x402_payment_fraud_detector
Risk-focused tool that analyzes x402-USDC payment transactions for fraud patterns using on-chain forensics. Takes a transaction hash or wallet address as input and returns risk scores, suspicious indicators, and historical patterns. Designed for risk management teams to quickly assess payment leg...
This record as markdown: /tools/io-github-getgapup-gapup-mcp/x402-payment-fraud-detector.md
What x402_payment_fraud_detector does on Gapup Mcp
AI agents call x402_payment_fraud_detector to retrieve information from Gapup Mcp 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 |
|---|---|---|---|
async | boolean | — | If true, returns a job_id immediately (<200ms) instead of waiting for the result. Poll the result with job_result(job_id). Use for slow tools to avoid client ti |
walletAddress | string | — | |
includeHistory | boolean | — | |
amountThreshold | number | — | |
transactionHash | string | Yes |
Parameters from the server's own tool schema.
Why x402_payment_fraud_detector is rated Low
This tool reads and analyzes on-chain transaction data, performing forensic lookups and returning risk assessments. It does not move money, execute transactions, or modify data — it only queries blockchain data and returns read-only analytical results.
From the tool's definition analyzes x402-USDC payment transactions for fraud patterns...returns risk scores, suspicious indicators, and historical patterns
Attacks that exploit this kind of access
The rule that runs x402_payment_fraud_detector safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Gapup Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For x402_payment_fraud_detector, this is the rule to start with:
x402_payment_fraud_detector 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 Gapup Mcp, apply this rule, and every x402_payment_fraud_detector call is checked against it from then on.
Questions about x402_payment_fraud_detector
Risk-focused tool that analyzes x402-USDC payment transactions for fraud patterns using on-chain forensics. Takes a transaction hash or wallet address as input and returns risk scores, suspicious indicators, and historical patterns. Designed for risk management teams to quickly assess payment legitimacy. Includes keywords: fraud detection, USDC risk, blockchain forensics, transaction monitoring. pass async:true to avoid timeout. It is categorised as a Read tool in the Gapup Mcp MCP Server, which means it retrieves data without modifying state.
x402_payment_fraud_detector accepts 5 parameters: async, walletAddress, includeHistory, amountThreshold, transactionHash. Required: transactionHash. The full parameter table on this page comes from the server's own tool schema.
Register the Gapup MCP server in PolicyLayer and add a rule for x402_payment_fraud_detector: 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 Gapup Mcp. Nothing to install.
x402_payment_fraud_detector 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 x402_payment_fraud_detector 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 x402_payment_fraud_detector. 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.
x402_payment_fraud_detector is provided by the Gapup MCP server (https://mcp.gapup.io/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Gapup, and thousands of servers like it.
This server
Across the catalogue