n8n Credential API Creator

    2

    Create n8n credentials programmatically via REST API, including a workaround for the cryptic allOf validation bug that blocks OAuth2 credential creation.

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    n8n Credential API Creator

    Example session with this skill installed

    Create a Google Sheets OAuth2 credential in n8n for me. Use my Client ID and Secret, and make sure to handle that allOf validation error that usually happens with the API.

    • Read your context and instructions
    • Compiled the n8n credential api

    Success: OAuth2 credential created.
    ID: OdNdHy3kK7RGSfHv
    Type: googleSheetsOAuth2Api
    Note: serverUrl and additionalBodyProperties were automatically injected to bypass n8n allOf schema validation. Use the ID above to link this credential to your workflows via API.

    Connects securely to your tools. The creator never sees your data.

    About this skill

    Automate n8n Credential Management

    Setting up credentials manually in the n8n UI is a bottleneck for automated deployments and CI/CD pipelines. This skill provides a robust, developer-ready pattern for creating n8n credentials via the REST API, eliminating manual configuration steps.

    What it does

    • Automates the creation of diverse credential types including OAuth2 (Google Sheets, Drive, Gmail), HTTP Header Auth, and Basic Auth.
    • Solves the notorious "allOf schema" bug in the n8n API that causes cryptic validation errors during OAuth2 credential creation.
    • Provides ready-to-use implementation patterns for both shell (cURL) and Python.

    Why use this skill

    Standard LLM prompts often fail to account for n8n's strict OpenAPI validation requirements, which demand specific hidden fields like serverUrl even when they are empty. This skill embeds the specialized logic required to bypass these validation errors, ensuring your automation scripts work on the first try. It is essential for developers managing multi-tenant n8n instances, performing environment migrations, or building infrastructure-as-code (IaC) for automation workflows.

    Supported Outputs

    The skill generates structured API calls and Python scripts that return the official n8n credential metadata (ID, timestamps, and type) upon successful execution.

    How to use

    Skills on Agensi run inside your AI agent. Copy the prompt, paste it into your agent, and it connects to Agensi and installs this skill for you. If a payment is needed, your agent shows it to you first.

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    Verified clean 4 months ago

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    Listed4 months ago

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