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1---2title: Create Tunnel3url: https://platform.claude.com/docs/en/api/beta/tunnels/create4---56# Create Tunnel78**POST** `/v1/tunnels`910The Tunnels API is in research preview. It requires the `anthropic-beta: mcp-tunnels-2026-06-22` header and may change without a deprecation period. It supersedes the Admin API endpoints at `/v1/organizations/tunnels`, which remain available during a migration window.1112Creates a tunnel. Creation allocates a fresh hostname and provisions the tunnel; it is not idempotent. The new tunnel rejects MCP traffic until at least one CA certificate is added.1314## Headers1516- `"anthropic-beta": optional array of AnthropicBeta`1718 Optional header to specify the beta version(s) you want to use.1920 - `string`2122 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 43 more`2324 - `"message-batches-2024-09-24"`2526 - `"prompt-caching-2024-07-31"`2728 - `"computer-use-2024-10-22"`2930 - `"computer-use-2025-01-24"`3132 - `"pdfs-2024-09-25"`3334 - `"token-counting-2024-11-01"`3536 - `"token-efficient-tools-2025-02-19"`3738 - `"output-128k-2025-02-19"`3940 - `"files-api-2025-04-14"`4142 - `"mcp-client-2025-04-04"`4344 - `"mcp-client-2025-11-20"`4546 - `"dev-full-thinking-2025-05-14"`4748 - `"interleaved-thinking-2025-05-14"`4950 - `"code-execution-2025-05-22"`5152 - `"extended-cache-ttl-2025-04-11"`5354 - `"context-1m-2025-08-07"`5556 - `"context-management-2025-06-27"`5758 - `"model-context-window-exceeded-2025-08-26"`5960 - `"skills-2025-10-02"`6162 - `"fast-mode-2026-02-01"`6364 - `"output-300k-2026-03-24"`6566 - `"user-profiles-2026-03-24"`6768 - `"user-profiles-2026-08-18"`6970 - `"user-profiles-2026-09-04"`7172 - `"advisor-tool-2026-03-01"`7374 - `"managed-agents-2026-04-01"`7576 - `"cache-diagnosis-2026-04-07"`7778 - `"dreaming-2026-04-21"`7980 - `"thinking-token-count-2026-05-13"`8182 - `"server-side-fallback-2026-06-01"`8384 - `"server-side-fallback-2026-07-01"`8586 - `"fallback-credit-2026-06-01"`8788 - `"fallback-credit-2026-07-01"`8990 - `"agent-memory-2026-07-22"`9192 - `"mid-conversation-tool-changes-2026-07-01"`9394 - `"compact-2026-01-12"`9596 - `"computer-use-2025-11-24"`9798 - `"mcp-tunnels-2026-06-22"`99100 - `"structured-outputs-2025-11-13"`101102 - `"task-budgets-2026-03-13"`103104 - `"thinking-display-updates-2026-08-18"`105106 - `"ce-user-management-2026-07-13"`107108 - `"mid-conversation-output-config-2026-07-01"`109110 - `"thinking-binding-controls-2026-08-01"`111112 - `"mid-conversation-system-clear-at-2026-08-21"`113114 - `"compact-2026-09-04"`115116- `"anthropic-workspace-id": optional string`117118## Body parameters119120- `display_name: optional string or null`121122 Optional human-readable name for the tunnel (1-255 characters).123124 minLength: 1, maxLength: 255125126## Returns127128- `BetaTunnel object`129130 An MCP tunnel.131132 - `type: "tunnel"`133134 - `id: string`135136 Unique identifier for the tunnel, prefixed with `tnl_`.137138 - `archived_at: string or null`139140 A timestamp in RFC 3339 format141142 format: date-time143144 - `created_at: string`145146 A timestamp in RFC 3339 format147148 format: date-time149150 - `display_name: string or null`151152 Human-readable name for the tunnel (1-255 characters). Null if unset.153154 - `domain: string`155156 Anthropic-assigned hostname for the tunnel. MCP server URLs whose host is a subdomain of this value are routed through the tunnel. Globally unique and never reused, even after the tunnel is archived.157158## Example159160```bash161curl https://api.anthropic.com/v1/tunnels \162 -H 'Content-Type: application/json' \163 -H 'anthropic-version: 2023-06-01' \164 -H 'anthropic-beta: mcp-tunnels-2026-06-22' \165 -H "X-Api-Key: $ANTHROPIC_API_KEY" \166 -d '{}'167```168169### Response (200)170171```json172{173 "id": "id",174 "archived_at": "2019-12-27T18:11:19.117Z",175 "created_at": "2019-12-27T18:11:19.117Z",176 "display_name": "display_name",177 "domain": "domain",178 "type": "tunnel"179}180```181