One read of Claude Developer Platformapi-20260925T153714Z

This capture is too large to show at once. Changes 176-200 of 310 are below, significant first; the rest are on the following screens.

about-claude/models/choosing-a-model Changed · +1 / -1 lines

from line 55

5555 

5656**Claude Opus 5.5** (`claude-opus-5-5`) is built for long-running agentic coding and knowledge work, with [adaptive thinking](https://platform.claude.com/docs/en/build-with-claude/thinking) always on. If your integration forces tool use (`tool_choice` of type `any` or `tool`), turns thinking off, or uses the `computer_20251124` computer use tool, see [Breaking changes](https://platform.claude.com/docs/en/models/opus-5-5/whats-new-opus-5-5#breaking-changes) before switching.

5757 

58**Claude Fable 5.1** (`claude-fable-5-1`) is Anthropic's most capable widely released model. It extends Claude Fable 5 with stronger long-running agentic coding, knowledge work, and research at the same input and output prices, with cache reads at a quarter of the cost. **Claude Mythos 5.1** (`claude-mythos-5-1`) offers the same capabilities to [Project Glasswing](https://anthropic.com/glasswing) participants only. Both models use always-on [adaptive thinking](https://platform.claude.com/docs/en/build-with-claude/thinking). See [What's new in Claude Fable 5.1](https://platform.claude.com/docs/en/models/fable-5-1/whats-new-fable-5-1) for details.

58**Claude Fable 5.1** (`claude-fable-5-1`) is Anthropic's most capable model open to all customers. It extends Claude Fable 5 with stronger long-running agentic coding, knowledge work, and research at the same input and output prices, with cache reads at a quarter of the cost. **Claude Mythos 5.1** (`claude-mythos-5-1`) offers the same capabilities to [Project Glasswing](https://anthropic.com/glasswing) participants only. Both models use always-on [adaptive thinking](https://platform.claude.com/docs/en/build-with-claude/thinking). See [What's new in Claude Fable 5.1](https://platform.claude.com/docs/en/models/fable-5-1/whats-new-fable-5-1) for details.

5959 

6060For context windows, output limits, and prices, see the [model comparison table](https://platform.claude.com/docs/en/models/overview#latest-models-comparison).

6161 

about-claude/use-case-guides/ticket-routing Changed · +1 / -1 lines

from line 235

235235 

236236The choice of model depends on the trade-offs between cost, accuracy, and response time.

237237 

238Many customers have found `claude-haiku-4-5-20251001` an ideal model for ticket routing, as it is the fastest and most cost-effective model in the Claude 4 family while still delivering excellent results. If your classification problem requires deep subject matter expertise or a large volume of intent categories, or complex reasoning, you may opt for the [larger Sonnet model](https://platform.claude.com/docs/en/about-claude/models).

238Many customers have found `claude-haiku-4-5-20251001` an ideal model for ticket routing, as it is the fastest and most cost-effective model in the Claude 4 family while still delivering excellent results. If your classification problem requires deep subject matter expertise or a large volume of intent categories, or complex reasoning, you may opt for the [larger Sonnet model](https://platform.claude.com/docs/en/models/overview).

239239 

240240### Build a strong prompt

241241 

agents-and-tools/mcp-tunnels/reference Changed · +1 / -1 lines

from line 39

3939The Tunnels REST API lives at `/v1/tunnels` and supports creating, listing, and archiving tunnels, registering CA certificates, and revealing or rotating the tunnel token. See the [Tunnels API reference](https://platform.claude.com/docs/en/api/beta/tunnels/list) for all endpoints, request and response schemas, and examples.

4040 

4141<Note>

42 The previous Admin API surface at `/v1/organizations/tunnels` (beta header `mcp-tunnels-2026-05-19`, scope `org:manage_tunnels`) continues to work during a migration window and remains documented in the [Admin API reference](https://platform.claude.com/docs/en/api/admin/mcp_tunnels) with a deprecation notice. To migrate, update the path to `/v1/tunnels`, the beta header to `mcp-tunnels-2026-06-22`, and your WIF token scope to `workspace:manage_tunnels`.

42 The previous Admin API surface at `/v1/organizations/tunnels` (beta header `mcp-tunnels-2026-05-19`, scope `org:manage_tunnels`) continues to work during a migration window and remains documented in the [Admin API reference](https://platform.claude.com/docs/en/api/beta/organization/mcp_tunnels) with a deprecation notice. To migrate, update the path to `/v1/tunnels`, the beta header to `mcp-tunnels-2026-06-22`, and your WIF token scope to `workspace:manage_tunnels`.

