Claude Platform Docs

List Tunnel Certificates

beta.tunnels.certificates.list(strtunnel_id, CertificateListParams**kwargs) -> SyncPageCursor[BetaTunnelCertificate]
GET/v1/tunnels/{tunnel_id}/certificates

The 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.

Lists the certificates registered on a tunnel. Archived certificates are excluded unless include_archived is set.

Parameters
tunnel_id: str
include_archived: Optional[bool]

Whether to include archived certificates in the results. Defaults to false.

limit: Optional[int]

Maximum number of certificates to return per page. Defaults to 20, maximum 1000.

formatint32
page: Optional[str]

Opaque pagination cursor from a previous list_tunnel_certificates response.

betas: Optional[List[AnthropicBetaParam]]

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

One of the following:
str
Literal["message-batches-2024-09-24", "prompt-caching-2024-07-31", "computer-use-2024-10-22", 38 more]
One of the following:
"message-batches-2024-09-24"
"prompt-caching-2024-07-31"
"computer-use-2024-10-22"
"computer-use-2025-01-24"
"pdfs-2024-09-25"
"token-counting-2024-11-01"
"token-efficient-tools-2025-02-19"
"output-128k-2025-02-19"
"files-api-2025-04-14"
"mcp-client-2025-04-04"
"mcp-client-2025-11-20"
"dev-full-thinking-2025-05-14"
"interleaved-thinking-2025-05-14"
"code-execution-2025-05-22"
"extended-cache-ttl-2025-04-11"
"context-1m-2025-08-07"
"context-management-2025-06-27"
"model-context-window-exceeded-2025-08-26"
"skills-2025-10-02"
"fast-mode-2026-02-01"
"output-300k-2026-03-24"
"user-profiles-2026-03-24"
"user-profiles-2026-08-18"
"advisor-tool-2026-03-01"
"managed-agents-2026-04-01"
"cache-diagnosis-2026-04-07"
"dreaming-2026-04-21"
"thinking-token-count-2026-05-13"
"server-side-fallback-2026-06-01"
"server-side-fallback-2026-07-01"
"fallback-credit-2026-06-01"
"fallback-credit-2026-07-01"
"agent-memory-2026-07-22"
"mid-conversation-tool-changes-2026-07-01"
"compact-2026-01-12"
"computer-use-2025-11-24"
"mcp-tunnels-2026-06-22"
"structured-outputs-2025-11-13"
"task-budgets-2026-03-13"
"thinking-display-updates-2026-08-18"
"ce-user-management-2026-07-13"
Returns
class BetaTunnelCertificate:

A CA certificate attached to a tunnel.

id: str

Unique identifier for the certificate, prefixed with tcrt_.

archived_at: Optional[datetime]

A timestamp in RFC 3339 format

formatdate-time
created_at: datetime

A timestamp in RFC 3339 format

formatdate-time
expires_at: Optional[datetime]

A timestamp in RFC 3339 format

formatdate-time
fingerprint: str

Lowercase hex SHA-256 fingerprint of the certificate's DER encoding.

tunnel_id: str

ID of the tunnel the certificate is registered against.

type: Literal["tunnel_certificate"]

List Tunnel Certificates

import os
from anthropic import Anthropic

client = Anthropic(
    api_key=os.environ.get(
        "ANTHROPIC_API_KEY"
    ),  # This is the default and can be omitted
)
page = client.beta.tunnels.certificates.list(
    tunnel_id="tunnel_id",
)
page = page.data[0]
print(page.id)
{
  "data": [
    {
      "id": "id",
      "archived_at": "2019-12-27T18:11:19.117Z",
      "created_at": "2019-12-27T18:11:19.117Z",
      "expires_at": "2019-12-27T18:11:19.117Z",
      "fingerprint": "fingerprint",
      "tunnel_id": "tunnel_id",
      "type": "tunnel_certificate"
    }
  ],
  "next_page": "next_page"
}
Returns Examples
{
  "data": [
    {
      "id": "id",
      "archived_at": "2019-12-27T18:11:19.117Z",
      "created_at": "2019-12-27T18:11:19.117Z",
      "expires_at": "2019-12-27T18:11:19.117Z",
      "fingerprint": "fingerprint",
      "tunnel_id": "tunnel_id",
      "type": "tunnel_certificate"
    }
  ],
  "next_page": "next_page"
}