list_credit_packs

List the prepaid credit packs the project owner can purchase. Read-only. Identify a pack to start_topup by its eurCents.

SERVEREchoRelay SOURCEhttps://mcp.echorelay.dev

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-echorelay-management/list-credit-packs.md

WHAT IT DOES

What list_credit_packs does on EchoRelay

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

RISK

Why list_credit_packs is rated Low

This tool only queries and lists available credit pack options for informational purposes. It performs no write, execute, destructive, or financial operations—it merely retrieves data. The 'Read-only' designation and listing operation confirm it belongs in the Read category with low severity.

From the tool's definition Tool description explicitly states 'List the prepaid credit packs the project owner can purchase. Read-only.' It retrieves available purchasing options without modifying data or financial state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_credit_packs safely

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

list_credit_packs Allowed

list_credit_packs 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": {
    "list_credit_packs": {}
  }
}

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

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

FAQ

Questions about list_credit_packs

What does the list_credit_packs tool do? +

List the prepaid credit packs the project owner can purchase. Read-only. Identify a pack to start_topup by its eurCents. It is categorised as a Read tool in the EchoRelay MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_credit_packs? +

Register the EchoRelay MCP server in PolicyLayer and add a rule for list_credit_packs: 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 EchoRelay. Nothing to install.

What risk level is list_credit_packs? +

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

Can I rate-limit list_credit_packs? +

Yes. Add a rate_limit block to the list_credit_packs 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 list_credit_packs completely? +

Set action: deny in the PolicyLayer policy for list_credit_packs. 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 list_credit_packs? +

list_credit_packs is provided by the EchoRelay MCP server (https://mcp.echorelay.dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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