# create_subscription

Set up a recurring payment

Agent View of the PolicyLayer registry record for `create_subscription`. HTML page: https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/create-subscription

## Facts

- Tool: `create_subscription`
- Server: MIDAS Protocol (`https://mcp.midasprotocol.org/mcp`) — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol.md
- Homepage: https://github.com/BbrainFrance/Agent_payment_protocol
- Risk category: Financial (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 4 (4 required)
- Recommended policy verdict: Approval-gated

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `amount` | number | yes |  |
| `currency` | string | yes |  |
| `frequency` | string | yes |  |
| `recipientId` | string | yes |  |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "create_subscription",
    "arguments": {
      "amount": 0,
      "currency": "<currency>",
      "frequency": "<frequency>",
      "recipientId": "<recipientId>"
    }
  }
}
```

## Why create_subscription is rated Critical

This tool establishes a recurring financial obligation (subscription payment), which directly commits financial resources on an ongoing basis. It falls squarely in the Financial category, and misuse by an AI agent could result in repeated unauthorized charges, making it critical severity.

From the tool's own definition: "'create_subscription' — 'Set up a recurring payment'"

## Use case

AI agents use create_subscription to commit financial operations through MIDAS Protocol, 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 MIDAS Protocol:

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

## Other tools on MIDAS Protocol (43)

- `accept_bet` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/accept-bet.md
- `accept_negotiation` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/accept-negotiation.md
- `book_and_pay` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/book-and-pay.md
- `borrow` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/borrow.md
- `cancel_subscription` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/cancel-subscription.md
- `counter_offer` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/counter-offer.md
- `create_bet` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/create-bet.md
- `create_contract` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/create-contract.md
- `create_loan_offer` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/create-loan-offer.md
- `fulfill_condition` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/fulfill-condition.md
- `human_approve_negotiation` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/human-approve-negotiation.md
- `reject_negotiation` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/reject-negotiation.md
- `repay_loan` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/repay-loan.md
- `send_payment` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/send-payment.md
- `sign_contract` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/sign-contract.md
- `start_negotiation` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/start-negotiation.md
- `withdraw_usdc` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/withdraw-usdc.md
- `x402_pay` — Financial — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/x402-pay.md
- `blockchain_wallet_info` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/blockchain-wallet-info.md
- `check_balance` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/check-balance.md
- `check_inbox` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/check-inbox.md
- `check_reputation` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/check-reputation.md
- `discover_services` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/discover-services.md
- `get_quote` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/get-quote.md
- `get_service` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/get-service.md
- `list_blocked_agents` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/list-blocked-agents.md
- `list_loan_offers` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/list-loan-offers.md
- `list_open_bets` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/list-open-bets.md
- `my_bets` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/my-bets.md
- `my_contracts` — Read — https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol/my-contracts.md
- …and 13 more: https://policylayer.com/tools/io-github-bbrainfrance-midas-protocol.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=io-github-bbrainfrance-midas-protocol · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-bbrainfrance-midas-protocol