quote_audit
Price a code audit for an ERC-20 on 0G testnet: reads the token's bytecode over RPC (free), asks the auditor for a 402 quote, and runs it past the budget gate. Never pays and never signs — use hire_audit or underwrite to act on the quote.
This record as markdown: /tools/0x402-mcp/quote-audit.md
What quote_audit does on 0x402
AI agents call quote_audit to retrieve information from 0x402 without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
token | string | Yes | ERC-20 contract address on 0G testnet. |
source | string | — | Local Solidity source for the token, if you have it. Never fetched. |
Parameters from the server's own tool schema.
Why quote_audit is rated Low
Even though quote_audit only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsHandles credentials or secrets (token)
Attacks that exploit this kind of access
The rule that runs quote_audit safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 0x402, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For quote_audit, this is the rule to start with:
quote_audit is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect 0x402, apply this rule, and every quote_audit call is checked against it from then on.
Questions about quote_audit
Price a code audit for an ERC-20 on 0G testnet: reads the token's bytecode over RPC (free), asks the auditor for a 402 quote, and runs it past the budget gate. Never pays and never signs — use hire_audit or underwrite to act on the quote. It is categorised as a Read tool in the 0x402 MCP Server, which means it retrieves data without modifying state.
quote_audit accepts 2 parameters: token, source. Required: token. The full parameter table on this page comes from the server's own tool schema.
Register the 0x402 MCP server in PolicyLayer and add a rule for quote_audit: 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 0x402. Nothing to install.
quote_audit 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 quote_audit 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 quote_audit. 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.
quote_audit is provided by the 0x402 MCP server (@0x402/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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