# Services from api.sigmagrid.app on Zero

> api.sigmagrid.app serves 14 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.sigmagrid.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.sigmagrid.app/health.json

## Services

- [SigmaGrid Registry – Market Regime Signal](https://www.zero.xyz/c/sigmagrid-registry-market-regime-signal-1022a780/llms.txt): $0.02/call via x402. Returns a real-time quantitative market regime classification signal for a given ticker symbol, paid per-call via x402.
- [SigmaGrid Fair Value Signal](https://www.zero.xyz/c/sigmagrid-fair-value-signal-6c9877d3/llms.txt): $0.02/call via x402. Returns a real-time quantitative fair-value signal for a given stock ticker, gated via x402 micropayment.
- [SigmaGrid Event Risk Signal](https://www.zero.xyz/c/sigmagrid-event-risk-signal-2caaecc6/llms.txt): $0.02/call via x402. Returns real-time event-driven risk signals for a given stock ticker to support algorithmic trading decisions.
- [SigmaGrid Registry - Funding Rate Signal](https://www.zero.xyz/c/sigmagrid-registry-funding-rate-signal-d6ff0eb0/llms.txt): $0.02/call via x402. Returns real-time quantitative funding rate signals for a given ticker, used in algorithmic trading strategies, gated via x402 micropayment.
- [SigmaGrid Alpha Snapshot](https://www.zero.xyz/c/sigmagrid-alpha-snapshot-06dfd31c/llms.txt): $0.03/call via x402. Returns real-time quantitative alpha signals for a given ticker symbol, gated via the x402 micropayment protocol at $0.03 USDC per call.
- [SigmaGrid Registry - Premium Quantitative Signals](https://www.zero.xyz/c/sigmagrid-registry-premium-quantitative-signals-f94eaa02/llms.txt): $0.02/call via x402. Returns real-time quantitative trading signals for a given ticker symbol, gated via x402 micropayment
- [SigmaGrid Registry – Drift Signal](https://www.zero.xyz/c/sigmagrid-registry-drift-signal-de72850a/llms.txt): $0.03/call via x402. Returns real-time quantitative drift signals for a given stock ticker, used in algorithmic trading strategies, gated via x402 micropayment.
- [SigmaGrid Registry – Spread Signal](https://www.zero.xyz/c/sigmagrid-registry-spread-signal-30f30628/llms.txt): $0.02/call via x402. Returns a real-time quantitative spread signal for a given ticker, gated via the x402 micropayment protocol for algorithmic trading use.
- [SigmaGrid Registry - Liquidity Signal](https://www.zero.xyz/c/sigmagrid-registry-liquidity-signal-7f18d10d/llms.txt): $0.03/call via x402. Returns real-time quantitative liquidity signals for a given ticker symbol, accessible via x402 micropayment.
- [SigmaGrid Registry – Ticker Event Signals](https://www.zero.xyz/c/sigmagrid-registry-ticker-event-signals-5d88be03/llms.txt): $0.02/call via x402. Fetches real-time quantitative trading signals for a given ticker symbol via a pay-per-call x402 payment-gated POST endpoint.
- [SigmaGrid Regime Basic Signal](https://www.zero.xyz/c/sigmagrid-regime-basic-signal-84e98e33/llms.txt): $0.02/call via x402. Returns a basic quantitative market regime signal for a given ticker symbol, gated via x402 micropayment.
- [SigmaGrid Registry - Historical Ticker Signals](https://www.zero.xyz/c/sigmagrid-registry-historical-ticker-signals-06673ec3/llms.txt): $0.03/call via x402. Returns historical quantitative trading signals for a specified ticker symbol, gated via x402 micropayment.
- [SigmaGrid Registry Snapshot](https://www.zero.xyz/c/sigmagrid-registry-snapshot-a82537b0/llms.txt): $0.05/call via x402. Returns a real-time snapshot of quantitative trading signals for algorithmic decision-making, gated via the x402 micropayment protocol.
- [SigmaGrid Registry Alpha Snapshot Batch](https://www.zero.xyz/c/sigmagrid-registry-alpha-snapshot-batch-31a5330e/llms.txt): $0.05/call via x402. Returns a batch of real-time quantitative alpha signals for algorithmic trading strategies, delivered via x402 micropayment-gated API.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)