# cancel_subscription

Schedule the project owner's subscription for cancellation at the end of the current billing period. Returns {kind: 'scheduled', newPlan: 'free', effectiveAt}. Add-ons keep renewing while the plan is active; after it ends they stop renewing and each already-paid add-on cycle stays active until its own end date (use unsubscribe_addon to stop one sooner). Owner-only; requires a token minted with the billing scope.

Agent View of the PolicyLayer registry record for `cancel_subscription`. HTML page: https://policylayer.com/tools/dev-echorelay-management/cancel-subscription

## Facts

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

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

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

## Why cancel_subscription is rated Critical

Cancelling a subscription is a financial operation that ends a billing commitment and downgrades the plan to free. While it is scheduled (not immediate), it irreversibly changes the financial relationship unless explicitly reversed, placing it firmly in the Financial category. Misuse by an AI agent could result in service disruption and loss of paid features for the project owner.

From the tool's own definition: "'Schedule the project owner's subscription for cancellation at the end of the current billing period' and 'requires a token minted with the billing scope' — this tool commits a financial action by terminating a paid subscription plan"

## Use case

AI agents use cancel_subscription to commit financial operations through EchoRelay, usually the final step of a payment, billing, or trading workflow. A call moves real money.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "cancel_subscription": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}
```

## 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
- `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
- `get_receipts` — Read — https://policylayer.com/tools/dev-echorelay-management/get-receipts.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