Alpaca Broker API data extractor

Import a new customer’s Alpaca Broker API data — account documents, accounts, accounts activities, and assets, and 3 more object types — into your product as normalised, relational tables. Vern handles Alpaca Broker API’s auth, pagination and rate limits, so onboarding a customer off Alpaca Broker API doesn’t mean building and maintaining that plumbing yourself.

Start a migration Browse all extractors

Objects extracted: 7
Incremental: 4
Authentication: Username and password

Export coverage

What Vern pulls from Alpaca Broker API

Know exactly what comes across before you migrate. Every object below is normalised into typed tables with referential keys preserved, so the relationships between a customer's records survive the import.

Account documents
Accounts
Accounts activities
Assets
Calendar
Clock
Country info

Managed by Vern

The parts you'd otherwise build yourself

Authentication

Your customer provides their sign-in details once. Vern stores them encrypted in a vault, never in the agent transcript, and uses them only for this migration.

Pagination

Vern detects and handles Alpaca Broker API's paging model — cursor, page number or offset — internally, and returns one consistent, de-duplicated result set. You import a customer's complete data without ever managing a page token.

Rate limits

API sources rarely publish their real rate ceiling until you hit a 429 mid-import, and many silently cap page size. Vern queues and throttles requests to stay under the limit, so a partial pull never lands a customer in your product with missing data.

Output shape

Normalised JSON per object with referential keys preserved and timestamps in ISO 8601. Delivered as JSON or CSV, pushed to your API or webhook, or loaded straight into your application database.

Schema drift

If Alpaca Broker API changes what it returns between migrations, the agent notices the difference against what it recorded last time and raises it, rather than importing a customer with a column quietly missing.

What it learns

Everything Vern works out about Alpaca Broker API's quirks — field formats, enum values, ID and date patterns — is written down against the source and applied automatically to every customer you migrate off it afterwards.

What your customer provides

Environment
Start date
Username

Collected once, stored encrypted in a vault, and attached to every request. Credentials are never written into the agent transcript.

API quickstart

Run a Alpaca Broker API migration from your own product

Create the migration, let the agent extract and map, then pull the result out — without your customer ever seeing a Vern dashboard.

app.vern.so/api/v1

API=https://app.vern.so/api/v1
KEY="x-api-key: $VERN_API_KEY"
JSON="Content-Type: application/json"

# 1 — create a migration against Alpaca Broker API
ID=$(curl -sX POST $API/migrations -H "$KEY" -H "$JSON" \
  -d '{"name":"Acme onboarding","source":"Alpaca Broker API"}' \
  | jq -r .migration.id)

# 2 — hand over the customer's credentials for this run
curl -X POST $API/migrations/$ID/source-connection -H "$KEY" -H "$JSON" \
  -d '{"credentials": { ... }}'

# 3 — the agent extracts, maps and previews, stopping before it writes
curl -X POST $API/migrations/$ID/runs -H "$KEY" -H "$JSON" \
  -d '{"kind":"generate"}'

curl $API/migrations/$ID/preview -H "$KEY"

# 4 — approve, then pull the normalised rows back out
curl -X POST $API/migrations/$ID/runs -H "$KEY" -H "$JSON" \
  -d '{"kind":"execute"}'

curl -X POST $API/migrations/$ID/exports -H "$KEY" -H "$JSON" \
  -d '{"slugs":["customers","invoices"]}'

The Migration API runs the whole lifecycle over HTTP with an organisation-scoped key. The agent conversation can be streamed into your own UI, and the preview lets you check exactly what an import will produce before a single row is written.

Read the API reference

Alpaca Broker API references

Onboarding a customer off Alpaca Broker API?

Bring a real Alpaca Broker API export and we'll show you what lands in your product.

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