{"slug":"data-changelog","id":"data-changelog","type":"reference","title":"Data Changelog","description":"How AI Future Ready tracks data updates, pricing changes, model changes, verification updates, hashes, and alert-ready change records.","last_updated":"2026-04-24","last_verified":null,"verification_status":"unverified","markdown_url":"/content/api-reference/data-changelog.md","html_url":"/api-reference/data-changelog","api_url":"/api/v1/api-reference/data-changelog.json","content_hash":"3ffb6463fe2a2359f822ee2d746dc5ab9e7673ab513d8f7a18c2476b3421b355","sha256":"3ffb6463fe2a2359f822ee2d746dc5ab9e7673ab513d8f7a18c2476b3421b355","tags":["api","changelog","changes","pricing","agents"],"relationships":{"links":[],"related":[{"id":"pro-data","title":"Pro Data","type":"pricing","html_url":"/pricing/pro-data","markdown_url":"/content/pricing/pro-data.md","shared_tags":["pricing","api","agents"],"score":3},{"id":"pro-data-sample","title":"Pro Data Sample","type":"pricing","html_url":"/pricing/pro-data-sample","markdown_url":"/content/pricing/pro-data-sample.md","shared_tags":["pricing","api","agents"],"score":3},{"id":"agent-usage-guide","title":"Agent Usage Guide","type":"guide","html_url":"/guides/agent-usage","markdown_url":"/content/guides/agent-usage.md","shared_tags":["agents","api"],"score":2},{"id":"change-alerts","title":"Change Alerts","type":"pricing","html_url":"/pricing/change-alerts","markdown_url":"/content/pricing/change-alerts.md","shared_tags":["changes","pricing"],"score":2},{"id":"commercial-data-license","title":"Commercial Data License","type":"pricing","html_url":"/pricing/commercial-license","markdown_url":"/content/pricing/commercial-license.md","shared_tags":["pricing","agents"],"score":2},{"id":"public-roadmap","title":"Public Roadmap","type":"pricing","html_url":"/pricing/roadmap","markdown_url":"/content/pricing/roadmap.md","shared_tags":["pricing","agents"],"score":2}],"explicit":{}},"metadata":{"title":"Data Changelog","type":"reference","id":"data-changelog","description":"How AI Future Ready tracks data updates, pricing changes, model changes, verification updates, hashes, and alert-ready change records.","last_updated":"2026-04-24","tags":["api","changelog","changes","pricing","agents"]},"content_text":"# Data Changelog\n\nThe data changelog is the machine-readable history of meaningful dataset changes. It is separate from editorial blog updates.\n\n## Current Endpoints\n\n| Endpoint | Purpose |\n|----------|---------|\n| `/api/v1/changes.json?since=YYYY-MM-DD` | Query changed items by date and optional type |\n| `/feed.json` | JSON Feed for update monitoring |\n| `/feed.xml` | RSS mirror |\n| `/api/v1/pricing-snapshots.json` | Current generated pricing snapshot for models |\n| `/api/v1/samples/pro-data.json` | Representative Pro Data sample |\n\n## Change Types\n\nPlanned change types:\n\n- `model_added`\n- `model_updated`\n- `provider_updated`\n- `price_changed`\n- `source_verified`\n- `score_changed`\n- `license_changed`\n- `deprecated`\n- `removed`\n\nThe current public change feed reports updated items with hashes. Field-level diffing is a planned Pro Data feature.\n\n## Hash Rules\n\nEach per-item JSON record includes:\n\n- `content_hash`\n- `sha256`\n- `generated_at`\n- `last_updated`\n- `last_verified` when available\n\nAgents can compare hashes to detect whether a page changed without reparsing the full document.\n\n## Alert Rules\n\nAgents and monitoring systems should alert on:\n\n- changed model pricing\n- changed context windows\n- changed license terms\n- new model entries\n- new provider entries\n- verification date refreshes\n- recommendation score changes\n- source URL changes\n\n## Planned Pro Data Fields\n\n```json\n{\n  \"change_type\": \"price_changed\",\n  \"field\": \"pricing.output\",\n  \"old_value\": \"$15.00 / 1M tokens\",\n  \"new_value\": \"$12.00 / 1M tokens\",\n  \"source_url\": \"https://example.com/pricing\",\n  \"verified_at\": \"YYYY-MM-DD\",\n  \"confidence\": \"high\"\n}\n```","content_length":1959,"generated_at":"2026-04-24"}