Onchain Activity Index

io.github.nexus-mcp-infraPublished by GitHub account nexus-mcp-infrav1.0.0Updated Oct 24, 2026

DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data

VerifiedStreamable HTTPWeb executableFinanceData & Analytics

Overview

AI-generated overview

A remote MCP server that computes a 0-100 DeFi protocol activity index from public DefiLlama data, such as TVL trends, fee and volume activity, and chain spread

What you can do
Retrieve a quantitative activity score for a named DeFi protocol, built from DefiLlama data on TVL trend, fee and volume activity, chain diversification and scale. The score is descriptive only, not a trading signal or price prediction. A separate HTTP endpoint offers the same index on a paid basis, while the MCP tool is currently free.
When to use it
Useful when you want a quick, standardized read on how active a DeFi protocol is, for comparison or research write-ups, rather than price or trading analysis.
Requirements
A remote streamable HTTP endpoint; no local runtime, account, API key or header is declared. The server relies on public DefiLlama data and network access to the hosted service.
Before you install
The paid HTTP endpoint charges real USDC on Base mainnet via x402; the MCP tool is described as free only for now, so that could change. The index is descriptive and explicitly not financial advice or a trading signal. The README notes the service was recently moved from testnet to mainnet.

Installation

In SourceWeft

  1. Open Onchain Activity Index in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.nexus-mcp-infra%2Fonchain-activity-index/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

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

README

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 mainnet, real USDC).
  • 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

Mainnet cutover (2026-09-03)

Originally built and measured on Base Sepolia testnet. Cut over to Base mainnet: x402 settlement moved to the CDP facilitator (create_facilitator_config(), same swap already applied to ws/live-entity-verification/erc8004-agent-liveness), and the payto wallet moved to NEXUS_X402_PAYTO_ADDRESS (fail-fast env var, no placeholder default, renamed from X402_WALLET_ADDRESS). CDP_API_KEY_ID/CDP_API_KEY_SECRET and NEXUS_X402_PAYTO_ADDRESS must be set in Cloud Run before this deploys.

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.

Source: README.md at commit 64b7c31

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.