Premium release engineering agent for paid x402 APIs. It returns contract test matrix, Playwright probe plan, CI gate config, fixture bodies, receipt assertions, and rollback criteria before public launch. Pay up to $11.90 per request with x402 USDC on Base or choose the fixed-price Solana USDC o...
AI agents use gpt55_x402_paid_api_contract_test_suite 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 | Description |
|---|---|---|---|
method | string | — | |
endpoint | string | — | |
receipts | array | — | |
use_case | string | — | |
buyer_team | string | — | |
paid_route | string | — | |
service_url | string | — | |
settled_24h | number | — | |
vendor_name | string | — | |
buyer_runtime | string | — | |
expected_asset | string | — | |
wallet_env_var | string | — |
Parameters from the server's own tool schema.
This tool explicitly triggers real cryptocurrency payments (USDC on Base or Solana) of up to $11.90 per request. It commits financial obligations on behalf of the caller, placing it firmly in the Financial category. Misuse by an AI agent could result in repeated high-value payments, making the blast radius critical.
From the tool's definition Pay up to $11.90 per request with x402 USDC on Base or choose the fixed-price Solana USDC option
Risk signalsAccepts URL/endpoint input (endpoint) · High parameter count (20 properties)
Attacks that exploit this kind of access
Premium release engineering agent for paid x402 APIs. It returns contract test matrix, Playwright probe plan, CI gate config, fixture bodies, receipt assertions, and rollback criteria before public launch. Pay up to $11.90 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.
gpt55_x402_paid_api_contract_test_suite accepts 12 parameters: method, endpoint, receipts, use_case, buyer_team, paid_route, service_url, settled_24h, vendor_name, buyer_runtime, expected_asset, wallet_env_var. The full parameter table on this page comes from the server's own tool schema.
Register the GPT 5 5 x402 Low Cost Agent Tools MCP server in PolicyLayer and add a rule for gpt55_x402_paid_api_contract_test_suite: 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.
gpt55_x402_paid_api_contract_test_suite is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the gpt55_x402_paid_api_contract_test_suite 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.
Set action: deny in the PolicyLayer policy for gpt55_x402_paid_api_contract_test_suite. 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.
gpt55_x402_paid_api_contract_test_suite 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.
gpt55_x402_paid_api_contract_test_suite is one line of GPT 5 5 x402 Low Cost Agent Tools's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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