# x402 Payment Instructions (required when paid API launches in Q1 2026)
# - Paid endpoints return HTTP 402 "Payment Required" when access needs authorization.
# - Agents must implement the x402 protocol: parse the 402 response metadata (price, recipient, chain, etc.), sign & submit a stablecoin micropayment tx (USDC on Base recommended for low fees), then retry the original request with payment proof attached.
# - Use official x402 libraries where available (e.g., Coinbase x402 Go/Python/JS packages) or a minimal custom fetch-based wrapper.
# - Free connectivity check (no payment): GET https://api.sigmagrid.app/health — call before paid requests.
# - No traditional API keys or subscriptions — payments are per-request and atomic.

# SigmaGrid llms.txt
# Public docs live now — Paid API launching Q1 2026
# Base docs: https://sigmagrid.app/docs
# Base API URL (when live): https://api.sigmagrid.app

[product]
name = "SigmaGrid"
description = "Institutional fair value for crypto perpetual markets. Traditional equity markets close at 4pm. Crypto synthetic equity perps trade 24/7. Get institutional-grade fair value when Bloomberg terminals go dark."
status = "Public docs live now — Paid API launching Q1 2026"

[api]
base_url = "https://api.sigmagrid.app"
schema = "https"
health_endpoint = "/health"

[fields.core]
timestamp = "ISO 8601 UTC timestamp"
ticker = "Underlying symbol"
fair_value = "Institutional fair value"
vol_forecast_1h = "1h vol forecast"
vol_forecast_4h = "4h vol forecast"
regime = "trend / chop / HVOL / LVOL"
drift_1h = "1h drift"
drift_overnight = "Overnight drift"
event_next = "Next macro event"
event_impact = "Impact severity"
event_bias = "risk-on / risk-off / neutral"

[fields.optional_macro]
beta_macro = "Risk appetite sensitivity"
beta_yield = "Yield sensitivity"
beta_dollar = "USD sensitivity"
beta_vol_index = "Volatility index sensitivity"