regexcronsql-validator

Valida regex, cron y SQL contra ejecucion real.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Valida regex, cron y SQL contra ejecucion real. Pago por llamada via x402/USDC.

    How to connect

    How to connect regexcronsql-validator to Claude

    The server address to paste into Claude settings:

    https://regexcronsql-validator.encodari.workers.dev/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect regexcronsql-validator to ChatGPT

    The server address to paste into ChatGPT settings:

    https://regexcronsql-validator.encodari.workers.dev/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect regexcronsql-validator to Cursor

    The server address to paste into Cursor settings:

    https://regexcronsql-validator.encodari.workers.dev/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (3)

    Raw names from tools/list. Only developers need these.

    validar_regexEjecuta un patrón de expresión regular (motor nativo de JavaScript) contra una lista de strings de prueba y devuelve, para cada uno, si hizo match, el match completo y los grupos capturados. Usa RegExp real, no una suposición del modelo sobre qué haría el patrón. Cuesta $0.02 USDC (Base) por llamada.
    validar_cronCalcula las próximas ejecuciones reales de una expresión cron usando cron-parser (no una suposición del modelo sobre cuándo dispararía). Interpreta los campos en UTC para que el resultado no dependa de la zona horaria del servidor que corre la tool. Cuesta $0.02 USDC (Base) por llamada.
    validar_sqlEjecuta una consulta SQL (dialecto Postgres, motor pg-mem en memoria) contra tablas de prueba opcionales y devuelve las filas reales resultantes. Usa un motor SQL real, no una suposición del modelo sobre qué devolvería la query. Sin base de datos persistente: las tablas se crean desde cero en cada llamada y se descartan al terminar. Cuesta $0.04 USDC (Base) por llamada.