{
  "markdown": "# On-Chain Activity Index\n\nComputes a 0-100 quantitative **DeFi Protocol Activity Index** from real, public DefiLlama data\n(TVL trend, fee/volume activity trend, chain diversification, scale). NEXUS candidate #9 --\n**manual build, not FORGE-generated.**\n\nThis is a pure descriptive metric -- **not a trading signal, price prediction, or financial\nrecommendation of any kind.**\n\n- `POST /activity-index {\"protocol_slug\": \"uniswap\"}` -- charged **$0.30 via x402** (Base mainnet, real USDC).\n- MCP tool `get_onchain_activity_index` at `/mcp` -- currently free.\n- `GET /health`, `GET /.well-known/agent-card.json`, `GET /openapi.json` (has `x-payment-info`).\n\nLive: https://onchain-activity-index-325572559480.us-central1.run.app\n\n## Mainnet cutover (2026-09-03)\n\nOriginally built and measured on Base Sepolia testnet. Cut over to Base mainnet: x402 settlement moved to\nthe CDP facilitator (`create_facilitator_config()`, same swap already applied to\n`ws`/`live-entity-verification`/`erc8004-agent-liveness`), and the payto wallet moved to\n`NEXUS_X402_PAYTO_ADDRESS` (fail-fast env var, no placeholder default, renamed from\n`X402_WALLET_ADDRESS`). `CDP_API_KEY_ID`/`CDP_API_KEY_SECRET` and `NEXUS_X402_PAYTO_ADDRESS` must be set\nin Cloud Run before this deploys.\n\nFull source, methodology, and quality-gate history: see the private NEXUS monorepo\n(`manual_assets/onchain-activity-index/`). This repo exists to satisfy MCP Registry namespace\nownership verification (`io.github.nexus-mcp-infra/onchain-activity-index`) and as the public\nlanding page for the deployed service.\n\nA free, MIT-licensed companion skill (client usage guide, no payment required to read/use) lives at\n[nexus-mcp-infra/onchain-activity-skill](https://github.com/nexus-mcp-infra/onchain-activity-skill).\n",
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  "repo_slug": "nexus-mcp-infra/onchain-activity-index",
  "fonte": "repo",
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  "api": "https://agentalog.com/api/listings/mcp_io_github_nexus_mcp_infra_onchain_activi_94e41e01/readme"
}