# check_payment

Check whether a payment invoice has been fulfilled by querying the chain

Agent View of the PolicyLayer registry record for `check_payment`. HTML page: https://policylayer.com/tools/nirholas-agenti/check-payment

## Facts

- Tool: `check_payment`
- Server: Agenti (`nirholas/agenti`) — https://policylayer.com/tools/nirholas-agenti.md
- Homepage: https://github.com/nirholas/agenti
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- 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": "check_payment",
    "arguments": {}
  }
}
```

## Why check_payment is rated Low

The tool performs a passive lookup/query of blockchain state to verify payment status. Despite the financial context (payment domain), the tool itself does not move money, execute transactions, or modify data. It is purely informational retrieval. Severity is low because misuse would only return incorrect information, not cause financial harm or irreversible damage.

From the tool's own definition: "Tool description states 'Check whether a payment invoice has been fulfilled by querying the chain' — a read-only query operation with no modifications or state changes."

## Use case

AI agents call check_payment to retrieve information from Agenti 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 Agenti:

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

## Other tools on Agenti (72)

- `binance_cancel_order` — Destructive — https://policylayer.com/tools/nirholas-agenti/binance-cancel-order.md
- `sign_message` — Execute — https://policylayer.com/tools/nirholas-agenti/sign-message.md
- `agenti_pay` — Financial — https://policylayer.com/tools/nirholas-agenti/agenti-pay.md
- `agenti_receive` — Financial — https://policylayer.com/tools/nirholas-agenti/agenti-receive.md
- `binance_place_order` — Financial — https://policylayer.com/tools/nirholas-agenti/binance-place-order.md
- `bitrefill_check_order` — Financial — https://policylayer.com/tools/nirholas-agenti/bitrefill-check-order.md
- `bitrefill_create_invoice` — Financial — https://policylayer.com/tools/nirholas-agenti/bitrefill-create-invoice.md
- `bnb_swap` — Financial — https://policylayer.com/tools/nirholas-agenti/bnb-swap.md
- `bnb_transfer` — Financial — https://policylayer.com/tools/nirholas-agenti/bnb-transfer.md
- `create_invoice` — Financial — https://policylayer.com/tools/nirholas-agenti/create-invoice.md
- `gmgn_copy_trade` — Financial — https://policylayer.com/tools/nirholas-agenti/gmgn-copy-trade.md
- `jupiter_swap` — Financial — https://policylayer.com/tools/nirholas-agenti/jupiter-swap.md
- `pay` — Financial — https://policylayer.com/tools/nirholas-agenti/pay.md
- `pump_buy` — Financial — https://policylayer.com/tools/nirholas-agenti/pump-buy.md
- `pump_sell` — Financial — https://policylayer.com/tools/nirholas-agenti/pump-sell.md
- `solana_deploy_token` — Financial — https://policylayer.com/tools/nirholas-agenti/solana-deploy-token.md
- `solana_stake` — Financial — https://policylayer.com/tools/nirholas-agenti/solana-stake.md
- `solana_swap` — Financial — https://policylayer.com/tools/nirholas-agenti/solana-swap.md
- `solana_transfer` — Financial — https://policylayer.com/tools/nirholas-agenti/solana-transfer.md
- `derive_wallet` — Other — https://policylayer.com/tools/nirholas-agenti/derive-wallet.md
- `generate_mnemonic` — Other — https://policylayer.com/tools/nirholas-agenti/generate-mnemonic.md
- `agenti_balance` — Read — https://policylayer.com/tools/nirholas-agenti/agenti-balance.md
- `binance_get_24h_stats` — Read — https://policylayer.com/tools/nirholas-agenti/binance-get-24h-stats.md
- `binance_get_account` — Read — https://policylayer.com/tools/nirholas-agenti/binance-get-account.md
- `binance_get_klines` — Read — https://policylayer.com/tools/nirholas-agenti/binance-get-klines.md
- `binance_get_open_orders` — Read — https://policylayer.com/tools/nirholas-agenti/binance-get-open-orders.md
- `binance_get_orderbook` — Read — https://policylayer.com/tools/nirholas-agenti/binance-get-orderbook.md
- `binance_get_price` — Read — https://policylayer.com/tools/nirholas-agenti/binance-get-price.md
- `binance_get_top_symbols` — Read — https://policylayer.com/tools/nirholas-agenti/binance-get-top-symbols.md
- `binance_get_trade_history` — Read — https://policylayer.com/tools/nirholas-agenti/binance-get-trade-history.md
- …and 42 more: https://policylayer.com/tools/nirholas-agenti.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`

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