[{"slug":"ZV-2026-1933","server_name":"api.zdte.ai","severity":"breaking","title":"api.zdte.ai: Tool unsubscribe was renamed to unsubscribe_event.","summary":"[breaking] Tool unsubscribe was renamed to unsubscribe_event. [risky] Description of create_guest_key changed (68% word delta). [risky] Description of get_day changed (59% word delta). [safe] Description of get_market_structure changed (25% word delta). [risky] Description of get_regime changed (58% word delta). [risky] Description of get_regime_segments changed (79% word delta). [risky] Description of unsubscribe changed (45% word delta). [safe] Resource zdte://field-guide was added. [safe] Prompt compare_regime_timeline was added. [safe] Prompt explain_gamma_flip_and_walls was added. [safe] Prompt get_started was added. [safe] Prompt summarize_market_structure was added.","changes":[{"kind":"tool_renamed","tool":"unsubscribe","after":"unsubscribe_event","before":"unsubscribe","detail":"Tool `unsubscribe` was renamed to `unsubscribe_event`.","severity":"breaking"},{"kind":"description_changed","tool":"create_guest_key","after":"Create a zero-credit API key, returned once, and save it securely. When the response says connection_authenticated, this MCP session is already using the key: continue with create_credit_checkout. Otherwise, and for new connections, configure HTTP Authorization: Bearer and reconnect. No arguments. OAuth-capable clients can skip this: they are asked to Connect automatically the first time an account or paid tool is called, with no website account needed.","before":"Create a zero-credit API key, returned once. Save it securely, configure HTTP Authorization: Bearer, and reconnect. Does not authenticate this connection. No arguments.","detail":"Description of `create_guest_key` changed (68% word delta).","severity":"risky","descriptionDelta":0.6774193548387097},{"kind":"description_changed","tool":"get_day","after":"Use this when you need the full market-structure history of one past trading day: the intraday timeline (walls, gamma flip, net GEX, regime, spot) plus a day summary. If you only need when the regime changed that day, get_regime_segments is the compact version. One replay date (YYYY-MM-DD) per call. Data only -- not investment advice or a trade recommendation.","before":"Per-day SPX market-structure timeline + summary for one replay date (YYYY-MM-DD). Data only -- not investment advice or a trade recommendation.","detail":"Description of `get_day` changed (59% word delta).","severity":"risky","descriptionDelta":0.5882352941176471},{"kind":"description_changed","tool":"get_market_structure","after":"Use this when you need the full current SPX dealer market structure: walls, gamma flip, net GEX and the strike-level detail below. If you only need the regime label and its confidence, get_regime is smaller and cheaper. Current computed SPX dealer market structure (walls, gamma flip, net GEX, regime), recomputed ~every 10s during market hours: scored pressure-point strike ladder, implied 50%/80% forecast-band ranges, strike activity (volume/OI), and VIX term-structure context. Also the 0DTE ATM-straddle expected move and its session fence, max pain, the running session open/high/low with the prior close and gap, order-flow measurements, a top-10 net-GEX strike profile, and chain vanna/charm totals with a top-10 strike ladder. Realtime requires a funded API key, no website account needed: call create_guest_key, then create_credit_checkout, then get_credit_balance (account holders can also buy at https://zdte.ai/agent/credits); without a key this serves a delayed headline preview only (regime, spot, walls, gamma flip, net GEX). Data only -- not investment advice or a trade recommendation.","before":"Current computed SPX dealer market structure (walls, gamma flip, net GEX, regime), recomputed ~every 10s during market hours: scored pressure-point strike ladder, implied 50%/80% forecast-band ranges, strike activity (volume/OI), and VIX term-structure context. Also the 0DTE ATM-straddle expected move and its session fence, max pain, the running session open/high/low with the prior close and gap, order-flow measurements, a top-10 net-GEX strike profile, and chain vanna/charm totals with a top-10 strike ladder. Realtime requires a funded X-API-Key (create one at https://zdte.ai/agent/credits); without a key this serves a delayed headline preview only (regime, spot, walls, gamma flip, net GEX). Data only -- not investment advice or a trade recommendation.","detail":"Description of `get_market_structure` changed (25% word delta).","severity":"safe","descriptionDelta":0.24590163934426235},{"kind":"description_changed","tool":"get_regime","after":"Use this when you only need the current SPX dealer regime label and its confidence, for example to check whether conditions have changed. For walls, gamma flip, net GEX and strike detail, use get_market_structure instead. Realtime with an API key; without a key this serves a delayed preview.","before":"Current SPX dealer regime label + confidence only. Realtime with an X-API-Key; without a key this serves a delayed preview.","detail":"Description of `get_regime` changed (58% word delta).","severity":"risky","descriptionDelta":0.5813953488372092},{"kind":"description_changed","tool":"get_regime_segments","after":"Use this when you only need how the dealer regime changed during one past trading day: a compressed list of regime segments with their start and end times. For the full intraday structure (walls, gamma flip, net GEX, spot) use get_day instead. One replay date (YYYY-MM-DD) per call.","before":"Compressed dealer-regime segment tape for one replay date (YYYY-MM-DD).","detail":"Description of `get_regime_segments` changed (79% word delta).","severity":"risky","descriptionDelta":0.7916666666666666},{"kind":"description_changed","tool":"unsubscribe","after":"Remove an event subscription by id (the subscription_id that subscribe_event returned).","before":"Remove an event subscription by id.","detail":"Description of `unsubscribe` changed (45% word delta).","severity":"risky","descriptionDelta":0.4545454545454546},{"kind":"resource_added","tool":"zdte://field-guide","after":"zdte://field-guide","detail":"Resource `zdte://field-guide` was added.","severity":"safe"},{"kind":"prompt_added","tool":"compare_regime_timeline","after":"compare_regime_timeline","detail":"Prompt `compare_regime_timeline` was added.","severity":"safe"},{"kind":"prompt_added","tool":"explain_gamma_flip_and_walls","after":"explain_gamma_flip_and_walls","detail":"Prompt `explain_gamma_flip_and_walls` was added.","severity":"safe"},{"kind":"prompt_added","tool":"get_started","after":"get_started","detail":"Prompt `get_started` was added.","severity":"safe"},{"kind":"prompt_added","tool":"summarize_market_structure","after":"summarize_market_structure","detail":"Prompt `summarize_market_structure` was added.","severity":"safe"}],"published_at":"2026-10-07T21:13:18.621Z"}]