Low Risk

vaultfire_verify_agent

Full trust verification for an AI agent address: checks on-chain identity (ERC-8004), partnership bonds, Street Cred score (0-95), reputation data, and cross-chain bridge recognition. Returns a trusted/untrusted verdict with reason. Use this before interacting with an unknown agent.

Part of the Vaultfire Trust Protocol MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents call vaultfire_verify_agent to retrieve information from Vaultfire Trust Protocol without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though vaultfire_verify_agent only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

vaultfire-trust-protocol.yaml
tools:
  vaultfire_verify_agent:
    rules:
      - action: allow

See the full Vaultfire Trust Protocol policy for all 7 tools.

Tool Name vaultfire_verify_agent
Category Read
Risk Level Low

Agents calling read-class tools like vaultfire_verify_agent have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

What does the vaultfire_verify_agent tool do? +

Full trust verification for an AI agent address: checks on-chain identity (ERC-8004), partnership bonds, Street Cred score (0-95), reputation data, and cross-chain bridge recognition. Returns a trusted/untrusted verdict with reason. Use this before interacting with an unknown agent.. It is categorised as a Read tool in the Vaultfire Trust Protocol MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on vaultfire_verify_agent? +

Add a rule in your Intercept YAML policy under the tools section for vaultfire_verify_agent. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Vaultfire Trust Protocol MCP server.

What risk level is vaultfire_verify_agent? +

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

Can I rate-limit vaultfire_verify_agent? +

Yes. Add a rate_limit block to the vaultfire_verify_agent rule in your Intercept 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 vaultfire_verify_agent completely? +

Set action: deny in the Intercept policy for vaultfire_verify_agent. 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 vaultfire_verify_agent? +

vaultfire_verify_agent is provided by the Vaultfire Trust Protocol MCP server (@vaultfire/mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.

Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.

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