spraay_contract_write

Write contract. Costs $0.01 USDC per call. Provide the listed fields as typed arguments.

SERVERSpraay X402 Mcp SOURCEspraay-x402-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-plagtech-spraay-x402-mcp/spraay-contract-write.md

WHAT IT DOES

What spraay_contract_write does on Spraay X402 Mcp

AI agents use spraay_contract_write to create or update resources in Spraay X402 Mcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Spraay X402 Mcp environment.

RISK

Why spraay_contract_write is rated Medium

This tool creates or modifies smart contract state on Base blockchain. While it has a direct financial cost, the primary function is reversible contract state modification (Write category), not irreversible deletion (Destructive) or money movement (Financial). However, in DeFi contexts, contract writes can have significant financial consequences if misused by an agent.

From the tool's definition Tool name 'spraay_contract_write' and description 'Write contract' indicate data modification. Financial cost ($0.01 USDC per call) and 'crypto payments, DeFi' server context suggest blockchain state changes.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs spraay_contract_write 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_contract_write, this is the rule to start with:

spraay_contract_write Rate-limited

spraay_contract_write stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "spraay_contract_write": {
      "limits": [
        {
          "counter": "spraay_contract_write_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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_contract_write call is checked against it from then on.

FAQ

Questions about spraay_contract_write

What does the spraay_contract_write tool do? +

Write contract. Costs $0.01 USDC per call. Provide the listed fields as typed arguments. It is categorised as a Write tool in the Spraay X402 Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on spraay_contract_write? +

Register the Spraay X402 MCP server in PolicyLayer and add a rule for spraay_contract_write: 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_contract_write? +

spraay_contract_write is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit spraay_contract_write? +

Yes. Add a rate_limit block to the spraay_contract_write 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_contract_write completely? +

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

spraay_contract_write 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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