Calendar · By category
Every API being deprecated or sunset
29 API entries across every vendor we track — soonest first. Each links to the vendor’s own announcement.
API →10 days
Reddit Reddit is ending support for RSS feeds on 13 November 2026 and winding down public (data) API access — new API access requests stop 31 October 2026 and the public API shuts down for all remaining apps and users in March 2027, moving developers to its Developer Platform.
API →14 days
Google Google is retiring five preview audio models from the Gemini API on 17 November 2026 — the text-to-speech models gemini-3.1-flash-tts-preview, gemini-2.5-flash-preview-tts and gemini-2.5-pro-preview-tts, and the Live API models gemini-3.1-flash-live-preview and gemini-2.5-flash-native-audio-preview-12-2025 — directing developers to the gemini-3.8 Live and TTS successors
API →20 days
Cloudflare The foundation_dns boolean in Cloudflare's DNS settings endpoints (/zones/{zone_id}/dns_settings and /accounts/{account_id}/dns_settings) is deprecated; code must select Advanced Nameservers via nameservers.type: "cloudflare.advanced" instead
API →27 days
OpenAI OpenAI is retiring its hosted Evals platform: existing evals become read-only on 31 October 2026, and the Evals dashboard and API shut down entirely on 30 November 2026
API →28 days
OpenAI OpenAI is deprecating three GPT Image generation models — gpt-image-1-mini, gpt-image-1.5 and chatgpt-image-latest — and removing them from the API, directing developers to gpt-image-2
API →28 days
Cloudflare The REST DNS Analytics API (/zones/{zone_id}/dns_analytics/) and DNS Firewall Analytics API (/accounts/{account_id}/dns_firewall/{id}/dns_analytics/report) stop working; analytics automation must move to Cloudflare's GraphQL Analytics API
API →38 days
OpenAI OpenAI is removing the dated GPT-5 and o3 model snapshots — gpt-5-2025-08-07, gpt-5-mini-2025-08-07, gpt-5-nano-2025-08-07, gpt-5-pro-2025-10-06, o3-2025-04-16 and o3-pro-2025-06-10 — from the API on 11 December 2026, directing developers to the gpt-5.6 family
API →11 weeks
OpenAI OpenAI has deprecated a family of older audio, realtime, and speech-to-text API models — including gpt-realtime, gpt-audio, and the gpt-4o audio/realtime line — and will remove them from the API on 20 January 2027
API →16 weeks
OpenAI OpenAI has deprecated its older speech-to-text API models — whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, and gpt-4o-transcribe-diarize — and will remove them from the API on 26 February 2027
API →21 weeks
Cloudflare Cloudflare deprecates three Radar API endpoints — GET /radar/http/top/browser, GET /radar/http/top/browser_family, and GET /radar/netflows/summary — on 2 October 2026, with end of life on 2 April 2027; callers move to the dimensioned summary endpoints.
API →1.9 years
Microsoft Microsoft will retire several standalone Azure Communication Services (ACS) offerings — including Email, SMS, WhatsApp messaging, Chat, Rooms, Direct Routing, Job Router and the Web/Mobile UI Library SDKs — on 30 September 2028; the ACS calling services undergo breaking changes and will continue to function only with Microsoft Teams and only after apps update to the latest SDKs
API ·not announced
Google The Maps JavaScript API Heatmap Layer and Drawing Library are no longer supported and have been removed
API ↙gone
Google (Tenor) Google decommissioned the Tenor API — the GIF search and share service behind GIF pickers across the web — on 30 June 2026, terminating all API and Ads Distribution Agreements and ending third-party access with no official replacement
API ↙gone
Adobe Adobe retires the Lightroom API (Firefly Services), directing users to Photoshop API v2
API ↙gone
Google Google will sunset the Content API for Shopping on 18 August 2026, replacing it with the newer Merchant API
API ↙gone
OpenAI OpenAI has deprecated the Assistants API and will remove it from the platform on 26 August 2026, directing developers to the newer Responses API
API ↙gone
New Relic New Relic will shut off its NRQL Drop Filter Rules API on 31 August 2026, moving drop-rule management to the Pipeline Cloud Rules API and the Pipeline Control UI
API ↙gone
Microsoft Microsoft retires the Azure Maps Render v1 REST API — after 17 September 2026 calls to the Render v1 endpoints stop working and must move to Render v2
API ↙gone
OpenAI OpenAI is removing its Sora 2 video-generation models and the Videos API from the platform — sora-2, sora-2-pro and their dated snapshots stop responding, with no direct replacement named
API ↙gone
Cloudflare The legacy Cloudflare Registrar domain-management API paths (/accounts/{account_id}/registrar/domains) stop working; automation that manages Cloudflare-registered domains must move to the new Registrar API
API ↙gone
Amazon Web Services Amazon will permanently close Amazon Mechanical Turk (MTurk) — the crowdsourcing marketplace and MTurk API for Human Intelligence Tasks — on 30 September 2026, and the same closure ends SageMaker Ground Truth and Amazon Augmented AI (A2I) human-review workflows
API ↙gone
Cloudflare Cloudflare retires Service Key API authentication; requests using the X-Auth-User-Service-Key header stop being accepted and callers must move to Cloudflare API Tokens
API ↙gone
OpenAI OpenAI is removing its gpt-5.4-cyber model from the API on 1 October 2026; anything that calls the model by the identifier gpt-5.4-cyber must switch to the named replacement gpt-5.6-cyber before the shutdown date
API ↙gone
Google Google has deprecated its Gemini 2.5 models in the Gemini API and directs developers to Gemini 3.x replacements; as of the latest deprecations page only Gemini 2.5 Flash Image carries a shutdown date (2 October 2026), while 2.5 Pro, 2.5 Flash and 2.5 Flash-Lite are listed as deprecated with "No shutdown date announced"
API ↙gone
Cloudflare Two related Cloudflare Zero Trust / Tunnel API changes reach end-of-life on 5 October 2026: the CIDR-encoded route endpoints (/accounts/{account_id}/teamnet/routes/network/{ip_network_encoded}) are removed in favor of the route_id-based /teamnet/routes endpoints, and the connections array is removed from cfd_tunnel and warp_connector list/get responses
API ↙gone
Microsoft Microsoft is disabling Exchange Web Services (EWS) in Exchange Online in a phased rollout: from 10 October 2026 every worldwide tenant with EWS enabled must maintain an AppID allow list (EWSAllowedAppIDs) or its EWS apps are blocked, and EWS is fully disabled in April 2027. Developers must migrate to Microsoft Graph.
API ↙gone
Cloudflare The old /workers/namespaces/ REST API paths for managing Workers KV stop working; calls must move to the /storage/kv/namespaces/ paths
API ↙gone
OpenAI OpenAI is removing a large batch of older chat and reasoning models from the API on 23 October 2026 — including gpt-4 (gpt-4-0613), gpt-3.5-turbo, gpt-4-turbo, gpt-4.1-nano, the gpt-4o-2024-05-13 snapshot, o1, o1-pro, o3-mini and o4-mini — directing developers to the gpt-5.6 family
API ↙gone