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:
{
"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
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
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