# Services from api.bullflow.io on Zero

> api.bullflow.io serves 11 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.bullflow.io
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.bullflow.io/health.json

## Services

- [Bullflow Unusual Options Flow - Options Profile](https://www.zero.xyz/c/bullflow-unusual-options-flow-options-profile-828d661c/llms.txt): $0.01/call via x402. Returns a real-time options activity profile for a given ticker, including volume, premium, execution, concentration, and unusual contract data.
- [Bullflow Historical Options Flow](https://www.zero.xyz/c/bullflow-historical-options-flow-a32ef678/llms.txt): $0.01/call via x402. Retrieves paginated historical unusual options flow and dark pool trade records filtered by ticker, date range, trade type, premium, and other criteria
- [Bullflow GEX Alerts](https://www.zero.xyz/c/bullflow-gex-alerts-87636f43/llms.txt): $0.01/call via x402. Retrieves gamma exposure (GEX) alerts for a given ticker, including node proximity, largest node moved higher, and largest node moved lower events over a specified date range.
- [Bullflow Net Vex (Vanna Exposure) by Strike](https://www.zero.xyz/c/bullflow-net-vex-vanna-exposure-by-strike-028d10a1/llms.txt): $0.01/call via x402. Returns real-time vex (vanna exposure) and net exposure data broken down by strike and expiration for a given ticker symbol.
- [Bullflow Dark Pool Trades](https://www.zero.xyz/c/bullflow-dark-pool-trades-73ff1d08/llms.txt): $0.01/call via x402. Retrieves paginated dark pool (off-exchange) trade records for a given ticker and date range, filtered by minimum notional value.
- [Bullflow End-of-Day GEX (Gamma Exposure) Data](https://www.zero.xyz/c/bullflow-end-of-day-gex-gamma-exposure-data-d316954a/llms.txt): $0.01/call via x402. Returns end-of-day gamma exposure (GEX) by strike and expiration for a given ticker and trading date, using closing open interest data.
- [Bullflow Options Top Tickers](https://www.zero.xyz/c/bullflow-options-top-tickers-0e7bfa99/llms.txt): $0.01/call via x402. Returns the top stock tickers ranked by unusual options flow activity (volume, premium, or net premium) for a given trading date or date range.
- [Bullflow Net Premium Series](https://www.zero.xyz/c/bullflow-net-premium-series-8e0e0226/llms.txt): $0.01/call via x402. Returns a time-series of cumulative net call and put premium for a given ticker over a specified period, enabling options flow sentiment analysis.
- [Bullflow Peak Return Calculator](https://www.zero.xyz/c/bullflow-peak-return-calculator-d2219cc4/llms.txt): $0.01/call via x402. Returns the peak (highest) price and maximum percent return achieved by an options contract since a specified entry trade timestamp and price.
- [Bullflow Net GEX (Gamma Exposure) by Strike](https://www.zero.xyz/c/bullflow-net-gex-gamma-exposure-by-strike-6db877c0/llms.txt): $0.01/call via x402. Returns net gamma exposure (GEX) broken down by strike price and expiration for a given ticker, using open interest or volume as the contract count basis.
- [Bullflow Last Trade Price](https://www.zero.xyz/c/bullflow-last-trade-price-dd43459c/llms.txt): $0.01/call via x402. Returns the most recent trade price (and timestamp) for a given stock, ETF, or index ticker symbol.

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)