MCP Tool Reference Medium Risk

createVercelProjectEnv

Create environment variables

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

vercel-mcp Write

WHEN AI AGENTS USE THIS TOOL

AI agents use createVercelProjectEnv to create or modify resources in Vercel. 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.

WHY ENFORCE A POLICY ON CREATEVERCELPROJECTENV

Without a policy, an AI agent could call createVercelProjectEnv 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 Vercel.

RECOMMENDED POLICY

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

vercel.yaml 
tools:
  createVercelProjectEnv:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Vercel policy for all 25 tools.

DETAILS

Tool Name

createVercelProjectEnv

Category

Write

MCP Server

Vercel MCP Server

Risk Level

Medium

MORE VERCEL TOOLS

cancelVercelDeployment Write
Cancel a deployment
createVercelDNSRecord Write
Create a DNS record for a domain
updateVercelDNSRecord Write
Update a DNS record
updateVercelProject Write
Update an existing project
updateVercelProjectDomain Write
Update a project domain
addVercelProjectDomain Write
Add a domain to a project
verifyVercelProjectDomain Write
Verify project domain
editVercelProjectEnv Write
Edit an environment variable

View all 25 tools →

SIMILAR WRITE TOOLS ON OTHER SERVERS

create_table Airtable
Create a new table with fields
update_table Airtable
Update a table's name or description
create_field Airtable
Add a new field to a table
update_field Airtable
Modify an existing field
create_record Airtable
Add a new record
update_record Airtable
Modify an existing record

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the createVercelProjectEnv tool do?

Create environment variables. It is categorised as a Write tool in the Vercel MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on createVercelProjectEnv?

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

What risk level is createVercelProjectEnv?

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

Can I rate-limit createVercelProjectEnv?

Yes. Add a rate_limit block to the createVercelProjectEnv 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 createVercelProjectEnv completely?

Set action: deny in the Intercept policy for createVercelProjectEnv. 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 createVercelProjectEnv?

createVercelProjectEnv is provided by the Vercel MCP server (vercel-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON VERCEL

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full Vercel policy →