Five open-source trading intelligences. One metered brain.

TradingAgents

The full multi-agent graph, unpatched: analyst reports → bull/bear debate → trader plan → risk debate → final decision, on real market data. Measured ~5.5 minutes of compute per run — priced accordingly at $0.50. Everything else is $0.05.

FinGPT

Seven financial NLP task contracts: sentiment, headline classification, relation extraction, NER, Q&A, the Forecaster, and report analysis — each returning strict JSON.

ai-hedge-fund

13 investor personas (Buffett, Munger, Burry…) via the upstream prompt builders with only the LLM transport swapped. Honest by design: Buffett declines FX as outside his circle of competence. Plus news sentiment and portfolio synthesis.

FinRobot

The Market Forecaster workflow (2-4 positive developments and concerns, next-week move with a % range) plus 8 analyst-report instructions — income statement, balance sheet, cash flow, segments, risk, competitors, highlights, company description — extracted from the pinned source at runtime.

FinMem

Layered-memory decisions: pass short/mid/long/reflection memories and the agent decides — switching between a risk-seeking and risk-averse character based on your cumulative return, exactly as the paper designed. A reflection endpoint turns outcomes into storable lessons.

Market intelligence

Not vendored — kfxbrain originals: rank up to 40 pairs in one call (risk-adjusted opportunity or currency flow), cross-pair anomaly detection, margin-call / stop-out risk ranking, and a single-pair evidence-bounded signal. Uses only the evidence you supply.

The brain can't touch money

No broker credentials, no order sizes, no execution — ever. Visible errors instead of silent fallbacks. Your trading body (like the open-source kfxai) keeps the final risk gates.

Coinbase CDP x402

Direct USDC payments on Base expose 36 paths under /fxbrain/. Standard skills cost $0.05; the complete TradingAgents multi-agent graph costs $0.50. Paid x402 calls use DeepSeek, while local self-hosting can use Gemma.

Open live discovery →

Bankr x402

A wallet-native x402 listing of the core FX judgment skills for AI agents, paid in USDC on Base at $0.05 per call (the full TradingAgents graph is sold via the direct rail).

Open Bankr →

PayAPI Market

The same x402 provider (bittensorman, wallet 0x444fad…) is live and verified on PayAPI Market. Agents that discover the provider there reach the identical hosted brain through the CDP gateway.

Open PayAPI provider →

Agent402

Listed as an x402 agent on Agent402 under the same provider and Base wallet, so autonomous agents that shop on Agent402 can pay for and call the hosted skills.

Open Agent402 agent →

JPYC rail

A yen-stablecoin settled gateway. Standard skills are billed at 7.5 JPYC and the complete TradingAgents graph at 75 JPYC, at exbridge.ddns.net:18327/fxbrain/….

Virtuals Agent Commerce Protocol

Listed on Virtuals' ACP as part of the "Kurage AI Project", so agents can buy the FX judgment skills agent-to-agent through USDC escrow.

Card billing (a separate rail from x402)

Kurage FX Brain is live on RapidAPI. No crypto wallet required — use the same FX judgment skills with pay-as-you-go card billing via an API key.

Endpoint: kurage-fx-brain.p.rapidapi.com (auth with the X-RapidAPI-Key header). Open on RapidAPI →

Self-host, or run behind the kfxai body

kfxai can call this API for market and risk judgment, but broker credentials, position sizing and execution remain in the OSS trading body. The browser Workbench tests the production API without requiring an x402 payment.

See the kfxai trading body →