Wealthfront API
No public developer API. Wealthfront's REST API is internal to its own iOS, Android, and web apps. Third parties read balances, holdings, and transactions through Plaid, MX, or Yodlee aggregation, which withholds routing numbers; there is no partner program or API access page.
Frequently asked questions
Wealthfront scores F on the API Report Card. No public developer API. Wealthfront's REST API is internal to its own iOS, Android, and web apps. Third parties read balances, holdings, and transactions through Plaid, MX, or Yodlee aggregation, which withholds routing numbers; there is no partner program or API access page.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly.
Wealthfront is a Palo Alto-headquartered digital wealth-management and consumer banking company founded in 2008 by Andy Rachleff and Dan Carroll (originally as kaChing, rebranded to Wealthfront in 2011).
Vertical: Financial Services (digital wealth management / robo-advisory / digital banking / consumer fintech). Automated, tax-optimized investing in diversified ETF portfolios (Classic, Socially Responsible, Direct Indexing). Daily tax-loss harvesting across taxable accounts.
High consumer brand recognition in the U.S. fintech category, very low B2B/developer footprint.
Investment account positions, holdings, cost basis, and lot-level transactions (taxable, IRA, 529, trust). Tax-loss harvesting events, wash sale tracking, harvested losses, and tax-alpha reporting. Direct Indexing positions (individual equity lots within S&P 500 / 1500 baskets).
Founded 2008 (as kaChing), rebranded Wealthfront 2011; ~18 years old as of 2026. Cloud-native and mobile-first from inception, with a polished consumer app on iOS and Android.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.