util_evm_signature_v_classify

SERVERDelx Mcp A2a SOURCEhttps://api.delx.ai/v1/mcp

Low RISK CLASS

Category Read

Parameters 22 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-davidmosiah-delx-mcp-a2a/util-evm-signature-v-classify.md

WHAT IT DOES

What util_evm_signature_v_classify does on Delx Mcp A2a

AI agents call util_evm_signature_v_classify to retrieve information from Delx Mcp A2a 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
`v`	integer	Yes	V supplied to EVM Signature V Classify; used only for this bounded calculation and processed in memory without retention.
`chain_id`	integer	Yes	Chain Id supplied to EVM Signature V Classify; used only for this bounded calculation and processed in memory without retention.

Parameters from the server's own tool schema.

RISK

Why util_evm_signature_v_classify is rated Low

Even though util_evm_signature_v_classify 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.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs util_evm_signature_v_classify safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Delx Mcp A2a, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For util_evm_signature_v_classify, this is the rule to start with:

util_evm_signature_v_classify Allowed

util_evm_signature_v_classify 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": {
    "util_evm_signature_v_classify": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Delx Mcp A2a, apply this rule, and every util_evm_signature_v_classify call is checked against it from then on.

FAQ

Questions about util_evm_signature_v_classify

What does the util_evm_signature_v_classify tool do? +

EVM Signature V Classify classifies common signature recovery and EIP-155 v values from bounded caller-supplied values without an external provider. Call EVM Signature V Classify before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Signature V Classify as versioned deterministic JSON. Limitation: Uses caller-supplied values only; it performs no RPC call, signing, broadcasting, balance lookup, custody, trading, or live-chain claim. It is categorised as a Read tool in the Delx Mcp A2a MCP Server, which means it retrieves data without modifying state.

What parameters does util_evm_signature_v_classify accept? +

util_evm_signature_v_classify accepts 2 parameters: v, chain_id. Required: v, chain_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on util_evm_signature_v_classify? +

Register the Delx Mcp A2a MCP server in PolicyLayer and add a rule for util_evm_signature_v_classify: 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 Delx Mcp A2a. Nothing to install.

What risk level is util_evm_signature_v_classify? +

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

Can I rate-limit util_evm_signature_v_classify? +

Yes. Add a rate_limit block to the util_evm_signature_v_classify 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 util_evm_signature_v_classify completely? +

Set action: deny in the PolicyLayer policy for util_evm_signature_v_classify. 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 util_evm_signature_v_classify? +

util_evm_signature_v_classify is provided by the Delx Mcp A2a MCP server (https://api.delx.ai/v1/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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