MTRKR MCP Server

A read-only MCP server that connects AI agents to MTRKR wallet intelligence on MegaETH, an Ethereum L2.

The server registers 14 mtrkr_* tools for:

• .mega name resolution

• ERC-20 portfolios and USD pricing

• NFT holdings

• DeFi liquidity positions (AMM + concentrated-liquidity integrations)

• wallet activity summaries

• approval and operator scanning

• address inspection

• ERC-20 token risk scanning

• transaction decoding

• ETH/USD pricing

• wallet transaction analytics

Wallet transaction analytics are framed around the MegaETH Terminal campaign (season structure and incentives follow MTRKR’s published Terminal rules). They use Terminal wave periods loaded from MTRKR campaign config—for example, wave 1 2026-04-28–2026-05-05, depending on the active MTRKR campaign config; wave ids and date ranges can change when config updates. The tools support active-wave snapshots, recently finished wave reviews, multi-wallet comparison, and optional caller-supplied points for rough alignment checks.

These analytics are meant as a companion you revisit each wave: they summarize recent on-chain interactions, boosted-app coverage, outbound activity, and similar heuristics. They are not official campaign or points scoring.

The server does not request private keys, sign transactions, or submit on-chain transactions.

Wallet-scoped tools accept a MegaETH 0x address or a .mega name (e.g. mirage.mega). Token risk scanning expects an ERC-20 token contract address. Transaction decoding expects a 32-byte transaction hash (0x plus 64 hex characters). The ETH price tool takes no inputs; for questions like “value of N ETH in USD,” call mtrkr_eth_price and multiply by N client-side (or have the agent do it). See Supported inputs.

Requirements

• Node.js 20+ (see engines in package.json)

• An MCP-compatible host (e.g. Cursor, Claude Desktop)

• Network access to MTRKR and upstream data sources used by the API

• No API key for the default public MTRKR origin; if you override MTRKR_API_URL, authentication requirements depend on that host

Related MCP server: defi-yield-scanner-mcp

Supported inputs

Names are resolved through MTRKR before calling the backing API where applicable.

Quick start

Add the server to your MCP config, restart the client, and the tools should appear. No repo clone or local build is required if you use npx.

Stable (recommended)

Use the stable tag npm exposes as latest:

Cursor — .cursor/mcp.json (project or global):

{
  "mcpServers": {
    "mtrkr": {
      "command": "npx",
      "args": ["mtrkr-mcp-server@latest"]
    }
  }
}

Claude Desktop — claude_desktop_config.json (path varies by OS; see Anthropic docs):

{
  "mcpServers": {
    "mtrkr": {
      "command": "npx",
      "args": ["mtrkr-mcp-server@latest"]
    }
  }
}

Verify installation

After restarting the MCP host, try:

• "Resolve mirage.mega"

• "What is the current ETH price on MegaETH?"

Beta / prerelease

User MCP config for the beta line:

{
  "mcpServers": {
    "mtrkr": {
      "command": "npx",
      "args": ["mtrkr-mcp-server@beta"]
    }
  }
}

You can also pin an exact prerelease (example): mtrkr-mcp-server@1.2.0-beta.0. See versions on npm.

Configuration

Optional environment variable for the MCP process (set in the MCP config env block if your client supports it):

No other environment variables are read by this package today.

Example MCP config fragment with env:

{
  "mcpServers": {
    "mtrkr": {
      "command": "npx",
      "args": ["mtrkr-mcp-server@latest"],
      "env": {
        "MTRKR_API_URL": "https://mtrkr.xyz"
      }
    }
  }
}

Tool index

Safety and limitations

Outputs are informational — risk scores, approvals, pricing, NFT/DeFi valuations, and decoded calldata depend on indexers, oracles, heuristics, and third-party feeds. Gaps are possible (non-standard contracts, delayed indexing, missing metadata, API outages).

Not investment advice. Treat token examples (honeypot, sell simulation) as risk signals, not buy/sell recommendations. Confirm critical findings with independent tools before acting.