4343</Note>

4444 

4545<Warning>

api/beta/environments/list Changed · +1 / -1 lines

from line 21

2121 

2222 Maximum number of environments to return

2323 

24 default: 20, maximum: 1000, minimum: 1

24 default: 20, minimum: 1, maximum: 1000

2525 

2626- `page: optional string`

2727 

api/beta/environments/work Changed · +1 / -1 lines

from line 1196

11961196 

11971197 Maximum number of work items to return

11981198 

1199 default: 20, maximum: 1000, minimum: 1

1199 default: 20, minimum: 1, maximum: 1000

12001200 

12011201- `page: optional string`

12021202 

api/beta/environments/work/list Changed · +1 / -1 lines

from line 21

2121 

2222 Maximum number of work items to return

2323 

24 default: 20, maximum: 1000, minimum: 1

24 default: 20, minimum: 1, maximum: 1000

2525 

2626- `page: optional string`

2727 

api/beta/files/retrieve_metadata Changed · +2 / -2 lines

from line 153

153153 

154154 Original filename of the uploaded file.

155155 

156 maxLength: 500, minLength: 1

156 minLength: 1, maxLength: 500

157157 

158158 - `mime_type: string`

159159 

160160 MIME type of the file.

161161 

162 maxLength: 255, minLength: 1

162 minLength: 1, maxLength: 255

163163 

164164 - `size_bytes: number`

165165 

api/beta/files/upload Changed · +2 / -2 lines

from line 161

161161 

162162 Original filename of the uploaded file.

163163 

164 maxLength: 500, minLength: 1

164 minLength: 1, maxLength: 500

165165 

166166 - `mime_type: string`

167167 

168168 MIME type of the file.

169169 

170 maxLength: 255, minLength: 1

170 minLength: 1, maxLength: 255

171171 

172172 - `size_bytes: number`

173173 

api/beta/memory_stores/memories/create Changed · +2 / -2 lines

from line 177

177177 

178178 - `created_at: string`

179179 

180 A timestamp in RFC 3339 format

180 When this memory was created, in RFC 3339 format.

181181 

182182 format: date-time

183183 

from line 195

195195 

196196 - `updated_at: string`

197197 

198 A timestamp in RFC 3339 format

198 When this memory was last modified, in RFC 3339 format. Use this as a cheap freshness signal; for who made the change, look up the head version's `created_by` via [List memory versions](/docs/en/api/beta/memory_stores/memory_versions/list).

199199 

200200 format: date-time

201201 

api/beta/memory_stores/memories/list Changed · +2 / -2 lines

from line 189

189189 

190190 - `created_at: string`

191191 

192 A timestamp in RFC 3339 format

192 When this memory was created, in RFC 3339 format.

193193 

194194 format: date-time

195195 

from line 207

207207 

208208 - `updated_at: string`

209209 

210 A timestamp in RFC 3339 format

210 When this memory was last modified, in RFC 3339 format. Use this as a cheap freshness signal; for who made the change, look up the head version's `created_by` via [List memory versions](/docs/en/api/beta/memory_stores/memory_versions/list).

211211 

212212 format: date-time

213213 

api/beta/memory_stores/memories/retrieve Changed · +2 / -2 lines

from line 169

169169 

170170 - `created_at: string`

171171 

172 A timestamp in RFC 3339 format

172 When this memory was created, in RFC 3339 format.

173173 

174174 format: date-time

175175 

from line 187

187187 

188188 - `updated_at: string`

189189 

190 A timestamp in RFC 3339 format

190 When this memory was last modified, in RFC 3339 format. Use this as a cheap freshness signal; for who made the change, look up the head version's `created_by` via [List memory versions](/docs/en/api/beta/memory_stores/memory_versions/list).

191191 

192192 format: date-time

193193 

api/beta/messages/batches/list Changed · +1 / -1 lines

from line 27

2727 

2828 Defaults to `20`. Ranges from `1` to `1000`.

2929 

30 default: 20, maximum: 1000, minimum: 1

30 default: 20, minimum: 1, maximum: 1000

3131 

3232## Headers

3333 

api/beta/organization/analytics/chat_projects Changed · +2 / -2 lines

from line 107

107107 

108108 - `created_by: optional BetaAnalyticsUser or null`

109109 

110 A user in the organization, identified by tagged id and email address.

110 User who created the project. Null if the project was deleted before attribution was recorded, or if the creator's account no longer exists.

111111 

112112 - `type: "user"`

113113 

from line 216

216216 

217217 - `created_by: optional BetaAnalyticsUser or null`

218218 

219 A user in the organization, identified by tagged id and email address.

219 User who created the project. Null if the project was deleted before attribution was recorded, or if the creator's account no longer exists.

220220 

221221 - `type: "user"`

222222 

api/beta/organization/analytics/chat_projects/list Changed · +1 / -1 lines

from line 105

105105 

106106 - `created_by: optional BetaAnalyticsUser or null`

107107 

108 A user in the organization, identified by tagged id and email address.

108 User who created the project. Null if the project was deleted before attribution was recorded, or if the creator's account no longer exists.

