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HomeDocsClaude Code CLI 28 Oct 2026
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Connect Claude Code to tools via MCP changedmcp

Upstream edited this page at 28 Oct 2026 19:51 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 30 Oct 2026 18:07 UTC.

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10351035 
10361036The tabs cover both commands: `claude mcp add` takes your client ID and callback port as flags, and `claude mcp add-json` takes them in an `oauth` object. If you registered a redirect URI, set the callback port to the port in that URI.
10371037 
1038**claude mcp add**
1038> [tab] claude mcp add
1039>
1040> Use `--client-id` to pass your app's client ID. The `--client-secret` flag prompts for the secret with masked input:
1041>
1042> ```bash theme={null}
1043> claude mcp add --transport http \
1044> --client-id your-client-id --client-secret --callback-port 8080 \
1045> my-server https://mcp.example.com/mcp
1046> ```
10391047 
1040Use `--client-id` to pass your app's client ID. The `--client-secret` flag prompts for the secret with masked input:
1048> [tab] claude mcp add-json
1049>
1050> Include the `oauth` object in the JSON config and pass `--client-secret` as a separate flag:
1051>
1052> ```bash theme={null}
1053> claude mcp add-json my-server \
1054> '{"type":"http","url":"https://mcp.example.com/mcp","oauth":{"clientId":"your-client-id","callbackPort":8080}}' \
1055> --client-secret
1056> ```
10411057 
1042```bash theme={null}
1043claude mcp add --transport http \
1044 --client-id your-client-id --client-secret --callback-port 8080 \
1045 my-server https://mcp.example.com/mcp
1046```
1058> [tab] claude mcp add-json (callback port only)
1059>
1060> To fix only the callback port and let Claude Code register the client automatically, set `callbackPort` on its own:
1061>
1062> ```bash theme={null}
1063> claude mcp add-json my-server \
1064> '{"type":"http","url":"https://mcp.example.com/mcp","oauth":{"callbackPort":8080}}'
1065> ```
10471066 
1048**claude mcp add-json**
1049 
1050Include the `oauth` object in the JSON config and pass `--client-secret` as a separate flag:
1051 
1052```bash theme={null}
1053claude mcp add-json my-server \
1054 '{"type":"http","url":"https://mcp.example.com/mcp","oauth":{"clientId":"your-client-id","callbackPort":8080}}' \
1055 --client-secret
1056```
1057 
1058**claude mcp add-json (callback port only)**
1059 
1060To fix only the callback port and let Claude Code register the client automatically, set `callbackPort` on its own:
1061 
1062```bash theme={null}
1063claude mcp add-json my-server \
1064 '{"type":"http","url":"https://mcp.example.com/mcp","oauth":{"callbackPort":8080}}'
1065```
1066 
1067**CI / env var**
1068 
1069Set the secret via environment variable to skip the interactive prompt:
1070 
1071```bash theme={null}
1072MCP_CLIENT_SECRET=your-secret claude mcp add --transport http \
1073 --client-id your-client-id --client-secret --callback-port 8080 \
1074 my-server https://mcp.example.com/mcp
1075```
1067> [tab] CI / env var
1068>
1069> Set the secret via environment variable to skip the interactive prompt:
1070>
1071> ```bash theme={null}
1072> MCP_CLIENT_SECRET=your-secret claude mcp add --transport http \
1073> --client-id your-client-id --client-secret --callback-port 8080 \
1074> my-server https://mcp.example.com/mcp
1075> ```
10761076 
10771077**3. Authenticate in Claude Code**
10781078 
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