Pricing
SigmaGrid is designed for an agent-native, per-request consumption model rather than traditional subscriptions.
Model: Pay Per Query (x402 Protocol)
- All pricing is stablecoin denominated per request via x402 micropayments.
- No subscriptions, no minimums, no long-term lock-ins.
- Each request is authorised and paid atomically.
- You only pay for what you use. Stop anytime.
Pricing Tiers
| Tier | Price (USDC) | Endpoints |
|---|---|---|
| Free | 0 | /healthz, /v1/validate, /openapi.json, /x402-discovery, /.well-known/x402 |
| Free Teaser | 0 | /v1/signals/{ticker} — regime + event-risk labels only, no numeric data |
| Single Signal | 0.02 | /v1/fair-value, /v1/premium, /v1/spread, /v1/funding, /v1/regime-basic, /v1/regime, /v1/event-risk, /v1/events |
| Rich Data | 0.03 | /v1/historical/{ticker}, /v1/alpha-snapshot/{ticker}, /v1/drift/{ticker}, /v1/liquidity/{ticker} |
| Bulk / Batch | 0.05 | /v1/snapshot, /v1/alpha-snapshot/batch |
Prices come from the API's own spec at https://api.sigmagrid.app/openapi.json (x-payment-info), which is the authority if anything here disagrees.
SPY and QQQ are fair value only. Spread, funding, premium and liquidity answer HTTP 400 for them before asking for payment, as does any ticker we don't cover, so you are never charged for a request that can't return data.
Billing mechanics
- Your agent calls a SigmaGrid endpoint (e.g.
/v1/fair-value/SPY). - If the endpoint is paid, it returns HTTP 402 (Payment Required) with x402 metadata.
- Your agent signs and submits a USDC micropayment on Base L2 via x402.
- The response is returned once payment is confirmed at the protocol level.
There are no traditional API keys. Access is driven by verifiable, per-request payments, which:
- simplifies integration for on-chain agents,
- avoids long-lived secrets,
- and makes cost per decision explicit.
Payment Details
- Network: Base L2 (Chain ID: 8453)
- Currency: USDC
- USDC contract:
0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 - Protocol: x402
Free Discovery
Use /v1/signals/{ticker} as a free entry point — it returns regime and event-risk labels, plus a gated_endpoints map showing where to get numeric data. No payment required.
Disclaimer
Data and model outputs are for information only and are not investment advice. They can be wrong, late or unavailable. Each paid call is charged when it is served, whatever the result, with no warranty of accuracy, completeness or uptime. Trading perpetual futures carries a high risk of loss.