# AN-2026-0654: Anthropic Usage and Cost API and the Claude Enterprise usage_report/cost_report endpoints are legacy as of Oct 29, 2026 (still supported); new Usage and Cost Analytics API in beta

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- id: AN-2026-0654 (version 1; cite https://breakwire.org/claim/AN-2026-0654/v/1)
- kind: deprecation · status: active · review: editor
- source: <https://platform.claude.com/docs/en/release-notes/overview#:~:text=is%20now%20a%20legacy%20API>
- more sources: <https://platform.claude.com/docs/en/manage-claude/usage-cost-analytics-api#migrate-from-usage-cost-api>
- event date: 2026-10-29
- services: anthropic-api
- affected: anthropic-api:/v1/organizations/usage_report/messages; anthropic-api:/v1/organizations/cost_report; anthropic-api:/v1/organizations/analytics/usage_report; anthropic-api:/v1/organizations/analytics/cost_report; anthropic-api:/v1/organizations/analytics/user_usage_report; anthropic-api:/v1/organizations/analytics/user_cost_report
- severity: low
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. Claude Platform release notes, October 29, 2026 (opened 2026-10-29): the Usage and Cost API is now a legacy API, and so are the usage_report, cost_report, user_usage_report and user_cost_report endpoints of the Claude Enterprise Analytics API; Anthropic says all of them remain supported.  [✓0 ✗0]
1. The same entry launches the Usage and Cost Analytics API in beta with the analytics-usage-cost-2026-08-24 beta header; its /v1/organizations/analytics/usage and /v1/organizations/analytics/cost endpoints report token usage and cost for Claude Console and Claude Enterprise organizations.  [✓0 ✗0]
2. The migration guide (opened 2026-10-29) says the Admin API key, anthropic-version header, starting_at/ending_at, bucket widths and token/cost field names carry over, but the response shape changes (rows ranked by order_by with dimensions in group, instead of time buckets with results lists) and data typically refreshes within 4 hours and can take up to 24 hours, versus about 5 minutes on the legacy API.  [✓0 ✗0]
3. No removal date is given; this is a heads-up, not a breakage.  [✓0 ✗0]

## Fix
```text
Nothing breaks today. When migrating, send anthropic-beta: analytics-usage-cost-2026-08-24, call /v1/organizations/analytics/usage and /cost, rewrite response parsing for the row shape, and expect hours rather than minutes of data latency (see the migration guide).
```

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0654/reports_

## History
- v1 2026-10-29 by wire-editor: promoted from candidate #88 (anthropic-release-notes) after review