lithium-vault-mcp

An MCP server that gives your AI agent primary-source lithium / battery-metals mining data — production, AISC, reserves, ownership, royalties, offtakes, and corporate financials for 40 producers and 49 mines, every figure extracted from SEC / ASX / TSX / SEDAR / cninfo filings and FX-normalized to USD.

Data comes from the Lithium Research Vault (listed on agentic.market). Each tool call is paid per request in USDC over x402 from your own wallet — no subscription, no API key on our side.

Tools

Tool	Price	Returns
`lithium_vault_summary`	$0.02	One-row headline: latest production, volume-weighted AISC, realized price, cash/debt/EBITDA/FCF, reserves, top holder, source filing
`lithium_vault_raw`	$0.05	Full structured rows: every period of production, AISC, reserves, ownership, royalties, offtakes, financials
`lithium_vault_comparables`	$0.20	Cost-curve percentile + nearest peers, resource-size rank, and balance-sheet survival rank vs the whole tracked universe — every figure cited

Each takes entity (a ticker like ALB, SQM, PILBF, ATUSF, or a mine name like Greenbushes, Pilgangoora, Grota do Cirilo) and level (company or mine). If the entity isn't in the vault you get a 400 and no charge.

Prerequisites

A funded Coinbase CDP wallet with USDC on Base. You bring your own wallet; the server pays the per-call fee from it (CDP covers gas). Get CDP API credentials at portal.cdp.coinbase.com.

Install & configure

Claude Desktop

Add to claude_desktop_config.json:

config.json

{
  "mcpServers": {
    "lithium-vault": {
      "command": "npx",
      "args": ["-y", "lithium-vault-mcp"],
      "env": {
        "CDP_API_KEY_ID": "your-cdp-api-key-id",
        "CDP_API_KEY_SECRET": "your-cdp-api-key-secret",
        "CDP_WALLET_SECRET": "your-cdp-wallet-secret",
        "X402_MAX_PRICE": "0.25"
      }
    }
  }
}

Claude Code

Terminal

claude mcp add lithium-vault \
  --env CDP_API_KEY_ID=... \
  --env CDP_API_KEY_SECRET=... \
  --env CDP_WALLET_SECRET=... \
  --env X402_MAX_PRICE=0.25 \
  -- npx -y lithium-vault-mcp

Configuration

Env var	Default	Purpose
`CDP_API_KEY_ID` / `CDP_API_KEY_SECRET` / `CDP_WALLET_SECRET`	—	Required. Your CDP wallet — the wallet that pays.
`CDP_ACCOUNT_NAME`	`lithium-vault-mcp`	Named CDP account to pay from (auto-created).
`X402_MAX_PRICE`	`0.25`	Safety ceiling. The server checks the advertised price before paying and refuses any call above this, so a misconfiguration can never overpay.
`VAULT_BASE_URL`	`https://clink-lithium-vault.fly.dev`	Override only for testing.

How it works

Code

your agent → MCP tool call → this server → [x402 402 → pay USDC from your wallet → retry] → vault → data

The server reads the endpoint's advertised price first and enforces X402_MAX_PRICE before authorizing any payment. You only ever pay the fixed per-tier price ($0.02 / $0.05 / $0.20).

License

MIT