sign_contract

Sign a contract as counterparty to activate it

SERVERMIDAS Protocol SOURCEhttps://mcp.midasprotocol.org/mcp

Critical RISK CLASS

Category Financial

Parameters 11 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-bbrainfrance-midas-protocol/sign-contract.md

WHAT IT DOES

What sign_contract does on MIDAS Protocol

AI agents use sign_contract to commit financial operations through MIDAS Protocol, usually the final step of a payment, billing, or trading workflow. A call moves real money.

Parameter	Type	Required	Description
`contractId`	string	Yes

Parameters from the server's own tool schema.

RISK

Why sign_contract is rated Critical

Signing a contract as a counterparty activates it, creating legally and/or financially binding obligations. On a financial infrastructure platform (payments, lending, escrow), this tool can commit the agent to loan agreements, payment obligations, escrow terms, or other financial contracts — making it a Financial category tool with critical severity due to the irreversible and potentially large-scale financial…

From the tool's definition Sign a contract as counterparty to activate it

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sign_contract safely

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

sign_contract Approval-gated

Any call to sign_contract is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sign_contract": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect MIDAS Protocol, apply this rule, and every sign_contract call is checked against it from then on.

FAQ

Questions about sign_contract

What does the sign_contract tool do? +

Sign a contract as counterparty to activate it. It is categorised as a Financial tool in the MIDAS Protocol MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

What parameters does sign_contract accept? +

sign_contract accepts 1 parameter: contractId. Required: contractId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on sign_contract? +

Register the MIDAS Protocol MCP server in PolicyLayer and add a rule for sign_contract: 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 MIDAS Protocol. Nothing to install.

What risk level is sign_contract? +

sign_contract is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit sign_contract? +

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

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

sign_contract is provided by the MIDAS Protocol MCP server (https://mcp.midasprotocol.org/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on MIDAS Protocol, and thousands of servers like it.

This server

All 44 MIDAS Protocol tools → Critical-risk tools on this server →

Across the catalogue

create_contract_payment on AdButler → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →