# list_active_addons

List the project owners currently-active add-ons. Returns [{addonKey, project, monthlyEurCents, activatedAt, nextRenewalAt, consecutiveFailures}, ...]. RPM upgrades are per-project; project is the slug they apply to (null for account-wide add-ons). Owner-only; requires a token minted with the billing scope.

Agent View of the PolicyLayer registry record for `list_active_addons`. HTML page: https://policylayer.com/tools/dev-echorelay-management/list-active-addons

## Facts

- Tool: `list_active_addons`
- Server: EchoRelay (`https://mcp.echorelay.dev`) — https://policylayer.com/tools/dev-echorelay-management.md
- Homepage: https://github.com/https://mcp.echorelay.dev
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_active_addons",
    "arguments": {}
  }
}
```

## Why list_active_addons is rated Low

This tool retrieves sensitive financial and billing information (addon details, pricing in EUR cents, renewal dates). While it performs no destructive, write, or execute operations, the information returned (billing status, addon keys, renewal schedule) is sensitive enough to warrant medium severity if exposed to an unauthorized agent.

From the tool's own definition: "The tool description explicitly states 'List the project owner's currently-active add-ons' and 'Returns [...]', indicating it retrieves and queries billing/addon data without modification. It is read-only in nature."

## Use case

AI agents call list_active_addons 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.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches EchoRelay:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_active_addons": {}
  }
}
```

## Other tools on EchoRelay (77)

- `cancel_line_publish` — Destructive — https://policylayer.com/tools/dev-echorelay-management/cancel-line-publish.md
- `delete_credential` — Destructive — https://policylayer.com/tools/dev-echorelay-management/delete-credential.md
- `delete_endpoint` — Destructive — https://policylayer.com/tools/dev-echorelay-management/delete-endpoint.md
- `delete_line` — Destructive — https://policylayer.com/tools/dev-echorelay-management/delete-line.md
- `discard_dlq_entry` — Destructive — https://policylayer.com/tools/dev-echorelay-management/discard-dlq-entry.md
- `discard_draft_endpoint` — Destructive — https://policylayer.com/tools/dev-echorelay-management/discard-draft-endpoint.md
- `discard_line_draft` — Destructive — https://policylayer.com/tools/dev-echorelay-management/discard-line-draft.md
- `remove_member` — Destructive — https://policylayer.com/tools/dev-echorelay-management/remove-member.md
- `revoke_api_key` — Destructive — https://policylayer.com/tools/dev-echorelay-management/revoke-api-key.md
- `revoke_project_token` — Destructive — https://policylayer.com/tools/dev-echorelay-management/revoke-project-token.md
- `rollback_config` — Destructive — https://policylayer.com/tools/dev-echorelay-management/rollback-config.md
- `dry_run_endpoint` — Execute — https://policylayer.com/tools/dev-echorelay-management/dry-run-endpoint.md
- `duplicate_line` — Execute — https://policylayer.com/tools/dev-echorelay-management/duplicate-line.md
- `cancel_subscription` — Financial — https://policylayer.com/tools/dev-echorelay-management/cancel-subscription.md
- `change_plan` — Financial — https://policylayer.com/tools/dev-echorelay-management/change-plan.md
- `downgrade_addon` — Financial — https://policylayer.com/tools/dev-echorelay-management/downgrade-addon.md
- `retry_dlq_entry` — Financial — https://policylayer.com/tools/dev-echorelay-management/retry-dlq-entry.md
- `start_subscription` — Financial — https://policylayer.com/tools/dev-echorelay-management/start-subscription.md
- `start_topup` — Financial — https://policylayer.com/tools/dev-echorelay-management/start-topup.md
- `subscribe_addon` — Financial — https://policylayer.com/tools/dev-echorelay-management/subscribe-addon.md
- `unsubscribe_addon` — Financial — https://policylayer.com/tools/dev-echorelay-management/unsubscribe-addon.md
- `default_endpoint_template` — Read — https://policylayer.com/tools/dev-echorelay-management/default-endpoint-template.md
- `get_billing` — Read — https://policylayer.com/tools/dev-echorelay-management/get-billing.md
- `get_config` — Read — https://policylayer.com/tools/dev-echorelay-management/get-config.md
- `get_dlq_entry` — Read — https://policylayer.com/tools/dev-echorelay-management/get-dlq-entry.md
- `get_endpoint` — Read — https://policylayer.com/tools/dev-echorelay-management/get-endpoint.md
- `get_key_policy` — Read — https://policylayer.com/tools/dev-echorelay-management/get-key-policy.md
- `get_line_draft` — Read — https://policylayer.com/tools/dev-echorelay-management/get-line-draft.md
- `get_metrics` — Read — https://policylayer.com/tools/dev-echorelay-management/get-metrics.md
- `get_project` — Read — https://policylayer.com/tools/dev-echorelay-management/get-project.md
- …and 47 more: https://policylayer.com/tools/dev-echorelay-management.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=dev-echorelay-management · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/dev-echorelay-management