Pricing — Pay Per Request
Every Kronos endpoint is priced per call or per timeframe. No subscriptions, no API keys, no monthly fees. Pay with USDC on Solana or Base via x402 micropayments.
Prices are in USD. The equivalent USDC amount is charged on-chain. No signup required — just send a payment in the HTTP header.
Paid endpoints
| Endpoint | Price | Payment |
|---|---|---|
GET /api/feeds/kronos/accuracy | $0.001/ call | After delivery |
GET /api/feeds/kronos/accuracy/candles | $0.005/ call | After delivery |
GET /api/feeds/kronos/risk/history | $0.02/ call | After delivery |
GET /api/feeds/kronos/predict/{symbolKey} | $0.01/ TF (cap $0.04) | Upfront |
GET /api/feeds/kronos/decisions | $0.001/ call | After delivery |
GET /api/feeds/kronos/forecast-evolution/{symbolKey} | $0.005/ call | After delivery |
GET /api/feeds/kronos/forecast-distribution/{symbolKey} | $0.01/ TF (cap $0.04) | Upfront |
GET /api/feeds/kronos/historical-analogs/{symbolKey} | $0.01/ call | After delivery |
GET /api/feeds/kronos/regime | $0.02/ call | After delivery |
GET /api/feeds/kronos/agent/track-record | $0.001/ call | After delivery |
GET /api/feeds/kronos/agent/votes | $0.003/ call | After delivery |
GET /api/feeds/kronos/agent/signals | $0.005/ call | After delivery |
GET /api/feeds/kronos/composite/{symbolKey} | $0.01/ call | After delivery |
GET /api/feeds/kronos/confluence/{symbolKey} | $0.01/ call | After delivery |
GET /api/feeds/kronos/benchmark | $0.02/ call | After delivery |
GET /api/feeds/kronos/digest/{symbolKey} | $0.03/ call | After delivery |
GET /api/feeds/kronos/market-brief/{symbolKey} | $0.05/ call | Upfront |
GET /api/feeds/similar-markets | $0.005/ call | Upfront |
GET /api/feeds/similar-markets/outcome-stats | $0.01/ call | Upfront |
GET /api/feeds/agent-intelligence/behavioral-correlations | $0.01/ call | Upfront |
GET /api/feeds/agent-intelligence/rationale-novelty | $0.01/ call | Upfront |
GET /api/feeds/kronos/market-context/{symbolKey} | $0.03/ call | After delivery |
GET /api/feeds/kronos/playground/{symbolKey} | $0.005/ TF | Upfront |
Free endpoints
| Endpoint | Price |
|---|---|
GET /api/feeds/kronos/catalog | Free |
GET /api/feeds/kronos/sample/btc_usdt | Free |
GET /api/feeds/kronos/accuracy-preview/{symbolKey} | Free |
GET /api/feeds/kronos/accuracy/candles-preview | Free |
GET /api/feeds/kronos/conviction-signals | Free |
GET /api/feeds/kronos/risk | Free |
GET /api/feeds/kronos/decision/{decisionId} | Free |
GET /api/feeds/kronos/composite-preview/{symbolKey} | Free |
GET /api/feeds/kronos/benchmark-preview | Free |
How does Kronos API pricing work?
Kronos charges per request, from $0.001 to $0.05. No subscriptions, no monthly fees. You pay with USDC on Solana or Base via x402 micropayments. Free endpoints include catalog, risk state, and accuracy preview. Volume discount: 5 timeframes for the price of 4.
- Per request — each API call is priced individually
- Upfront — payment settles before the handler runs (GPU endpoints like
/predict,/forecast-distribution,/playground, and semantic search endpoints) - After delivery — payment settles after the response is sent (cached and metadata endpoints like
/accuracy,/market-context,/decisions) - Capped —
/predictcaps at $0.04 for all 5 timeframes (20% off) - Refresh premium —
?refresh=truecosts 2x (forces GPU, bypasses cache)
Which payment networks are supported?
Solana
USDC SPL token. Fast settlement (~400ms). Low fees (~$0.001).
Base (Ethereum L2)
USDC ERC-20. Settlement in ~2 seconds. Low fees (~$0.01).
Frequently asked questions
How much does the Kronos crypto prediction API cost?
Prices range from $0.001 to $0.05 per request. The core /predict endpoint is $0.01 per timeframe, capped at $0.04 for all 5 (20% off). The AI digest is $0.03 and the market brief is $0.05. No subscriptions, no monthly fees.
Is there a free crypto prediction API?
Yes. Several endpoints are free: the catalog, risk state, accuracy preview, and benchmark preview. Paid endpoints start at $0.001 per call. There are no subscriptions — pay only for what you use via x402.
How do I pay for the crypto API?
Pay per request with USDC on Solana or Base via x402 micropayments. No API keys, no signup. Send a payment in the
X-PAYMENT header and the server verifies the on-chain transfer. Solana settlement is ~400ms, Base is ~2s.What is the difference between upfront and after-delivery payment?
Upfront payment settles before the handler runs (GPU endpoints like
/predict, /forecast-distribution, /playground). After-delivery payment settles only if the response is successfully sent (cached endpoints like /accuracy, /market-context, /decisions).Are there volume discounts for the crypto API?
Yes. The
/predict endpoint caps at $0.04 for all 5 timeframes (20% off vs. $0.05 individually). The ?refresh=true option costs 2x for fresh GPU inference. No tiered plans — the discount is automatic.