Convert a live HTTP 402 quote into a buyer-owned compatibility adapter for official x402 clients, first-payment clients, MCP runtimes, and wallet agents. Returns requirement selector policy, same-request retry template, header compatibility map, receipt requirements, and stop conditions without p...
AI agents call gpt55_x402_client_compatibility_adapter_get to retrieve information from GPT 5 5 x402 Low Cost Agent Tools without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
url | string | — | |
body | object | — | |
client | string | — | |
method | string | — | |
maxUsdc | number | — | |
runtime | string | — | |
endpoint | string | — | |
max_usdc | number | — | |
resource | string | — | |
timeout_ms | integer | — | |
client_name | string | — | |
expectedAsset | string | — |
Parameters from the server's own tool schema.
The tool fetches and converts a live HTTP 402 quote into a compatibility adapter structure without actually paying or modifying any endpoint — it explicitly states 'without paying the target endpoint.' It is a GET variant that returns informational data (policies, templates, maps).
From the tool's definition 'Returns requirement selector policy, same-request retry template, header compatibility map, receipt requirements, and stop conditions without paying the target endpoint. GET variant for agents that prefer query parameters.'
Risk signalsAccepts URL/endpoint input (url) · Accepts raw HTML/template content (body) · High parameter count (18 properties)
Attacks that exploit this kind of access
Convert a live HTTP 402 quote into a buyer-owned compatibility adapter for official x402 clients, first-payment clients, MCP runtimes, and wallet agents. Returns requirement selector policy, same-request retry template, header compatibility map, receipt requirements, and stop conditions without paying the target endpoint. GET variant for agents that prefer query parameters. Pay up to $0.006 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 Read tool in the GPT 5 5 x402 Low Cost Agent Tools MCP Server, which means it retrieves data without modifying state.
gpt55_x402_client_compatibility_adapter_get accepts 12 parameters: url, body, client, method, maxUsdc, runtime, endpoint, max_usdc, resource, timeout_ms, client_name, expectedAsset. 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_client_compatibility_adapter_get: 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_client_compatibility_adapter_get is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the gpt55_x402_client_compatibility_adapter_get 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_client_compatibility_adapter_get. 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_client_compatibility_adapter_get 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_client_compatibility_adapter_get 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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