109109 

110110 - `type: "user"`

111111 

api/beta/organization/analytics/cost Changed · +1 / -1 lines

from line 484

484484 

485485 Number of rows per page (1-1000, default 20). One row per actor unless `group_by[]` or `bucket_width` splits an actor across rows; `cost_type`/`token_type` fan-out rows (cost endpoint only) are the exception — they do not count toward this limit, so `data` can exceed it.

486486 

487 default: 20, maximum: 1000, minimum: 1

487 default: 20, minimum: 1, maximum: 1000

488488 

489489- `models: optional array of string`

490490 

api/beta/organization/analytics/cost/list_by_user Changed · +1 / -1 lines

from line 123

123123 

124124 Number of rows per page (1-1000, default 20). One row per actor unless `group_by[]` or `bucket_width` splits an actor across rows; `cost_type`/`token_type` fan-out rows (cost endpoint only) are the exception — they do not count toward this limit, so `data` can exceed it.

125125 

126 default: 20, maximum: 1000, minimum: 1

126 default: 20, minimum: 1, maximum: 1000

127127 

128128- `models: optional array of string`

129129 

api/beta/organization/analytics/usage Changed · +1 / -1 lines

from line 479

479479 

480480 Number of rows per page (1-1000, default 20). One row per actor unless `group_by[]` or `bucket_width` splits an actor across rows; `cost_type`/`token_type` fan-out rows (cost endpoint only) are the exception — they do not count toward this limit, so `data` can exceed it.

481481 

482 default: 20, maximum: 1000, minimum: 1

482 default: 20, minimum: 1, maximum: 1000

483483 

484484- `models: optional array of string`

485485 

api/beta/organization/analytics/usage/list_by_user Changed · +1 / -1 lines

from line 119

119119 

120120 Number of rows per page (1-1000, default 20). One row per actor unless `group_by[]` or `bucket_width` splits an actor across rows; `cost_type`/`token_type` fan-out rows (cost endpoint only) are the exception — they do not count toward this limit, so `data` can exceed it.

121121 

122 default: 20, maximum: 1000, minimum: 1

122 default: 20, minimum: 1, maximum: 1000

123123 

124124- `models: optional array of string`

125125 

api/beta/organization/analytics/users Changed · +2 / -2 lines

from line 379

379379 

380380 - `user: optional BetaAnalyticsUser or null`

381381 

382 A user in the organization, identified by tagged id and email address.

382 The user this row describes. Null on rows aggregated across users.

383383 

384384 - `type: "user"`

385385 

from line 849

849849 

850850 - `user: optional BetaAnalyticsUser or null`

851851 

852 A user in the organization, identified by tagged id and email address.

852 The user this row describes. Null on rows aggregated across users.

853853 

854854 - `type: "user"`

855855 

api/beta/organization/analytics/users/list Changed · +1 / -1 lines

from line 377

377377 

378378 - `user: optional BetaAnalyticsUser or null`

379379 

380 A user in the organization, identified by tagged id and email address.

380 The user this row describes. Null on rows aggregated across users.

381381 

382382 - `type: "user"`

383383 

api/beta/organization/api_keys Changed · +2 / -2 lines

from line 31

3131 

3232 Defaults to `20`. Ranges from `1` to `1000`.

3333 

34 default: 20, maximum: 1000, minimum: 1

34 default: 20, minimum: 1, maximum: 1000

3535 

3636- `status: optional "active" or "archived" or "expired" or "inactive"`

3737 

from line 416

416416 

417417 Name of the API key.

418418 

419 maxLength: 500, minLength: 1

419 minLength: 1, maxLength: 500

420420 

421421- `status: optional "active" or "archived" or "inactive" or null`

422422 

api/beta/organization/api_keys/list Changed · +1 / -1 lines

from line 29

2929 

3030 Defaults to `20`. Ranges from `1` to `1000`.

3131 

32 default: 20, maximum: 1000, minimum: 1

32 default: 20, minimum: 1, maximum: 1000

3333 

3434- `status: optional "active" or "archived" or "expired" or "inactive"`

3535 

api/beta/organization/api_keys/update Changed · +1 / -1 lines

from line 21

2121 

2222 Name of the API key.

2323 

24 maxLength: 500, minLength: 1

24 minLength: 1, maxLength: 500

2525 

2626- `status: optional "active" or "archived" or "inactive" or null`

2727 

api/beta/organization/cost_report Changed · +1 / -1 lines

from line 44

4444 

4545 Maximum number of time buckets to return in the response.

4646 

47 default: 7, maximum: 31, minimum: 1

47 default: 7, minimum: 1, maximum: 31

4848 

4949- `page: optional string`

5050 

api/beta/organization/cost_report/retrieve Changed · +1 / -1 lines

from line 42

4242 

4343 Maximum number of time buckets to return in the response.

4444 

45 default: 7, maximum: 31, minimum: 1

45 default: 7, minimum: 1, maximum: 31

4646 

4747- `page: optional string`

4848