Name: onchain activity index
Author: nexus-mcp-infra

What can you do with onchain activity index?

On-Chain Activity Index

Computes a 0-100 quantitative DeFi Protocol Activity Index from real, public DefiLlama data (TVL trend, fee/volume activity trend, chain diversification, scale). NEXUS candidate #9 -- manual build, not FORGE-generated.

This is a pure descriptive metric -- not a trading signal, price prediction, or financial recommendation of any kind.

POST /activity-index {"protocol_slug": "uniswap"} -- charged $0.30 via x402 (Base Sepolia testnet).
MCP tool get_onchain_activity_index at /mcp -- currently free.
GET /health, GET /.well-known/agent-card.json, GET /openapi.json (has x-payment-info).

Live: https://onchain-activity-index-325572559480.us-central1.run.app

Full source, methodology, and quality-gate history: see the private NEXUS monorepo (manual_assets/onchain-activity-index/). This repo exists to satisfy MCP Registry namespace ownership verification (io.github.nexus-mcp-infra/onchain-activity-index) and as the public landing page for the deployed service.

A free, MIT-licensed companion skill (client usage guide, no payment required to read/use) lives at nexus-mcp-infra/onchain-activity-skill.

Install

Add onchain activity index to your client. Pick the one you use.

claude mcp add --transport http onchain-activity-index https://onchain-activity-index-325572559480.us-central1.run.app/mcp

codex mcp add onchain-activity-index --url https://onchain-activity-index-325572559480.us-central1.run.app/mcp

{
  "mcpServers": {
    "onchain-activity-index": {
      "url": "https://onchain-activity-index-325572559480.us-central1.run.app/mcp"
    }
  }
}

Add to `~/.cursor/mcp.json`, or `.cursor/mcp.json` for a single project.

{
  "servers": {
    "onchain-activity-index": {
      "type": "http",
      "url": "https://onchain-activity-index-325572559480.us-central1.run.app/mcp"
    }
  }
}

Add to `.vscode/mcp.json` in your workspace.

{
  "mcpServers": {
    "onchain-activity-index": {
      "url": "https://onchain-activity-index-325572559480.us-central1.run.app/mcp"
    }
  }
}

Add to `claude_desktop_config.json`, then restart Claude Desktop.

{
  "mcpServers": {
    "onchain-activity-index": {
      "serverUrl": "https://onchain-activity-index-325572559480.us-central1.run.app/mcp"
    }
  }
}

Add to `~/.codeium/windsurf/mcp_config.json`.

Score

39 / 100

Incomplete

Documentation4/25
Maintenance19/25
Trust6/20
Capability0/15
Install experience12/15

Documents what it does and how to connect
Has a resolvable package or endpoint
Exposes at least one tool, prompt or resource
README has substantive content
Includes a code example
Documents its configuration
Mentions credentials or security posture
Last commit 9 days ago
Has a release history
Repository is not archived
No licence detected
Namespace verified in the official MCP registry
Claimed by its owner
Published under an organisation
0 tool(s) documented
Provides prompt templates
Provides resources
6 documented install method(s)
Published to a package registry
Offers a hosted endpoint — no local install

Read the full rubric →

Version history

Versions	Published
1.0.0Latest	Aug 22, 2026