Region: US
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Fixed

Operation ID and schema name corrections, plus description typos

September 29th, 2026

Broker API

Corrects two misspelled operation IDs in the Broker API description:

  • listIRAExcessContritbutions is now listIRAExcessContributions.
  • suscribeToAccountStatusSSE is now subscribeToAccountStatusSSE.

The HTTP contract is unchanged: paths, methods, parameters, and response shapes are the same. Operation IDs affect generated SDK method names and API reference page slugs, so regenerate clients if you depend on the old names.

Also fixes roughly 30 description typos across operations and schemas (for example activites, intiating_symbol, Koijin Bango, the truncated ratio of the spli), and standardizes canonical prose on US English.

Affected Endpoints

  • GET /v1/accounts/ira_excess_contributions
  • GET /v1/events/accounts/status

Trading API

Renames the PositionClosedReponse schema to PositionClosedResponse, matching the spelling already used by the Broker API. The response body returned by Close All Positions is unchanged; only the component name in the API description differs, which affects generated SDK type names.

Also fixes description typos on the portfolio history and account activities operations.

Affected Endpoints

  • DELETE /v2/positions
  • GET /v2/account/portfolio/history
  • GET /v2/account/activities
  • GET /v2/account/activities/{activity_type}

Market Data API

Standardizes spelling in the corporate action event schema descriptions (specialised is now specialized). No schema or behavior change.