Changelog

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ETF fields and person reads

• sri and hedge_currency on ETF instruments returned from List instruments and Retrieve an instrument.

• Retrieve a person no longer returns 500 when optional person columns are null in storage.

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Richer instruments and more reliable valuation

• about and net_assets on ETF instrument responses.
• trading_increment on instrument responses.
• Date-based API versioning via the Api-Version header (current version remains 2026-01-01). See Versioning.

• investment_objective on money market fund instruments is now optional in responses.
• GET /accounts/{account_id}/valuation uses the latest price per timestamp across providers.
• ETF listings no longer include exchange_mic; use the instrument’s exchange_id (an ISO 10383 MIC code) instead.

• Unrealized earnings percentage on GET /accounts/{account_id}/earnings no longer errors on zero cost basis.

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On-the-run bills and fixed-income pricing detail

• GET /bills/otr to retrieve the on-the-run bill matrix for an issuer country. Periods with no matching bill are omitted.
• ETF as an instrument type on List instruments and Retrieve an instrument.
• accrued_interest on GET /prices responses.
• next_coupon_date on fixed income instruments.

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Person creation and claim history

• Create a person to create a person from claims with verification evidence. See Persons.
• joint_customer as a customer type on Retrieve a customer.
• archived_at and lifecycle on person claim responses.
• Idempotent onboarding submissions: a duplicate pending Submit an onboarding application returns 409 conflict.

• List claims for a person now defaults to include_history=true (full audit trail, newest first). Pass ?include_history=false to collapse to the current pending and verified row per claim type. See Claims.

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Events, legal documents, and lifecycle webhooks

• GET /legal-documents and related version and file download endpoints.
• Retrieve a person claim.
• Webhook event types delivered to your registered endpoints: order.placed, order.pending, order.executing, order.filled, order.settled, order.cancelled, trade.executed, trade.settled, position.opened, position.closing, position.closed, account.opened, account.suspended, account.activated, account.closing, account.closed, and customer.closed. See Webhooks.

• POST /auth/token accepts only the client_credentials grant.
• purpose is required on POST /signed-uploads.

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Event reads and webhook delivery

• List events for tenant-scoped event reads.
• Automatic webhook delivery with retries for subscribed event types. See Deliveries.

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Initial API release

• Authentication with bearer tokens. See Authentication.
• Onboarding for persons, claims, and applications. See Onboarding.
• Trading, holdings, valuation, and payments endpoints across accounts.
• Webhooks with at-least-once delivery, signature verification, and automatic retries. See Webhooks.
• Idempotency support for write requests. See Idempotency.