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Head-to-head · Investment APIs

E*TRADE Developer API vs Addepar

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score E*TRADE Developer API #1 in Investment APIs 9.3/10 Free plan Free plan✓ 5 of 7 features Visit E*TRADE API
Addepar #7 in Investment APIs 8.6/10 Pricing on request ✓ 0 of 7 features Visit Addepar

E*TRADE Developer API leads on 0 checks, Addepar on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreE*TRADE Developer API · 9.3/10
  • Free planonly E*TRADE Developer API
  • Most featuresE*TRADE Developer API · 5 of 7

E*TRADE Developer API scores higher on our rubric for investment apis: 9.3 against 8.6 out of 10; our editors rank them #1 and #7.

E*TRADE Developer API is the better fit for established brokerage API integrations. Addepar is the better fit for enterprise multi-asset portfolio analytics.

  • E*TRADE Developer API fits best

    Established brokerage API integrations

  • Addepar fits best

    Enterprise multi-asset portfolio analytics

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Side by side

Feature E*TRADE Developer API 9.3/10 Visit ↗ Addepar 8.6/10 Visit ↗
At a glance
Editor score 9.3 8.6
Ranking #1 in Investment APIs #7 in Investment APIs
Best for Established brokerage API integrations Enterprise multi-asset portfolio analytics
Pricing model Free Paid
Starting price Free plan Pricing on request
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Phone, Docs Email, Docs
Built for Solo, Small business, Mid-market, Enterprise Mid-market, Enterprise
Features E*TRADE Developer API 5/7 · Addepar 0/7
Trading orders ✓ (best) Not checked yet
Account opening Not checked yet Not checked yet
Portfolio data ✓ (best) Not checked yet
OAuth connections ✓ (best) Not checked yet
Webhooks Not checked yet Not checked yet
Sandbox environment ✓ (best) Not checked yet
Tax-lot data ✓ (best) Not checked yet
Our review
Pros
  • Trading APIs cover equity and option order lifecycle actions.
  • OAuth, sandbox responses and streaming order-status notifications support app workflows.
  • Portfolio, balances, positions and market data are available via REST.
  • Aggregates public and private investment data across complex ownership structures
  • Combines performance, allocation, risk, liquidity and tax-lot analysis
  • Offers 77 integrations plus developer APIs and native AI-powered workflows
Cons
  • Production access requires agreements, and vendor keys need approval.
  • Applications require an E*TRADE account and consumer key.
  • Trading incurs normal per-trade fees even though the platform is free.
  • Contact-sales pricing requires vendor engagement before budgeting
  • Cloud-only deployment does not support on-premises installations
  • Support channels are limited to email and documentation
Our verdict

E*TRADE Developer API provides REST and streaming interfaces for applications connected to E*TRADE accounts. Developers can retrieve balances, positions, portfolio holdings, cost and gain details, quotes, option chains and market data,…

Read the review →

Addepar is a cloud-based portfolio management and reporting platform for investment professionals, wealth managers, family offices, fund managers and institutional allocators. It consolidates data from financial accounts and investments,…

Read the review →
  1. E*TRADE Developer APIInvestment APIs 9.3Free plan
  2. AddeparInvestment APIs 8.6Pricing on request

Strengths and trade-offs

  • E*TRADE Developer API — where it wins

    • Trading APIs cover equity and option order lifecycle actions.
    • OAuth, sandbox responses and streaming order-status notifications support app workflows.
    • Portfolio, balances, positions and market data are available via REST.

    Where it doesn't

    • Production access requires agreements, and vendor keys need approval.
    • Applications require an E*TRADE account and consumer key.
    • Trading incurs normal per-trade fees even though the platform is free.

  • Addepar — where it wins

    • Aggregates public and private investment data across complex ownership structures
    • Combines performance, allocation, risk, liquidity and tax-lot analysis
    • Offers 77 integrations plus developer APIs and native AI-powered workflows

    Where it doesn't

    • Contact-sales pricing requires vendor engagement before budgeting
    • Cloud-only deployment does not support on-premises installations
    • Support channels are limited to email and documentation

More comparisons

All investment APIs comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update