sensitive.

{"mode": "get_top_trends", "type": "Google Trends", "limit": 10}

Available feed types include Google Trends, TikTok Trending Hashtags, YouTube Trending, X (Twitter) Trending, Reddit Hot Posts, Wikipedia Trending, Amazon Best Sellers Top Rated, App Store Top Free, GitHub Trending Repos, and others listed on the data sources page.

Example prompts that route to Trends MCP

Phrase prompts so Agent selects the MCP integration instead of a web search:

• "Using Trends MCP, what is trending on Google right now?"
• "Via Trends MCP, show 12-month Google Search growth for the keyword meal kit."
• "Using Trends MCP, compare TikTok and YouTube growth for Stanley cup over the past 6 months."
• "Via Trends MCP, pull npm download trends for the package name langchain."

Agent logs show which MCP tool ran. Look for a Trends MCP integration match in the tool call panel.

Request budgeting on the free tier

The free plan allows 100 requests per month. Each tool call counts as one request regardless of how many growth periods or data points the response contains.

get_growth with comma-separated sources costs one request, not one per source. That pattern stretches the free allocation further than separate pulls.

Paid plans start at $19/month for 1,000 requests. See pricing for current tiers.

Install link for documentation and READMEs

Replit supports one-click install badges. Encode this JSON as base64 for the mcp query parameter on https://replit.com/integrations:

{
  "displayName": "Trends MCP",
  "baseUrl": "https://api.trendsmcp.ai/mcp",
  "headers": [
    {
      "key": "Authorization",
      "value": "Bearer YOUR_API_KEY"
    }
  ]
}

Replace YOUR_API_KEY before sharing the link. Users who click the badge land in the Integrations pane with fields pre-filled.

When to use Trends MCP inside Replit Agent

Trends MCP fits Replit workflows that need grounded demand data while Agent writes code: validating a startup idea before scaffolding, picking npm dependencies based on download trajectories, seeding a trend dashboard with live feed data, or comparing cross-platform growth for a marketing landing page.

For IDE-native setups outside Replit, see Trends MCP for Cursor and Trends MCP for Claude. For REST-only automation without Agent, POST to https://api.trendsmcp.ai/api with the same JSON bodies.