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February 9, 2026
Fix
Documentation fix

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Transactions API — OpenAPI documentation fix

Fixed OpenAPI schema inconsistencies between documentation and implementation for the /transactions endpoints. No breaking changes — API responses remain unchanged, only the OpenAPI spec was corrected.Nullable fields corrected:
  • Fee: fungible_info, price, value marked as nullable
  • Refund: fungible_info, price, value marked as nullable
  • Transfer: price, value marked as nullable
  • Fungible Info: icon marked as nullable
Missing fields documented:
  • Transaction attributes: address, refund, delegations
  • Fungible Info: id
Migration: No client changes required. Clients using generated models should ensure they handle null values, as these were already nullable in practice.
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February 4, 2026
Feature
New feature

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Chart periods — new time values

Added two new time period values to the chart_period parameter:
  • 6months — 6-month chart period
  • 5years — 5-year chart period
These complement the existing options: hour, day, week, month, 3months, year, and max.Affected endpoints:
  • GET /wallets/{address}/charts/{chart_period}
  • GET /fungibles/{fungible_id}/charts/{chart_period}
  • GET /fungibles/by-implementation/charts/{chart_period}
curl -u "YOUR_API_KEY:" \
  "https://api.zerion.io/v1/wallets/0xd8dA.../charts/6months"
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January 7, 2026
Feature
New feature

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Portfolio API — sync parameter

Added new sync query parameter to the /wallets/{address}/portfolio endpoint.
  • true: Triggers a position sync and waits up to 30 seconds for fresh portfolio data before responding.
  • false (default): Returns immediately with cached data.
curl -u "YOUR_API_KEY:" \
  "https://api.zerion.io/v1/wallets/0xd8dA.../portfolio?sync=true"
Clients should configure appropriate timeout settings when using sync=true.
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November 19, 2025
Feature
New feature

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Positions API — sync parameter

Added new sync query parameter to the /wallets/{address}/positions endpoint.
  • true: Waits up to 30 seconds for protocol positions to be updated and returns fresh data.
  • false (default): Returns immediately with available position data.
curl -u "YOUR_API_KEY:" \
  "https://api.zerion.io/v1/wallets/0xd8dA.../positions?sync=true"
Clients should configure appropriate timeout settings when using sync=true.