Kurage Crypto Brain vendors the LLM intelligence of five open-source crypto trading projects — ai-hedge-fund-crypto, CryptoTradingAgents, Vibe-Trading, LLM_trader, HELM Agents — pinned to exact commits with full attribution, and runs them on DeepSeek V4 Flash (local Gemma 4 12B is also selectable). You pay per call via x402 (USDC on Base, or JPYC on Polygon): no signup, no subscription — the 402 challenge is the onboarding. Judgment only: the API holds no exchange credentials and cannot place orders.
The same jellyfish AI VTuber behind kfreqai and kfxai. This is her crypto brain, for rent — the sibling of Kurage FX Brain.
Pinned commits, permissive licenses only, upstream attribution in every response. No license = not vendored (we checked).
The exact generate_trading_decision() portfolio-manager prompt, unpatched — synthesizes
supplied analyst signals into a position proposal. Single call.
Bull researcher → bear researcher → research-manager debate chain, on real evidence you supply. Three sequential LLM calls, priced accordingly at $0.003. Everything else is $0.001.
The crypto_trading_desk.yaml preset: funding/basis, liquidation, and flow specialist
roles chained into a desk-risk-manager synthesis. Multi-agent, priced at $0.003.
Fresh-analysis, prompt-version, and decision-gating rules from the upstream prompt builder — trend, momentum, funding, confluence, risk/reward in one structured call.
Four analyst prompts (market, sentiment, news, fundamentals) chained into a portfolio-manager consensus rating. Five sequential LLM calls, priced at $0.003.
Not vendored — kcbrain originals: single-call technical / on-chain / sentiment / full-perspective analysis, bull-bear debate mapping, trade / risk / portfolio / review judgments, plus multi-pair opportunity and flow ranking, anomaly detection, liquidation-cascade risk, and a single-pair evidence-bounded signal. Uses only the evidence you supply.
No exchange credentials, no order sizes, no execution — ever. Visible errors instead of silent
fallbacks. Your trading body (like the open-source kfreqai, or NOFX via the OpenAI-compatible
/v1/chat/completions integration) keeps the final risk gates.
We built verification in, because "trust me" is not a sales pitch.
The Crypto Intelligence Workbench is a live console against the same API: pick an endpoint, load a BTC/USDT preset or paste your own evidence JSON, and read the structured judgment — with a health indicator showing the DeepSeek backend is actually up. Judge the quality yourself before spending a cent.
Every paid endpoint answers unpaid requests with a signed 402 challenge — so you can confirm the exact price, wallet, and network before any money moves:
curl -X POST https://bittensorman.xyz/kcbrain/decide/trade
# → HTTP 402: {"maxAmountRequired":"1000", "payTo":"0x444f…", "network":"base", …}
The full catalog is machine-readable at
https://bittensorman.xyz/.well-known/x402.json — 24 paths under /kcbrain/.
JPYC rail: https://exbridge.ddns.net:18331/kcbrain/… (0.15 JPYC per call, 0.45 JPYC for
the chained multi-agent skills). Also on
Bankr
(single-call skills only, flat $0.001).
Per call, settled on-chain. No accounts, no minimums.
| Skill group | Examples | USDC (Base) | JPYC (Polygon) |
|---|---|---|---|
| Core crypto judgment (9) | technical / onchain / sentiment / debate / decide / risk / portfolio / review / full | $0.001 | 0.15 JPYC |
| Market intelligence (5) | opportunity/flow ranking, anomaly, liquidation-risk, pair signal | $0.001 | 0.15 JPYC |
| Single-call vendor (2) | ai-hedge-fund-crypto/portfolio, llm-trader/analyze | $0.001 | 0.15 JPYC |
| Multi-agent chained vendor (3) | crypto-trading-agents/debate, vibe-trading/research, helm-agents/consensus — 3-5 sequential calls | $0.003 | 0.45 JPYC |
FastAPI · DeepSeek V4 Flash (Gemma 4 12B via Ollama also selectable) · vendored OSS at pinned commits · x402 (USDC on Base / JPYC on Polygon) · Bankr · Coinbase CDP Bazaar