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1---2title: Create Environment3url: https://platform.claude.com/docs/en/api/beta/environments/create4---56# Create Environment78**POST** `/v1/environments`910Create a new environment with the specified configuration.1112## Headers1314- `"anthropic-beta": optional array of AnthropicBeta`1516 Optional header to specify the beta version(s) you want to use.1718 - `string`1920 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 43 more`2122 - `"message-batches-2024-09-24"`2324 - `"prompt-caching-2024-07-31"`2526 - `"computer-use-2024-10-22"`2728 - `"computer-use-2025-01-24"`2930 - `"pdfs-2024-09-25"`3132 - `"token-counting-2024-11-01"`3334 - `"token-efficient-tools-2025-02-19"`3536 - `"output-128k-2025-02-19"`3738 - `"files-api-2025-04-14"`3940 - `"mcp-client-2025-04-04"`4142 - `"mcp-client-2025-11-20"`4344 - `"dev-full-thinking-2025-05-14"`4546 - `"interleaved-thinking-2025-05-14"`4748 - `"code-execution-2025-05-22"`4950 - `"extended-cache-ttl-2025-04-11"`5152 - `"context-1m-2025-08-07"`5354 - `"context-management-2025-06-27"`5556 - `"model-context-window-exceeded-2025-08-26"`5758 - `"skills-2025-10-02"`5960 - `"fast-mode-2026-02-01"`6162 - `"output-300k-2026-03-24"`6364 - `"user-profiles-2026-03-24"`6566 - `"user-profiles-2026-08-18"`6768 - `"user-profiles-2026-09-04"`6970 - `"advisor-tool-2026-03-01"`7172 - `"managed-agents-2026-04-01"`7374 - `"cache-diagnosis-2026-04-07"`7576 - `"dreaming-2026-04-21"`7778 - `"thinking-token-count-2026-05-13"`7980 - `"server-side-fallback-2026-06-01"`8182 - `"server-side-fallback-2026-07-01"`8384 - `"fallback-credit-2026-06-01"`8586 - `"fallback-credit-2026-07-01"`8788 - `"agent-memory-2026-07-22"`8990 - `"mid-conversation-tool-changes-2026-07-01"`9192 - `"compact-2026-01-12"`9394 - `"computer-use-2025-11-24"`9596 - `"mcp-tunnels-2026-06-22"`9798 - `"structured-outputs-2025-11-13"`99100 - `"task-budgets-2026-03-13"`101102 - `"thinking-display-updates-2026-08-18"`103104 - `"ce-user-management-2026-07-13"`105106 - `"mid-conversation-output-config-2026-07-01"`107108 - `"thinking-binding-controls-2026-08-01"`109110 - `"mid-conversation-system-clear-at-2026-08-21"`111112 - `"compact-2026-09-04"`113114- `"anthropic-workspace-id": optional string`115116## Body parameters117118- `name: string`119120 Human-readable name for the environment121122 maxLength: 256, minLength: 1123124- `config: optional BetaCloudConfigParams or BetaSelfHostedConfigParams or null`125126 Environment configuration127128 - `BetaCloudConfigParams object`129130 Request params for `cloud` environment configuration.131132 Fields default to null; on update, omitted fields preserve the133 existing value.134135 - `type: "cloud"`136137 Environment type138139 - `networking: optional BetaUnrestrictedNetwork or BetaLimitedNetworkParams or null`140141 Network configuration policy. Omit on update to preserve the existing value.142143 - `BetaUnrestrictedNetwork object`144145 Unrestricted network access.146147 - `type: "unrestricted"`148149 Network policy type150151 - `BetaLimitedNetworkParams object`152153 Limited network request params.154155 Fields default to null; on update, omitted fields preserve the156 existing value.157158 - `type: "limited"`159160 Network policy type161162 - `allow_mcp_servers: optional boolean or null`163164 Permits outbound access to MCP server endpoints configured on the agent, beyond those listed in the `allowed_hosts` array. Defaults to `false`.165166 - `allow_package_managers: optional boolean or null`167168 Permits outbound access to public package registries (PyPI, npm, etc.) beyond those listed in the `allowed_hosts` array. Defaults to `false` on creation. Must be `true` when `packages` are specified.169170 - `allowed_hosts: optional array of string or null`171172 Specifies domains the container can reach.173174 - `packages: optional BetaPackagesParams or null`175176 Specify packages (and optionally their versions) available in this environment.177178 When versioning, use the version semantics relevant for the package manager, e.g. for `pip` use `package==1.0.0`. You are responsible for validating the package and version exist. Unversioned installs the latest.179180 Under `limited` networking, requires `networking.allow_package_managers` to be `true`.181182 - `type: optional "packages"`183184 Package configuration type185186 default: packages187188 - `apt: optional array of string or null`189190 Ubuntu/Debian packages to install191192 - `cargo: optional array of string or null`193194 Rust packages to install195196 - `gem: optional array of string or null`197198 Ruby packages to install199200 - `go: optional array of string or null`201202 Go packages to install203204 - `npm: optional array of string or null`205206 Node.js packages to install207208 - `pip: optional array of string or null`209210 Python packages to install211212 - `BetaSelfHostedConfigParams object`213214 Request params for `self_hosted` environment configuration.215216 - `type: "self_hosted"`217218 Environment type219220- `description: optional string or null`221222 Optional description of the environment223224 maxLength: 1024225226- `metadata: optional map[string]`227228 User-provided metadata key-value pairs229230- `scope: optional "organization" or "account" or null`231232 The visibility scope for this environment. 