---
title: "Cloudflare Legacy Workers KV namespace API routes stop working October 15, 2026: 2026-10-15 | Harbyn"
description: "Cloudflare Legacy Workers KV namespace API routes stop working October 15, 2026, effective Oct 15, 2026; replacement: ANY /accounts/{account_id}/storage/kv/namespaces, ANY /accounts/{account_id}/storage/kv/namespaces..."
canonical: "https://harbyn.com/changes/cloudflare/2026-07-15-workers-kv-legacy-namespace-routes-reach-end-of-life"
last-updated: 2026-10-08
---

# Cloudflare Legacy Workers KV namespace API routes stop working October 15, 2026

Markdown version of <https://harbyn.com/changes/cloudflare/2026-07-15-workers-kv-legacy-namespace-routes-reach-end-of-life>.

Retirement - Cloudflare. high severity. In effect.

After October 15, 2026, the legacy /accounts/{account\_id}/workers/namespaces/\* routes are no longer supported. The /accounts/{account\_id}/storage/kv/namespaces/\* routes take the same parameters and return the same payloads; only the path changes.

The deadline passed on Oct 15, 2026.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [Cloudflare](https://harbyn.com/vendors/cloudflare.md) |
| Kind | Retirement |
| Severity | high |
| Status | In effect |
| Announced | Jul 15, 2026 |
| Effective | Oct 15, 2026 |
| Added to Harbyn | Oct 8, 2026 |
| Lead time | 7 days of warning |
| Endpoints | `ANY /accounts/{account_id}/workers/namespaces`, `ANY /accounts/{account_id}/workers/namespaces/{namespace_id}`, `GET /accounts/{account_id}/workers/namespaces/{namespace_id}/keys`, `GET /accounts/{account_id}/workers/namespaces/{namespace_id}/metadata/{key_name}`, `ANY /accounts/{account_id}/workers/namespaces/{namespace_id}/values/{key_name}` |
| Replacement | `ANY /accounts/{account_id}/storage/kv/namespaces`, `ANY /accounts/{account_id}/storage/kv/namespaces/{namespace_id}`, `GET /accounts/{account_id}/storage/kv/namespaces/{namespace_id}/keys`, `GET /accounts/{account_id}/storage/kv/namespaces/{namespace_id}/metadata/{key_name}`, `ANY /accounts/{account_id}/storage/kv/namespaces/{namespace_id}/values/{key_name}` |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

The scanner reads your repository on your machine and reports every file and line that uses the identifiers above, with the replacement. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://developers.cloudflare.com/fundamentals/api/reference/deprecations/> (deprecations, fetched 2026-10-08 17:16 UTC, sha256 `d7c038e2553509de3d70846a452398fc4acd4d5c7740643722821ae47e76cfb0`)

## Related changes

### More from Cloudflare

- [CIDR-encoded Zero Trust route endpoints and Tunnel connections field removed](https://harbyn.com/changes/cloudflare/2026-07-09-zero-trust-route-endpoints-and-tunnel-connections-field-changes.md) (Retirement, effective Oct 5, 2026)
- [Account creation API rejects names longer than 65 characters](https://harbyn.com/changes/cloudflare/2026-07-22-account-name-limit-enforcement.md) (Behavior change, effective Sep 27, 2026)
- [DNS settings API drops the foundation\_dns field on November 23, 2026](https://harbyn.com/changes/cloudflare/2026-07-27-foundation-dns-boolean-deprecated.md) (Retirement, effective Nov 23, 2026)
- [Zone Settings Batch API end of life moved to March 31, 2027](https://harbyn.com/changes/cloudflare/2026-07-27-zone-settings-batch-api-end-of-life-extended.md) (Retirement, effective Mar 31, 2027)

### Changes at other vendors

- [OpenRouter: arcee-ai/trinity-large-thinking expire 2026-10-26](https://harbyn.com/changes/openrouter/2026-10-23-arcee-ai-trinity-large-thinking-expires-2026-10-26.md) (effective Oct 26, 2026)
- [Google Cloud Run and Functions: Node.js 20 runtime decommission](https://harbyn.com/changes/google-cloud/2026-10-08-node-js-20-runtime-decommission.md) (effective Oct 30, 2026)
- [Mistral AI: Z.ai GLM 5.2 (zai-glm-5-2) retires on Mistral on October 31, 2026](https://harbyn.com/changes/mistral/2026-09-29-z-ai-glm-5-2-deprecated-and-scheduled-for-retirement.md) (effective Oct 31, 2026)
- [Fireworks AI: DeepSeek V4 Flash 0731 retires from Serverless Training November 2](https://harbyn.com/changes/fireworks/2026-10-18-upcoming-serverless-training-deprecation-deepseek-v4-flash-0731.md) (effective Nov 2, 2026)

[All upcoming deadlines](https://harbyn.com/deadlines.md)