{"uid":"cap_u8lSF-vkWSDvKyZvrshDS","slug":"gexlog-historical-spx-options-market-briefing-40c3cafc","name":"GEXLOG Historical SPX Options Market Briefing","description":"A live fintech experiment in AI agent payments. WebMCP structured tools and x402 micropayments gate premium financial data. Documentation for agents and developers.","url":"https://agent.gexlog.com/agent/historical","method":"GET","headers":{},"bodySchema":{"type":"object","required":["date"],"properties":{"date":{"type":"string","description":"Target date in YYYY-MM-DD format. Use /agent/dates to discover valid dates."},"report_type":{"enum":["morning","evening","weekend","both"],"type":"string","description":"Which report to return. 'both' (default) returns morning, evening, and weekend keyed by type."}}},"responseSchema":{"type":"object","properties":{"date":{"type":"string","format":"date"},"evening":{"type":"object","properties":{"levels":{"type":"object","properties":{"current":{"type":"number","description":"SPX spot price at generation"},"gex_flip":{"type":["number","null"],"description":"GEX flip level, null if no zero crossing in observable chain"},"put_wall":{"type":"number"},"call_wall":{"type":"number"},"max_gamma":{"type":"number"}},"description":"Key price levels from options positioning"},"market":{"type":"object","properties":{"es":{"type":"number"},"nq":{"type":"number"},"spx":{"type":"number"},"vix":{"type":"number"}},"description":"Current market data snapshot"},"forecast":{"type":"object","properties":{"factors":{"type":"object","properties":{"gamma":{"type":"object","properties":{"regime":{"type":"string","description":"Gamma regime classification"},"total_gex":{"type":"number"}}}}}},"description":"Market forecast including gamma regime and expected move"},"guidance":{"type":"object","properties":{"signal":{"enum":["GO","CAUTION","WAIT"],"type":"string","description":"Primary trade signal"},"confidence":{"type":"number"}},"description":"Trade guidance signals"},"generated_at":{"type":"string","format":"date-time","description":"When this briefing was generated"},"ai_narrative_primary":{"type":"string","description":"AI-generated market narrative (Claude)"},"ai_narrative_secondary":{"type":"string","description":"AI-generated market narrative (Gemini)"}},"description":"Full SPX options market briefing with gamma regime, levels, positioning, and AI narrative."},"morning":{"type":"object","properties":{"levels":{"type":"object","properties":{"current":{"type":"number","description":"SPX spot price at generation"},"gex_flip":{"type":["number","null"],"description":"GEX flip level, null if no zero crossing in observable chain"},"put_wall":{"type":"number"},"call_wall":{"type":"number"},"max_gamma":{"type":"number"}},"description":"Key price levels from options positioning"},"market":{"type":"object","properties":{"es":{"type":"number"},"nq":{"type":"number"},"spx":{"type":"number"},"vix":{"type":"number"}},"description":"Current market data snapshot"},"forecast":{"type":"object","properties":{"factors":{"type":"object","properties":{"gamma":{"type":"object","properties":{"regime":{"type":"string","description":"Gamma regime classification"},"total_gex":{"type":"number"}}}}}},"description":"Market forecast including gamma regime and expected move"},"guidance":{"type":"object","properties":{"signal":{"enum":["GO","CAUTION","WAIT"],"type":"string","description":"Primary trade signal"},"confidence":{"type":"number"}},"description":"Trade guidance signals"},"generated_at":{"type":"string","format":"date-time","description":"When this briefing was generated"},"ai_narrative_primary":{"type":"string","description":"AI-generated market narrative (Claude)"},"ai_narrative_secondary":{"type":"string","description":"AI-generated market narrative (Gemini)"}},"description":"Full SPX options market briefing with gamma regime, levels, positioning, and AI narrative."},"weekend":{"type":"object","properties":{"levels":{"type":"object","properties":{"current":{"type":"number","description":"SPX spot price at generation"},"gex_flip":{"type":["number","null"],"description":"GEX flip level, null if no zero crossing in observable chain"},"put_wall":{"type":"number"},"call_wall":{"type":"number"},"max_gamma":{"type":"number"}},"description":"Key price levels from options positioning"},"market":{"type":"object","properties":{"es":{"type":"number"},"nq":{"type":"number"},"spx":{"type":"number"},"vix":{"type":"number"}},"description":"Current market data snapshot"},"forecast":{"type":"object","properties":{"factors":{"type":"object","properties":{"gamma":{"type":"object","properties":{"regime":{"type":"string","description":"Gamma regime classification"},"total_gex":{"type":"number"}}}}}},"description":"Market forecast including gamma regime and expected move"},"guidance":{"type":"object","properties":{"signal":{"enum":["GO","CAUTION","WAIT"],"type":"string","description":"Primary trade signal"},"confidence":{"type":"number"}},"description":"Trade guidance signals"},"generated_at":{"type":"string","format":"date-time","description":"When this briefing was generated"},"ai_narrative_primary":{"type":"string","description":"AI-generated market narrative (Claude)"},"ai_narrative_secondary":{"type":"string","description":"AI-generated market narrative (Gemini)"}},"description":"Full SPX options market briefing with gamma regime, levels, positioning, and AI narrative."}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IUMRId-cdNGVNz9k6K60o","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns historical SPX options market briefings including gamma exposure levels, trade signals, AI narratives, and key price levels for a specified date","exampleAgentPrompt":"Pull the full SPX options briefing for January 15, 2025 — both morning and evening reports — including the gamma regime, GEX flip level, put wall, call wall, and the GO/CAUTION/WAIT trade signal.","exampleUseCases":[{"title":"Post-mortem gamma regime review","prompt":"Can you pull the historical SPX options briefing for March 5, 2025? I want to see the evening report — specifically the gamma regime, the GEX flip level, and what trade signal it gave that day."},{"title":"AI narrative comparison for a volatile day","prompt":"What did the GEXLOG AI narratives say about SPX on February 24, 2025? Get me both the Claude and Gemini market narratives from the evening briefing so I can compare them."},{"title":"Backtesting signal accuracy","prompt":"I'm backtesting trade signals — can you get me both the morning and evening SPX market briefings for December 18, 2024, including the GO/CAUTION/WAIT signal and its confidence score?"}],"resultDescription":"Returns a structured JSON object keyed by report type (morning, evening, or both), each containing: key SPX price levels (spot, GEX flip, put wall, call wall, max gamma), a market snapshot (SPX, ES, NQ, VIX), gamma regime classification and total GEX, a primary trade signal (GO/CAUTION/WAIT) with confidence score, timestamp of generation, and two AI-generated market narratives (one from Claude, one from Gemini).","failureModes":["Invalid or unsupported date format (not YYYY-MM-DD) returns a validation error","Date outside available historical range returns 404 or empty result — use /agent/dates to discover valid dates","Invalid report_type value returns an error","Payment not processed (x402 micropayment failure) returns 402 Payment Required","Network or server errors return 5xx responses"],"whenToPreferThis":"Choose this endpoint when you need structured historical SPX options market data — including gamma exposure levels, AI-generated narratives, and directional trade signals — for a specific past date. It is ideal for backtesting, post-mortem analysis, or reviewing past market conditions. Prefer this over real-time data sources when you need reproducible, time-stamped historical snapshots with both quantitative gamma metrics and qualitative AI narratives.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:38:40.701Z","isFirstParty":false}