'organization' makes the environment visible to all accounts. 'account' restricts visibility to the owning account only. API organizations support only 'organization'; 'account' is rejected. If not specified, defaults based on organization type.233234 - `"organization"`235236 - `"account"`237238## Returns239240- `BetaEnvironment object`241242 Unified Environment resource for both cloud and self-hosted environments.243244 - `type: "environment"`245246 The type of object (always 'environment')247248 default: environment249250 - `id: string`251252 Environment identifier (e.g., 'env_...')253254 - `archived_at: string or null`255256 RFC 3339 timestamp when environment was archived, or null if not archived257258 - `config: BetaCloudConfig or BetaSelfHostedConfig`259260 Environment configuration (either Anthropic Cloud or self-hosted)261262 - `BetaCloudConfig object`263264 `cloud` environment configuration.265266 - `type: "cloud"`267268 Environment type269270 - `networking: BetaUnrestrictedNetwork or BetaLimitedNetwork`271272 Network configuration policy.273274 - `BetaUnrestrictedNetwork object`275276 Unrestricted network access.277278 - `type: "unrestricted"`279280 Network policy type281282 - `BetaLimitedNetwork object`283284 Limited network access.285286 - `type: "limited"`287288 Network policy type289290 - `allow_mcp_servers: boolean`291292 Permits outbound access to MCP server endpoints configured on the agent, beyond those listed in the `allowed_hosts` array.293294 - `allow_package_managers: boolean`295296 Permits outbound access to public package registries (PyPI, npm, etc.) beyond those listed in the `allowed_hosts` array.297298 - `allowed_hosts: array of string`299300 Specifies domains the container can reach.301302 - `packages: BetaPackages`303304 Package manager configuration.305306 - `type: optional "packages"`307308 Package configuration type309310 default: packages311312 - `apt: array of string`313314 Ubuntu/Debian packages to install315316 - `cargo: array of string`317318 Rust packages to install319320 - `gem: array of string`321322 Ruby packages to install323324 - `go: array of string`325326 Go packages to install327328 - `npm: array of string`329330 Node.js packages to install331332 - `pip: array of string`333334 Python packages to install335336 - `BetaSelfHostedConfig object`337338 Configuration for self-hosted environments.339340 - `type: "self_hosted"`341342 Environment type343344 - `created_at: string`345346 RFC 3339 timestamp when environment was created347348 - `description: string or null`349350 User-provided description for the environment; null when unset351352 - `metadata: map[string]`353354 User-provided metadata key-value pairs355356 - `name: string`357358 Human-readable name for the environment359360 - `updated_at: string`361362 RFC 3339 timestamp when environment was last updated363364 - `scope: optional "organization" or "account"`365366 The visibility scope for this environment. 'organization' means visible to all accounts. 'account' means visible only to the owning account.367368 - `"organization"`369370 - `"account"`371372## Example373374```bash375curl https://api.anthropic.com/v1/environments \376 -H 'Content-Type: application/json' \377 -H 'anthropic-version: 2023-06-01' \378 -H 'anthropic-beta: managed-agents-2026-04-01' \379 -H "X-Api-Key: $ANTHROPIC_API_KEY" \380 -d '{381 "name": "python-data-analysis",382 "config": {383 "type": "cloud",384 "networking": {385 "type": "limited",386 "allow_package_managers": true,387 "allowed_hosts": [388 "api.example.com"389 ]390 },391 "packages": {392 "pip": [393 "pandas",394 "numpy"395 ]396 }397 },398 "description": "Python environment with data-analysis packages."399 }'400```401402### Response (200)403404```json405{406 "id": "env_011CZkZ9X2dpNyB7HsEFoRfW",407 "archived_at": null,408 "config": {409 "networking": {410 "allow_mcp_servers": false,411 "allow_package_managers": true,412 "allowed_hosts": [413 "api.example.com"414 ],415 "type": "limited"416 },417 "packages": {418 "apt": [419 "string"420 ],421 "cargo": [422 "string"423 ],424 "gem": [425 "string"426 ],427 "go": [428 "string"429 ],430 "npm": [431 "string"432 ],433 "pip": [434 "pandas",435 "numpy"436 ],437 "type": "packages"438 },439 "type": "cloud"440 },441 "created_at": "2026-03-15T10:00:00Z",442 "description": "Python environment with data-analysis packages.",443 "metadata": {},444 "name": "python-data-analysis",445 "type": "environment",446 "updated_at": "2026-03-15T10:00:00Z",447 "scope": "organization"448}449```450