Tools

Identity

Name resolution — Tool: mtrkr_resolve_name

Resolve a .mega name to a wallet address, or a wallet address to its primary .mega name. Uses on-chain name resolution via MTRKR.

Try asking:

• "What address is mirage.mega?"

• "Does 0x1234...abcd have a .mega name?"

• "Resolve mirage.mega"

Wallet portfolio

Token balances and pricing — Tool: mtrkr_wallet_tokens

Discover ERC-20 tokens held by a wallet with balances, USD pricing, and metadata. Uses hybrid discovery (token-list multicall plus transfer-log style scanning) so many tokens appear even when they are not on the default list; coverage still depends on RPC and indexer behavior.

Example shape (illustrative; fields may vary with API versions):

{
  "tokens": [
    {
      "address": "0x…",
      "symbol": "USDM",
      "name": "…",
      "balance": 100.0,
      "balanceUsd": 100.0,
      "priceUsd": 1.0
    }
  ],
  "totalUsd": 1234.56
}

Try asking:

• "What tokens does mirage.mega hold?"

• "Show me the token portfolio for 0x1234...abcd"

• "What's the total USD value of 0xdead...beef's tokens?"

• "Does this wallet hold any USDM?"

NFT holdings — Tool: mtrkr_wallet_nfts

NFTs on MegaETH (ERC-721, ERC-1155, ERC-404). Data is merged from chain indexers, marketplace feeds, badges, and enumeration. Returns up to 25 items, ordered using available floor-price metadata. Floor prices and attributes depend on marketplace/indexer availability and may be stale or absent.

Try asking:

• "What NFTs does mirage.mega own?"

• "Show me the NFT collection for 0x1234...abcd"

• "Does this wallet hold any Fluffle NFTs?"

• "What's the floor price of the NFTs in 0xdead...beef?"

Activity summary (quick stats) — Tool: mtrkr_wallet_quick_stats

Transaction counts (in/out/total) over a configurable range (1–365 days).

Try asking:

• "How active is 0x1234...abcd over the last 90 days?"

• "How many transactions has mirage.mega sent this week?"

• "Compare inbound vs outbound tx count for 0xdead...beef in the last 30 days"

DeFi positions

Primary AMM liquidity — Tool: mtrkr_lp_positions

Active LP positions for the supported AMM integration: pairs, ticks, liquidity, unclaimed fees, USD estimates. Closed zero-value positions are filtered out. Uses indexer-backed data with RPC fallback where applicable.

Try asking:

• "What LP positions does mirage.mega have in supported pools?"

• "How much liquidity does this wallet provide in integrated AMM positions?"

• "What fees has 0xdead...beef earned from LP positions?"

Concentrated liquidity — Tool: mtrkr_prism_positions

Concentrated-liquidity positions (NFT position-manager style). On-chain position readout with pairs, ticks, in-range status, liquidity, USD estimates.

Try asking:

• "What concentrated-liquidity positions does mirage.mega have?"

• "Show me CL positions for 0x1234...abcd"

• "Are any of 0xdead...beef's positions out of range?"

Security & analysis

Approval and operator scan — Tool: mtrkr_security_scan

Open ERC-20 allowances and NFT operator permissions with coarse risk labels and spender context. Uses historical indexing subject to indexer completeness, reorgs, non-standard patterns, and API availability — treat as a strong signal, not a mathematical guarantee.

Try asking:

• "Does mirage.mega have risky approvals?"

• "List all infinite approvals for 0x1234...abcd"

• "Are there any critical-risk token approvals on 0xdead...beef?"

• "How many unknown spenders does this wallet have approved?"

Address inspection — Tool: mtrkr_inspect_address

Inspect any MegaETH address: EOA vs contract, balance, labels, proxy hints, deployer/owner where available, verification, token interfaces, clone heuristics, and a qualitative risk summary.

Try asking:

• "Is 0x1234...abcd a wallet or a contract?"

• "Inspect 0xdead...beef — is it a proxy?"

• "Who deployed contract 0x5B42...d997?"

• "Is 0xabcd...1234 source-verified on the network explorer?"

• "What token standard does 0x021e...782B implement?"

• "Is this contract a fake clone?"

Token risk report — Tool: mtrkr_token_scan

Multi-domain ERC-20 risk heuristics (control, exit, liquidity, economics, integrity): numeric score, findings, sell-path simulation, admin proxies, concentration, curation flags, etc. Not exhaustive — unknown exploit classes and data gaps always remain.

Try asking:

• "Analyze contract risk for token 0x021e...782B"

• "Can I sell 0xabcd...1234? Check for honeypot"

• "What are the risk factors for 0xdead...beef?"

• "Who are the top holders of 0x021e...782B?"

• "Does 0xabcd...1234 have admin mint or pause powers?"

• "Is 0xdead...beef on the MegaETH curated token list?"

Wallet transaction analytics

Period parameters: Terminal campaign waves

Prefer whichWave for normal usage:

• whichWave: "current" — active Terminal wave

• whichWave: "last_completed" — most recently closed Terminal wave

Use waveId when you need a specific historical wave (1 … n from campaign config). wave is kept as a compatibility alias (GET: string tokens like current, last_completed, or digit strings that map to waveId; analyze/compare POST bodies may also forward string or number wave).

Tools: mtrkr_companion_get, mtrkr_companion_analyze, mtrkr_companion_compare.

Terms

• Decoded ledger: outbound transactions in the selected Terminal wave (startDate–endDate from campaign config), with method/value context from MTRKR’s decoder where available.

• Tracked apps: application labels when a call targets an address known to MTRKR’s app directory.

• Points alignment: when you pass points, the API may echo heuristic alignment — not an official points calculation.

Read analytics snapshot — Tool: mtrkr_companion_get

Try asking:

• "For mirage.mega last completed Terminal wave, summarize every outbound tx from the decoded ledger (swaps, bridges, others) and which map to tracked apps."

• "Wallet transaction analytics snapshot for 0x… for period id 3"

Analyze with optional points — Tool: mtrkr_companion_analyze

Returns the same family of analytics payload as the snapshot tool, plus optional points-alignment output when you supply points.

Try asking:

• "I logged about 1200 points in the last completed Terminal wave — analyze wallet 0x… with those numbers and see if on-chain activity is in the same ballpark"

Compare wallets — Tool: mtrkr_companion_compare

Try asking:

• "Compare mirage.mega, 0xAAA…, and 0xBBB… for the current Terminal wave — who has broader tracked-app coverage and more outbound volume?"

Utility

Transaction decode — Tool: mtrkr_decode_transaction

Human-readable calldata, transfers, events, and contract context when transaction data, receipts, and decoder inputs are available from upstream services.

Try asking:

• "What did transaction 0xf9b5...3e2a do?"

• "Decode 0xabcd...1234 — was it a swap?"

• "Show me the token transfers in tx 0xdead...beef"

• "What method was called in transaction 0x9876...5432?"

Spot ETH price — Tool: mtrkr_eth_price

ETH/USD from an on-chain oracle when available, otherwise a market reference; response includes source metadata when the API provides it. The tool returns a single ETH price, not an amount conversion — agents or clients should multiply by the desired ETH quantity after the call.

Try asking:

• "What's the current ETH price on MegaETH?"

• "ETH price?"

• "How much is 5 ETH worth in USD right now?"

Troubleshooting

• Tools do not appear: Restart the MCP host after editing config; validate JSON; run node --version (20+); try npx mtrkr-mcp-server@latest in a terminal to confirm the package resolves.

• Stale or unexpected version: Pin a semver: "args": ["mtrkr-mcp-server@1.1.1"] or check dist-tags: npm view mtrkr-mcp-server dist-tags.

• Rate limiting: MTRKR may return 429; wait briefly and retry (analytics compare is heavier).

• .mega fails to resolve: Confirm the name exists and MTRKR resolution succeeds for that label.

Changelog (high level)

• 1.2.x (beta → stable): Wallet transaction analytics

• 1.1.x: Earlier stable line on npm; see package versions.

License

MIT — see package.json.