My Speaking Score's API (VoX)

Modified on Sun, 11 Jan at 3:43 AM

The My Speaking Score API allows platforms and developers to integrate automated TOEFL Speaking score prediction into their own products using VoX, My Speaking Score’s proprietary scoring and prediction system.

The API is designed for platforms that want scalable, automated speaking evaluation without integrating ETS technologies.


More details:
https://www.myspeakingscore.com/my-speaking-score-api


Purpose

The API enables automated evaluation of TOEFL-aligned speaking tasks for practice, diagnostics, and large-scale assessment workflows.


It is built for teams that need consistent, task-level scoring and reliable analytics without building or maintaining their own speech assessment infrastructure.


Core capability: VoX AI score prediction

VoX is My Speaking Score’s proprietary prediction system for TOEFL Speaking.

  • Accepts spoken responses and task metadata

  • Returns:

    • Predicted TOEFL Speaking score

    • Optional confidence interval (e.g., 3.2–3.8)

  • Designed for scalable practice scoring, benchmarking, and analytics

All scoring is fully automated.


Features

  • Real-time scoring or batch processing

  • Task-level and category-level outputs

  • Optional confidence intervals on predicted scores

  • Optional CEFR- and IELTS-aligned score mappings

  • REST API with secure endpoints

  • JSON request and response format


Authentication and access

  • API access requires an API key issued by the My Speaking Score team

  • Tiered access based on usage volume and feature set

  • Custom integrations available for enterprise partners and institutions


Common use cases

  • EdTech platforms

  • TOEFL Speaking preparation apps

  • Online tutoring and coaching systems

  • Institutional assessment tools

  • Voice-enabled language learning products


Contact

For documentation, pricing, or integration discussions, please contact the My Speaking Score team.

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