Medium Risk

printr_sign_and_submit_evm

Sign and submit an EVM transaction payload returned by printr_create_token. If no private_key is provided, the user will be prompted to select or provision a wallet. Returns the transaction hash and receipt once confirmed. After successful confirmation, present the trade page URL to the user: htt...

Accepts raw HTML/template content (payload); Handles credentials or secrets (private_key)

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

@printr/mcp Write Risk 3/5

AI agents use printr_sign_and_submit_evm to create or modify resources in Printr. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

Without a policy, an AI agent could call printr_sign_and_submit_evm repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Printr.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

io-github-printrfi-printr.yaml
tools:
  printr_sign_and_submit_evm:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Printr policy for all 23 tools.

Tool Name printr_sign_and_submit_evm
Category Write
MCP Server Printr MCP Server
Risk Level Medium

View all 23 tools →

What does the printr_sign_and_submit_evm tool do? +

Sign and submit an EVM transaction payload returned by printr_create_token. If no private_key is provided, the user will be prompted to select or provision a wallet. Returns the transaction hash and receipt once confirmed. After successful confirmation, present the trade page URL to the user: https://app.printr.money/trade/{token_id} using the token_id from the prior printr_create_token call.. It is categorised as a Write tool in the Printr MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on printr_sign_and_submit_evm? +

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

What risk level is printr_sign_and_submit_evm? +

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

Can I rate-limit printr_sign_and_submit_evm? +

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

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

printr_sign_and_submit_evm is provided by the Printr MCP server (@printr/mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Printr

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
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