Check your Previred planillas through an API

What you can build on Previred

• Check whether a period's planillas are paid

  Build this

  Reads the planillas of one company for one remuneration period and whether each institution's planilla is paid, and how.

  Takes

  Company RUT, remuneration period

  Returns

  Institution type, planilla status, amount, payment method, payment date

• Get a worker's paid planilla history

  Build this

  Reads the historical record of planillas pagadas (paid planillas) for one worker of one company, period by period.

  Takes

  Company RUT, worker RUT, from period

  Returns

  Period, institution type, institution, contribution paid, payment date

• Review workers' AFP, Isapre and Mutual

  Build this

  Reads the affiliation review for one company: each worker's AFP, health institution and Mutual, with any affiliation Previred flags.

  Takes

  Company RUT, remuneration period

  Returns

  Worker RUT, worker name, AFP, health institution, Mutual, flagged issue

• Enter a worker's data for the period

  Build this

  Uses Ingreso manual (uno a uno, manual entry one by one) to enter or change one worker's contribution data for a period, and returns what the online validation says.

  Takes

  Company RUT, remuneration period, worker RUT, taxable pay, days worked, personnel movement (optional)

  Returns

  Worker RUT, period, saved or not, validation messages

Automate Previred with a workflow

A workflow runs your methods as one process, with nobody at the screen. A schedule or a call from your own system starts it, the steps run in order, and the result arrives in your inbox or in the systems you already use.

• Unpaid planillas before the 13th, every company

  Build this

  Starts

  Every month on the 10th at 9:00 (America/Santiago)

  Step 1

  For each company RUT you list, check the planillas of last month's remuneration period.

  Step 2

  Keep the planillas that are not paid.

  Step 3

  Email you the list, one section per company, with institution type and amount.

• Paid planillas, handed to accounting

  Build this

  Starts

  Every month on the 14th at 8:00 (America/Santiago)

  Step 1

  For each company RUT, check the planillas of last month's remuneration period.

  Step 2

  Keep the paid ones.

  Step 3

  Post company RUT, period, institution type, amount, payment method and payment date to your ERP webhook.

• Affiliation changes before the month's declaration

  Build this

  Starts

  Every month on the 5th at 9:00 (America/Santiago)

  Step 1

  For each company RUT, review workers' AFP, health institution and Mutual for the current period.

  Step 2

  Keep the workers flagged or changed since the last run.

  Step 3

  Email you the list with worker RUT, name and what changed.

You can run a workflow by hand on every plan, Free included. Schedules and webhook triggers come with the paid plans, from $29 a month.

Once built, one call from your code

Once you have built a method, it is one POST to /v1/runs from your backend, or a tool an AI agent calls over MCP. This is what “Check whether a period's planillas are paid” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "www.previred.com/check_planillas_paid",
    "input": {
      "company_rut": "76.000.111-2",
      "period": "2026-10"
    }
  }'

{
  "status": "completed",
  "data": {
    "company": "Acme SpA",
    "company_rut": "76.000.111-2",
    "period": "2026-10",
    "planillas": [
      {
        "institution_type": "Fondo de Pensiones",
        "status": "paid",
        "amount": 2841300,
        "payment_method": "Pago Electrónico",
        "payment_date": "2026-11-11"
      }
    ],
    "currency": "CLP",
    "unpaid_count": 1
  }
}

An example with invented data, not a ready-made endpoint. The method exists in your organization once you build it, and its name, inputs and fields follow your request.

Previred’s own options

Previred's pages for employers describe no API for reading planillas or certificates. Worker data comes in by hand or as a 105-field flat file that payroll software produces, and Previred certifies payroll software for correct contribution payments. Payroll software can update Isapre FUN information once you sign a convenio per Isapre and a mandate.

Read on November 12, 2026: Ingreso de Trabajadores, Software de Remuneraciones, Firma de convenio Isapre y mandato software remuneraciones.

Signing in to Previred

Previred signs users in with their RUT and a password (CONTRASEÑA) on its Ingreso de usuarios page. One user can reach several companies, and secondary users can be limited to some of them. With Fous you sign in once through Previred's own sign-in with your own account: the login is sealed with AES-256, and an expired session is signed back in.

Worth knowing

The 13th is the payment deadline

You can enter, change and pay until the 13th of each month, with electronic payment only. For October 2026 remuneraciones the deadline is Friday 13 November 2026 at 13:45.

Secondary users per company

You can create secondary users who see planillas and certificates for chosen companies on your list without seeing the others.

Unreported changes create Mora Presunta

Mora Presunta (presumed arrears) and DNPA arise when a personnel movement is not reported or contributions are not paid. Previred's employer section has Mora Presunta y DNPA pages for AFP y AFC, IPS and Seguro Social.

FUN notices need a convenio per Isapre

Your payroll software can update FUN information only for the Isapres where your company has signed the convenio Notificación FUN Electrónico, and only after you sign its mandate.

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