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2424- `"anthropic-beta": array of AnthropicBeta`
2525
26 Optional header to specify the beta version(s) you want to use.
26 This endpoint is in beta: requests must send `mcp-tunnels-2026-05-19` in this header.
2727
2828 - `string`
2929
from line 168
168168```bash
169169curl https://api.anthropic.com/v1/organizations/tunnels/$TUNNEL_ID \
170170 -H 'anthropic-version: 2023-06-01' \
171 -H 'anthropic-beta: mcp-tunnels-2026-05-19' \
171172 -H "X-Api-Key: $ANTHROPIC_API_KEY"
172173```
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