Turn SOSPortal into an API

What you can build on SOSPortal

• Look up a business entity record

  Build this

  Searches Business Filings in Search & Order Records by File Number or Entity Name and reads the business organization record it opens.

  Takes

  File number or entity name

  Returns

  File number, entity name, entity type, status, formation date, registered agent

• Check My Submissions

  Build this

  Reads the My Submissions table in Business Filings: the filings you sent in the past 90 days, each with its Tracking Number and status.

  Takes

  Submitted since (optional), expedited only (optional)

  Returns

  Tracking number, filing type, entity name, submitted date, expedited, status

• Search UCC records by debtor

  Build this

  Runs a Debtor search in the Uniform Commercial Code tile of Search & Order Records and reads the financing statements it finds.

  Takes

  Debtor name, city (optional), state (optional)

  Returns

  Filing number, filing type, filing date, debtor, secured party, plain copy available

• Order a certified copy or certificate

  Build this

  Opens an entity record, selects Order Copies & Certificates, picks the documents, plain or certified, and checks out by ACH or credit card.

  Takes

  File number, documents or Certificate of Fact types, plain or certified

  Returns

  Order number, items, amount paid, download links

Automate SOSPortal 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.

• Rejected filings in My Submissions, each morning

  Build this

  Starts

  Every weekday at 8:00

  Step 1

  Check My Submissions for filings sent in the past 90 days.

  Step 2

  Keep the ones in Rejected status that were not Rejected on the last run.

  Step 3

  Email you each one with its tracking number, filing type and entity name, while the 30 days to resubmit run.

• New UCC filings against the debtors you watch

  Build this

  Starts

  Every Monday at 7:00

  Step 1

  For each debtor on your list, search UCC records by debtor.

  Step 2

  Keep the filings that were not there on the last run.

  Step 3

  Post filing number, filing type, filing date, debtor and secured party to your webhook.

• Status check of the entities you manage

  Build this

  Starts

  On the 1st of every month at 9:00

  Step 1

  For each file number on your list, look up the business entity record.

  Step 2

  Keep the entities whose status or registered agent changed since the last run.

  Step 3

  Email you the list with file number, entity name, old and new values.

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 “Look up a business entity record” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "sos.state.tx.us/look_up_entity_record",
    "input": {
      "file_number": "0123456789"
    }
  }'

{
  "status": "completed",
  "data": {
    "file_number": "0123456789",
    "entity_name": "Northwind Logistics LLC",
    "entity_type": "Domestic Limited Liability Company (LLC)",
    "status": "In existence",
    "formation_date": "2021-03-18",
    "registered_agent": {
      "name": "Acme Registered Agents Inc.",
      "address": "500 Main St, Suite 400, Austin, TX 78701"
    }
  }
}

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.

SOSPortal’s own options

The Texas Secretary of State documents no API for SOSPortal. Filings, entity and UCC searches and orders are done in SOSPortal itself, and each search carries a $1.00 fee. For UCC records the office sells bulk data files in JSON, ordered in SOSPortal.

Read on November 12, 2026: UCC bulk order, SOSPortal - Business Filings, Business Filings External User Guide.

Signing in to SOSPortal

SOSPortal asks for your email and password, then a multi-factor step: a code sent by email or an authenticator app, chosen the first time you sign in. One account reaches every SOSPortal service from its dashboard. With Fous you sign in once through SOSPortal's own sign-in with your own account: the login is sealed with AES-256, emailed codes are handled, and an expired session is signed back in.

Worth knowing

Every search costs $1.00

Each business or UCC search carries the $1.00 Web Inquiry Search Fee, paid by ACH or card. A workflow that loops over many names makes one paid search for each.

History covers 90 days

My Submissions and My UCC Filing History show what you sent in the past 90 days. Keep your own record if you need older tracking numbers.

30 days for drafts and rejected filings

Drafts are kept for 30 days, and a Rejected filing can be resubmitted within 30 days through Edit Rejected Submission and the shopping cart. Stop Submission also sets a filing to Rejected.

Order of Filing rejects the whole set

With Order of Filing selected in the shopping cart, all documents are reviewed together, and if one must be rejected, all of them are returned unfiled.

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