connect_service
Connect a service so the orchestrator can use it. Each service requires specific credentials. Examples: - Stripe: {
This record as markdown: /tools/io-github-0nork-0nmcp/connect-service.md
What connect_service does on 0nmcp
AI agents use connect_service to create or update resources in 0nmcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 0nmcp environment.
Why connect_service is rated Medium
This tool creates or registers a new service connection, which is a reversible modification to the orchestrator's configuration. While credentials are provided, the act itself is Write-class (establishing a connection).
From the tool's definition Tool description states 'Connect a service so the orchestrator can use it. Each service requires specific credentials.' The tool accepts credentials for external services (example mentions Stripe), which creates new integrations and potentially modifies…
Attacks that exploit this kind of access
The rule that runs connect_service safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 0nmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For connect_service, this is the rule to start with:
connect_service 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.
The button opens the PolicyLayer dashboard: create your workspace, connect 0nmcp, apply this rule, and every connect_service call is checked against it from then on.
Questions about connect_service
Connect a service so the orchestrator can use it. Each service requires specific credentials. Examples: - Stripe: {. It is categorised as a Write tool in the 0nmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the 0n MCP server in PolicyLayer and add a rule for connect_service: 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 0nmcp. Nothing to install.
connect_service is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the connect_service 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.
Set action: deny in the PolicyLayer policy for connect_service. 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.
connect_service is provided by the 0n MCP server (0nmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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