gpt55_balance_topup

SERVERGPT 5 5 x402 Low Cost Agent Tools SOURCEhttps://gpt55.558686.xyz/mcp

Critical RISK CLASS

Category Financial

Parameters 60 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/xyz-558686-gpt55-token-gateway/gpt55-balance-topup.md

WHAT IT DOES

What gpt55_balance_topup does on GPT 5 5 x402 Low Cost Agent Tools

AI agents use gpt55_balance_topup to commit financial operations through GPT 5 5 x402 Low Cost Agent Tools, usually the final step of a payment, billing, or trading workflow. A call moves real money.

Parameter	Type	Required
`topupUsd`	number	—
`accountId`	string	—
`requestId`	string	—
`topup_usd`	number	—
`account_id`	string	—
`request_id`	string	—

Parameters from the server's own tool schema.

RISK

Why gpt55_balance_topup is rated Critical

This tool moves real money (USDC stablecoin on Base/Solana blockchain) to top up a prepaid balance account. It directly commits financial transactions, making it a Financial category tool. Misuse by an AI agent could result in unauthorized cryptocurrency payments, hence high severity.

From the tool's definition Top up a GPT55 prepaid balance account with x402 exact USDC...Pay up to $0.005 per request with x402 USDC on Base or choose the fixed-price Solana USDC option

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gpt55_balance_topup safely

PolicyLayer is an MCP gateway: it sits between your AI agents and GPT 5 5 x402 Low Cost Agent Tools, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gpt55_balance_topup, this is the rule to start with:

gpt55_balance_topup Approval-gated

Any call to gpt55_balance_topup is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gpt55_balance_topup": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect GPT 5 5 x402 Low Cost Agent Tools, apply this rule, and every gpt55_balance_topup call is checked against it from then on.

FAQ

Questions about gpt55_balance_topup

What does the gpt55_balance_topup tool do? +

Top up a GPT55 prepaid balance account with x402 exact USDC before using balance-metered GPT-5.5 chat. Pay up to $0.005 per request with x402 USDC on Base or choose the fixed-price Solana USDC option when advertised. Exact fixed-price payment and Base upto token-metered payment are both accepted when clients support them; upto settlements use actual response usage, a 0.0001 minimum, and the selected tier price as the cap. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json. It is categorised as a Financial tool in the GPT 5 5 x402 Low Cost Agent Tools MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

What parameters does gpt55_balance_topup accept? +

gpt55_balance_topup accepts 6 parameters: topupUsd, accountId, requestId, topup_usd, account_id, request_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on gpt55_balance_topup? +

Register the GPT 5 5 x402 Low Cost Agent Tools MCP server in PolicyLayer and add a rule for gpt55_balance_topup: 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 GPT 5 5 x402 Low Cost Agent Tools. Nothing to install.

What risk level is gpt55_balance_topup? +

gpt55_balance_topup is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit gpt55_balance_topup? +

Yes. Add a rate_limit block to the gpt55_balance_topup 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 gpt55_balance_topup completely? +

Set action: deny in the PolicyLayer policy for gpt55_balance_topup. 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 gpt55_balance_topup? +

gpt55_balance_topup is provided by the GPT 5 5 x402 Low Cost Agent Tools MCP server (https://gpt55.558686.xyz/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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