Validate JSON text or normalize a JSON value, returning parse status, type, size, and optional formatted output. This deterministic endpoint does not call an upstream model. Pay up to $0.0001 per request with x402 USDC on Base or choose the fixed-price Solana USDC option when advertised. Exact fi...
AI agents call gpt55_json_validate 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 |
|---|---|---|---|
json | object | — | |
text | string | — | |
value | object | — | Any JSON value |
pretty | boolean | — | |
max_output_chars | integer | — | |
include_formatted | boolean | — |
Parameters from the server's own tool schema.
This tool only reads and analyzes JSON input to return metadata (parse status, type, size, formatted output). It is explicitly stated to be deterministic and does not invoke upstream models or trigger side effects. The financial payment aspect (USDC charges) is merely the billing mechanism for API access, not the tool's function itself.
From the tool's definition Tool performs validation and normalization of JSON with deterministic output: 'Validate JSON text or normalize a JSON value, returning parse status, type, size, and optional formatted output.
Attacks that exploit this kind of access
Validate JSON text or normalize a JSON value, returning parse status, type, size, and optional formatted output. This deterministic endpoint does not call an upstream model. Pay up to $0.0001 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_json_validate accepts 6 parameters: json, text, value, pretty, max_output_chars, include_formatted. 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_json_validate: 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_json_validate 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_json_validate 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_json_validate. 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_json_validate 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_json_validate 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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