spraay_free_gas

Gas prices — 7 EVM chains via Alchemy (cached 15s). Free to call. Read-only. Pass any query parameters as a JSON string via the params argument.

SERVERSpraay X402 Mcp SOURCEspraay-x402-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/io-github-plagtech-spraay-x402-mcp/spraay-free-gas.md

WHAT IT DOES

What spraay_free_gas does on Spraay X402 Mcp

AI agents call spraay_free_gas to retrieve information from Spraay X402 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 spraay_free_gas is rated Low

This tool queries current gas price information from external sources (Alchemy) across EVM chains. It performs no mutations, deletions, or financial transactions—it only returns cached pricing data. The read-only nature and informational purpose make it a Read category tool with low severity, as misuse would only expose price information without enabling harmful actions.

From the tool's definition Tool description explicitly states 'Gas prices — 7 EVM chains via Alchemy (cached 15s). Free to call. Read-only.' The 'Read-only' designation and retrieval of gas price data with no side effects confirms this is a data retrieval operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs spraay_free_gas safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Spraay X402 Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For spraay_free_gas, this is the rule to start with:

spraay_free_gas Allowed

spraay_free_gas 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": {
    "spraay_free_gas": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Spraay X402 Mcp, apply this rule, and every spraay_free_gas call is checked against it from then on.

FAQ

Questions about spraay_free_gas

What does the spraay_free_gas tool do? +

Gas prices — 7 EVM chains via Alchemy (cached 15s). Free to call. Read-only. Pass any query parameters as a JSON string via the params argument. It is categorised as a Read tool in the Spraay X402 Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on spraay_free_gas? +

Register the Spraay X402 MCP server in PolicyLayer and add a rule for spraay_free_gas: 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 Spraay X402 Mcp. Nothing to install.

What risk level is spraay_free_gas? +

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

Can I rate-limit spraay_free_gas? +

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

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

spraay_free_gas is provided by the Spraay X402 MCP server (spraay-x402-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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