segment_list_sources

List all Segment sources in a workspace using the Segment Public API.

SERVERUnClick SOURCE@unclick/mcp-server

Low RISK CLASS

Category Read

Parameters 22 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/segment-list-sources.md

WHAT IT DOES

What segment_list_sources does on UnClick

AI agents call segment_list_sources to retrieve information from UnClick without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`api_key`	string	Yes	Segment Public API token
`workspace_id`	string	Yes	Segment workspace ID

Parameters from the server's own tool schema.

RISK

Why segment_list_sources is rated Low

This tool queries and retrieves Segment data sources from a workspace. It performs a read-only API call to enumerate existing sources, returning information only. There are no side effects, data modification, deletion, code execution, or financial implications.

From the tool's definition Tool name contains 'list' and description states 'List all Segment sources' — a retrieval operation with no modification capability.

Risk signalsHandles credentials or secrets (api_key)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs segment_list_sources safely

PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For segment_list_sources, this is the rule to start with:

segment_list_sources Allowed

segment_list_sources is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "segment_list_sources": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every segment_list_sources call is checked against it from then on.

FAQ

Questions about segment_list_sources

What does the segment_list_sources tool do? +

List all Segment sources in a workspace using the Segment Public API. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.

What parameters does segment_list_sources accept? +

segment_list_sources accepts 2 parameters: api_key, workspace_id. Required: api_key, workspace_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on segment_list_sources? +

Register the UnClick MCP server in PolicyLayer and add a rule for segment_list_sources: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches UnClick. Nothing to install.

What risk level is segment_list_sources? +

segment_list_sources is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit segment_list_sources? +

Yes. Add a rate_limit block to the segment_list_sources rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block segment_list_sources completely? +

Set action: deny in the PolicyLayer policy for segment_list_sources. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides segment_list_sources? +

segment_list_sources is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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