One read of Claude Developer Platform

This capture is too large to show at once. Changes 51-72 of 72 are below, significant first; the rest are on the following screens.

api/beta/organization/mcp_tunnels/reveal_token Changed · +2 / -1 lines

from line 28

2828 

2929- `"anthropic-beta": array of AnthropicBeta`

3030 

31 Optional header to specify the beta version(s) you want to use.

31 This endpoint is in beta: requests must send `mcp-tunnels-2026-05-19` in this header.

3232 

3333 - `string`

3434 

from line 151

151151curl https://api.anthropic.com/v1/organizations/tunnels/$TUNNEL_ID/reveal_token \

152152 -X POST \

153153 -H 'anthropic-version: 2023-06-01' \

154 -H 'anthropic-beta: mcp-tunnels-2026-05-19' \

154155 -H "X-Api-Key: $ANTHROPIC_API_KEY"

155156```

156157 

api/beta/organization/mcp_tunnels/rotate_token Changed · +2 / -1 lines

from line 27

2727 

2828- `"anthropic-beta": array of AnthropicBeta`

2929 

30 Optional header to specify the beta version(s) you want to use.

30 This endpoint is in beta: requests must send `mcp-tunnels-2026-05-19` in this header.

3131 

3232 - `string`

3333 

from line 158

158158curl https://api.anthropic.com/v1/organizations/tunnels/$TUNNEL_ID/rotate_token \

159159 -X POST \

160160 -H 'anthropic-version: 2023-06-01' \

161 -H 'anthropic-beta: mcp-tunnels-2026-05-19' \

161162 -H "X-Api-Key: $ANTHROPIC_API_KEY"

162163```

163164 

api/beta/organization/mcp_tunnels/tunnel_certificates/archive Changed · +2 / -1 lines

from line 31

3131 

3232- `"anthropic-beta": array of AnthropicBeta`

3333 

34 Optional header to specify the beta version(s) you want to use.

34 This endpoint is in beta: requests must send `mcp-tunnels-2026-05-19` in this header.

3535 

3636 - `string`

3737 

from line 177

177177curl https://api.anthropic.com/v1/organizations/tunnels/$TUNNEL_ID/certificates/$CERTIFICATE_ID/archive \

178178 -X POST \

179179 -H 'anthropic-version: 2023-06-01' \

180 -H 'anthropic-beta: mcp-tunnels-2026-05-19' \

180181 -H "X-Api-Key: $ANTHROPIC_API_KEY"

181182```

182183 

api/beta/organization/mcp_tunnels/tunnel_certificates/create Changed · +2 / -1 lines

from line 28

2828 

2929- `"anthropic-beta": array of AnthropicBeta`

3030 

31 Optional header to specify the beta version(s) you want to use.

31 This endpoint is in beta: requests must send `mcp-tunnels-2026-05-19` in this header.

3232 

3333 - `string`

3434 

from line 183

183183curl https://api.anthropic.com/v1/organizations/tunnels/$TUNNEL_ID/certificates \

184184 -H 'Content-Type: application/json' \

185185 -H 'anthropic-version: 2023-06-01' \

186 -H 'anthropic-beta: mcp-tunnels-2026-05-19' \

186187 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

187188 -d '{

188189 "ca_certificate_pem": "-----BEGIN CERTIFICATE-----\nMIIBexampleEXAMPLEexampleEXAMPLEexampleEXAMPLEexampleEXAMPLEexa\n...illustrative placeholder, not a real certificate...\n-----END CERTIFICATE-----\n"

api/beta/organization/mcp_tunnels/tunnel_certificates/list Changed · +2 / -1 lines

from line 45

4545 

4646- `"anthropic-beta": array of AnthropicBeta`

4747 

48 Optional header to specify the beta version(s) you want to use.

48 This endpoint is in beta: requests must send `mcp-tunnels-2026-05-19` in this header.

4949 

5050 - `string`

5151 

from line 194

194194```bash

195195curl https://api.anthropic.com/v1/organizations/tunnels/$TUNNEL_ID/certificates \

196196 -H 'anthropic-version: 2023-06-01' \

197 -H 'anthropic-beta: mcp-tunnels-2026-05-19' \

197198 -H "X-Api-Key: $ANTHROPIC_API_KEY"

198199```

199200 

api/beta/organization/mcp_tunnels/tunnel_certificates/retrieve Changed · +2 / -1 lines

from line 27

2727 

2828- `"anthropic-beta": array of AnthropicBeta`

2929 

30 Optional header to specify the beta version(s) you want to use.

30 This endpoint is in beta: requests must send `mcp-tunnels-2026-05-19` in this header.

3131 

3232 - `string`

3333 

from line 172

172172```bash

173173curl https://api.anthropic.com/v1/organizations/tunnels/$TUNNEL_ID/certificates/$CERTIFICATE_ID \

174174 -H 'anthropic-version: 2023-06-01' \

175 -H 'anthropic-beta: mcp-tunnels-2026-05-19' \

175176 -H "X-Api-Key: $ANTHROPIC_API_KEY"

176177```

177178 

api/beta/skills Changed · +2 / -2 lines

from line 206

206206 -H 'Content-Type: multipart/form-data' \

207207 -H 'anthropic-version: 2023-06-01' \

208208 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

209 -F files='["Example data"]'

209 -F 'files[]=@/path/to/file'

210210```

211211 

212212#### Response (200)

from line 1123

11231123 -H 'Content-Type: multipart/form-data' \

11241124 -H 'anthropic-version: 2023-06-01' \

11251125 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

1126 -F files='["Example data"]'

1126 -F 'files[]=@/path/to/file'

11271127```

11281128 

11291129##### Response (200)

api/beta/skills/create Changed · +1 / -1 lines

from line 204

204204 -H 'Content-Type: multipart/form-data' \

205205 -H 'anthropic-version: 2023-06-01' \

206206 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

207 -F files='["Example data"]'

207 -F 'files[]=@/path/to/file'

208208```

209209 

210210### Response (200)

api/beta/skills/versions Changed · +1 / -1 lines

from line 180

180180 -H 'Content-Type: multipart/form-data' \

181181 -H 'anthropic-version: 2023-06-01' \

182182 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

183 -F files='["Example data"]'

183 -F 'files[]=@/path/to/file'

184184```

185185 

186186#### Response (200)

api/beta/skills/versions/create Changed · +1 / -1 lines

from line 178

178178 -H 'Content-Type: multipart/form-data' \

179179 -H 'anthropic-version: 2023-06-01' \

180180 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

181 -F files='["Example data"]'

181 -F 'files[]=@/path/to/file'

182182```

183183 

184184### Response (200)

api/skills Changed · +2 / -2 lines

from line 106

106106 -H 'Content-Type: multipart/form-data' \

107107 -H 'anthropic-version: 2023-06-01' \

108108 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

109 -F files='["Example data"]'

109 -F 'files[]=@/path/to/file'

110110```

111111 

112112#### Response (200)

from line 623

623623 -H 'Content-Type: multipart/form-data' \

624624 -H 'anthropic-version: 2023-06-01' \

625625 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

626 -F files='["Example data"]'

626 -F 'files[]=@/path/to/file'

627627```

628628 

629629##### Response (200)

api/skills/create Changed · +1 / -1 lines

from line 104

104104 -H 'Content-Type: multipart/form-data' \

105105 -H 'anthropic-version: 2023-06-01' \

106106 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

107 -F files='["Example data"]'

107 -F 'files[]=@/path/to/file'

108108```

109109 

110110### Response (200)

api/skills/versions Changed · +1 / -1 lines

from line 80

8080 -H 'Content-Type: multipart/form-data' \

8181 -H 'anthropic-version: 2023-06-01' \

8282 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

83 -F files='["Example data"]'

83 -F 'files[]=@/path/to/file'

8484```

8585 

8686#### Response (200)

api/skills/versions/create Changed · +1 / -1 lines

from line 78

7878 -H 'Content-Type: multipart/form-data' \

7979 -H 'anthropic-version: 2023-06-01' \

8080 -H "X-Api-Key: $ANTHROPIC_API_KEY" \

81 -F files='["Example data"]'

81 -F 'files[]=@/path/to/file'

8282```

8383 

8484### Response (200)

build-with-claude/extended-thinking Changed · +1 / -1 lines

from line 54

5454 

5555 ```bash CLI

5656 ant messages create \

57 --transform content --format yaml <<'YAML'

57 --format yaml <<'YAML'

5858 model: claude-sonnet-4-6

5959 max_tokens: 16000

6060 thinking:

build-with-claude/preserved-thinking Changed · +0 / -1 lines

from line 140

140140 

141141 ```bash CLI

142142 ant beta:messages create --beta thinking-binding-controls-2026-08-01 \

143 --transform '{content.#(type=="text")#.text,input_transformations}' \

144143 --format yaml <<'YAML'

145144 model: claude-fable-5-1

146145 max_tokens: 16000

manage-claude/cmek Changed · +1 / -1 lines

from line 23

2323 

2424## How it works

2525 

26Only Organization Admins (on Claude Platform; the Admin role on Claude Platform on AWS) or Owners and the Primary Owner (on Claude Enterprise) can configure CMEK. On Claude Platform, CMEK is scoped per workspace and configured with the Admin API (on Claude Platform on AWS, in the Claude Console or through the IAM-authorized external key and workspace endpoints). On Claude Enterprise, CMEK is scoped per organization and configured in [claude.ai > Organization settings > Data and privacy](https://claude.ai/admin-settings/data-privacy-controls). On either product, CMEK protects data written after your key takes effect. Existing data (prior chats, files, and sessions) remains encrypted with Anthropic-managed keys and is not re-encrypted under your key.

26Only Organization Admins (on Claude Platform; the Admin role on Claude Platform on AWS) or Owners and the Primary Owner (on Claude Enterprise) can configure CMEK. On Claude Platform, CMEK is scoped per workspace and configured in the Claude Console or with the Admin API (on Claude Platform on AWS, in the Claude Console or through the IAM-authorized external key and workspace endpoints). On Claude Enterprise, CMEK is scoped per organization and configured in [claude.ai > Organization settings > Data and privacy](https://claude.ai/admin-settings/data-privacy-controls). On either product, CMEK protects data written after your key takes effect. Existing data (prior chats, files, and sessions) remains encrypted with Anthropic-managed keys and is not re-encrypted under your key.

2727 

2828On Claude Platform, Anthropic recommends attaching your key to a new workspace before you send any requests to that workspace. If you attach a key to a workspace that already receives requests, your key can take up to a day to take effect. Data written before then, like existing data, is encrypted with Anthropic-managed keys and is not re-encrypted.

2929 

managed-agents/permission-policies Changed · +2 / -2 lines

from line 475

475475 

476476Use the `configs` array to override the default for individual tools. The `name` values for the agent toolset are listed in [Available tools](https://platform.claude.com/docs/en/managed-agents/tools#available-tools). This example allows the full agent toolset by default but requires confirmation before any bash command runs:

477477 

478<CodeGroup defaultLanguage="CLI">

478<CodeGroup>

479479 ```bash cURL

480480 tools='[

481481 {

from line 1075

10751075 

10761076In the following examples, the tool-use event IDs come from the `stop_reason.event_ids` array of the `session.status_idle` event. Learn more about receiving events in the [Session event stream](https://platform.claude.com/docs/en/managed-agents/events-and-streaming#integrating-events) guide, or [subscribe to webhooks](https://platform.claude.com/docs/en/managed-agents/webhooks) to be notified when a session pauses for input.

10771077 

1078<CodeGroup defaultLanguage="CLI">

1078<CodeGroup>

10791079 ```bash cURL

10801080 # Allow the tool to execute

10811081 curl -fsSL "https://api.anthropic.com/v1/sessions/$SESSION_ID/events" \

managed-agents/self-hosted-sandboxes Changed · +1 / -1 lines

from line 74

7474 

7575 Or through the API:

7676 

77 <CodeGroup>

77 <CodeGroup defaultLanguage="CLI">

7878 ```bash cURL

7979 curl -sS --fail-with-body https://api.anthropic.com/v1/environments \

8080 -H "x-api-key: $ANTHROPIC_API_KEY" \

managed-agents/skills Changed · +1 / -1 lines

from line 431

431431 

432432To load skills from a repository, create a session that mounts it. This is the same request shown in [Accessing GitHub](https://platform.claude.com/docs/en/managed-agents/github#token-permissions); `mount_path` is optional and defaults to `/workspace/<repo-name>`:

433433 

434<CodeGroup defaultLanguage="CLI">

434<CodeGroup>

435435 ```bash cURL

436436 session_id=$(curl -fsS https://api.anthropic.com/v1/sessions \

437437 -H "x-api-key: $ANTHROPIC_API_KEY" \

managed-agents/tools Changed · +2 / -2 lines

from line 35

3535 

3636Config entries for `web_search` and `web_fetch` also accept domain filters and other web settings; see [Restrict web search and web fetch domains](https://platform.claude.com/docs/en/managed-agents/tools#restrict-web-search-and-web-fetch-domains).

3737 

38<CodeGroup defaultLanguage="CLI">

38<CodeGroup>

3939 ```bash cURL

4040 agent=$(curl -fsSL https://api.anthropic.com/v1/agents \

4141 -H "x-api-key: $ANTHROPIC_API_KEY" \

from line 258

258258 

259259The following request creates an agent with this toolset and prints the `configs` array from the response:

260260 

261<CodeGroup defaultLanguage="CLI">

261<CodeGroup>

262262 ```bash cURL

263263 agent=$(curl -fsSL https://api.anthropic.com/v1/agents \

264264 -H "x-api-key: $ANTHROPIC_API_KEY" \

models/sonnet-5/migration-guide Changed · +1 / -1 lines

from line 340

340340 

341341 ```bash CLI

342342 ant messages create \

343 --transform content --format yaml <<'YAML'

343 --format yaml <<'YAML'

344344 model: claude-sonnet-4-6

345345 max_tokens: 16000

346346 thinking: