x402_verify_offer

Verify a server-signed x402 offer before paying. Pass the full

SERVERTenzro Ledger MCP SOURCEhttps://canton-mcp.tenzro.network/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/network-tenzro-tenzro/x402-verify-offer.md

WHAT IT DOES

What x402_verify_offer does on Tenzro Ledger MCP

AI agents call x402_verify_offer to retrieve information from Tenzro Ledger MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why x402_verify_offer is rated Low

The tool verifies/validates an offer prior to payment — it is a read/check operation, not the payment itself. However, it exists in a financial context (payment flow) and misuse or bypass could enable fraudulent payments, hence medium severity. Confidence is moderate because the description is truncated ('Pass the full') and full behavior is unclear.

From the tool's definition Verify a server-signed x402 offer before paying

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs x402_verify_offer safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Tenzro Ledger MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For x402_verify_offer, this is the rule to start with:

x402_verify_offer Allowed

x402_verify_offer is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "x402_verify_offer": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Tenzro Ledger MCP, apply this rule, and every x402_verify_offer call is checked against it from then on.

FAQ

Questions about x402_verify_offer

What does the x402_verify_offer tool do? +

Verify a server-signed x402 offer before paying. Pass the full. It is categorised as a Read tool in the Tenzro Ledger MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on x402_verify_offer? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for x402_verify_offer: 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 Tenzro Ledger MCP. Nothing to install.

What risk level is x402_verify_offer? +

x402_verify_offer is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit x402_verify_offer? +

Yes. Add a rate_limit block to the x402_verify_offer 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.

How do I block x402_verify_offer completely? +

Set action: deny in the PolicyLayer policy for x402_verify_offer. 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.

What MCP server provides x402_verify_offer? +

x402_verify_offer is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Tenzro Ledger, and thousands of servers like it.

This server

All 360 Tenzro Ledger tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →