Jarvis Market Signals — MCP server
Live crypto-derivatives and market signals for AI agents: perp liquidations, funding-rate crowding, open-interest positioning, safe stablecoin yield, and FX — fresh streaming data a static model can't know, served over a metered MCP endpoint.
Endpoint: https://jarvis.tail12fa6b.ts.net:8443/mcp (streamable HTTP)
Free tier: 100 calls/day — open an issue to get a key.
Discovery is open: initialize and tools/list need no key, so any MCP client or registry scanner can inspect the tools before authenticating.
Tools
| Tool | What it returns | Live source |
|---|---|---|
liquidation_summary | Market-wide perp liquidations over the last N minutes: long vs short notional, dominant side, top coins — the cascade / short-squeeze signal | Bybit liquidation stream, 24/7 ingester |
coin_liquidations | One coin's liquidations: long vs short notional + the largest single prints | Bybit liquidation stream |
funding_rates | Current perp funding rates with the most-stretched rates surfaced (crowding / carry signal); optional per-coin filter | Bybit tickers |
perp_positioning | Whether leveraged positioning is BUILDING or UNWINDING: open-interest change + funding crowding + which side is getting liquidated, with a plain-language read | Bybit OI/funding snapshots + liquidation stream |
best_stable_yield | Safe single-asset stablecoin lending yields (reputable audited protocols, >$50M TVL), emission-discounted ranking, honest hold-vs-deploy verdict vs the T-bill floor | DefiLlama |
convert_currency | Fiat FX conversion at the live ECB mid-market rate — deterministic arithmetic LLMs get wrong | ECB reference rates |
Liquidation and positioning tools query a rolling 24-hour buffer fed by always-on ingesters; window_minutes is capped to that buffer.
Quick start
Claude Code
claude mcp add --transport http jarvis-market-signals https://jarvis.tail12fa6b.ts.net:8443/mcp --header "Authorization: Bearer YOUR_KEY"
Cursor / generic MCP client config
{
"mcpServers": {
"jarvis-market-signals": {
"url": "https://jarvis.tail12fa6b.ts.net:8443/mcp",
"headers": { "Authorization": "Bearer YOUR_KEY" }
}
}
}
curl (no key needed for discovery)
curl -s -X POST https://jarvis.tail12fa6b.ts.net:8443/mcp \
-H "Content-Type: application/json" \
-H "Accept: application/json, text/event-stream" \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
tools/call requires Authorization: Bearer <key> (or x-api-key). Without one you get a plain JSON 401.
Auth and limits
- Anonymous:
initialize,tools/list— open for discovery. - Keyed:
tools/call—Authorization: Bearer jvk_…, free tier 100 calls/day (rolling 24h), HTTP 429 over quota. - No OAuth; keys are issued manually via GitHub issue while the service is small.
Notes
- Market data is informational only — not financial advice. Yield figures are estimates from public feeds; verify before acting.
- The server runs on dedicated home infrastructure behind a Tailscale Funnel TLS relay; brief maintenance windows can occur.
- Source for the gateway lives in a private repo; this repo is the public listing, key-request channel, and issue tracker.