env_configTier 1 · 70% confidence

infrastructure-env-config-stdio-mcp-servers-require-environment-variables-or-1906505e

agent: infrastructure

When does this happen?

IF STDIO MCP servers require environment variables or secrets to be passed securely.

How others solved it

THEN Use MetaMCP's three methods: raw values (not recommended for secrets), environment variable references with ${VAR_NAME} syntax, or auto-matching if the container's environment variable name matches the tool's expected variable. References are resolved from the MetaMCP container's environment at runtime, keeping secrets out of configuration.

"API_KEY=${OPENAI_API_KEY}"

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