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On-Call API › Slack

Set the default Slack channel

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MCP server URL

https://docs-dev.evohub.io/mcp

Add to CursorAdd to VS Code

Claude Code

claude mcp add --transport http evohub-docs-docs https://docs-dev.evohub.io/mcp

Claude (claude.ai and Claude Desktop): Settings → Connectors → Add custom connector, and paste the URL above.

Claude Desktop — claude_desktop_config.json

{
  "mcpServers": {
    "evohub-docs-docs": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://docs-dev.evohub.io/mcp"
      ]
    }
  }
}

Cursor — ~/.cursor/mcp.json

{
  "mcpServers": {
    "evohub-docs-docs": {
      "url": "https://docs-dev.evohub.io/mcp"
    }
  }
}

VS Code — .vscode/mcp.json

{
  "servers": {
    "evohub-docs-docs": {
      "type": "http",
      "url": "https://docs-dev.evohub.io/mcp"
    }
  }
}

llms.txtllms-full.txt

PUT/api/v1/slack/default-channel

Sets the channel every alert is posted to. channel_id is Slack's channel id (capital letters and digits); channel_name is kept only to display it and a leading # is dropped. An empty channel_id clears the default.

Permission (API-key scope): oncall:settings:write.

Authorization

Any one of:

Request body required

Content type: application/json

Type: object

  • channel_id string
    Max length: 32
  • channel_name string
    Max length: 200

Responses

200

The default channel.

Content type: application/json

Type: object

  • data object required
    • default_channel_id string
    • default_channel_name string
  • success boolean required
    Value: true

400

The body is not JSON (INVALID_REQUEST), or the channel id or name is malformed (VALIDATION_ERROR).

Content type: application/json

Type: Error

  • error object required
    • code string required
      Machine-readable code. Branch on this.
    • message string required
      Human-readable explanation.

401

No API key was sent, or it is unknown, revoked or expired (UNAUTHORIZED).

Content type: application/json

Type: Error

  • error object required
    • code string required
      Machine-readable code. Branch on this.
    • message string required
      Human-readable explanation.

403

The key lacks the scope this endpoint needs (FORBIDDEN).

Content type: application/json

Type: Error

  • error object required
    • code string required
      Machine-readable code. Branch on this.
    • message string required
      Human-readable explanation.

409

Slack is not connected (SLACK_NOT_CONNECTED).

Content type: application/json

Type: Error

  • error object required
    • code string required
      Machine-readable code. Branch on this.
    • message string required
      Human-readable explanation.

429

Too many requests (RATE_LIMITED). Wait Retry-After seconds.

Headers

  • Retry-After integer
    Seconds to wait.

Content type: application/json

Type: Error

  • error object required
    • code string required
      Machine-readable code. Branch on this.
    • message string required
      Human-readable explanation.

500

Something went wrong on EvoHub's side (INTERNAL_ERROR). Retry later.

Content type: application/json

Type: Error

  • error object required
    • code string required
      Machine-readable code. Branch on this.
    • message string required
      Human-readable explanation.

Example request

curl -X PUT 'https://evohub.io/api/v1/slack/default-channel' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <TOKEN>' \
  -d '{
  "channel_id": "C0123ABCD",
  "channel_name": "#alerts"
}'

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