Gemini Trust Company · OpenAPI Overlay 1.0.0

API Evangelist enrichment overlay for Gemini Prediction Markets API

2 actions 2 updates update extends openapi/gemini-trust-prediction-markets-openapi.yml

Generated by API Evangelist Written by API Evangelist tooling for Gemini Trust Company's API. It is a proposal applied on top of the contract, not a document Gemini Trust Company publishes.

View Overlay File View on GitHub Overlay Specification

What the actions change

x-apis-io-providerx-apis-io-artifactsx-rate-limitx-error-envelopex-idempotencyx-sandboxx-reversibility

Targets 2

$.info

$.paths['/v1/prediction-markets/order'].post

OpenAPI Overlay

overlay: 1.0.0
info:
  title: API Evangelist enrichment overlay for Gemini Prediction Markets API
  version: 1.0.0
extends: openapi/gemini-trust-prediction-markets-openapi.yml
x-generated: '2026-09-18'
x-method: generated
x-source: Derived from API Evangelist enrichment artifacts in this repo. Applies our findings without mutating the
  provider spec.
actions:
- target: $.info
  update:
    x-apis-io-provider: gemini-trust
    x-apis-io-artifacts:
      authentication: authentication/gemini-trust-authentication.yml
      scopes: scopes/gemini-trust-scopes.yml
      conventions: conventions/gemini-trust-conventions.yml
      errors: errors/gemini-trust-error-codes.yml
      rate-limits: rate-limits/gemini-trust-rate-limits.yml
      lifecycle: lifecycle/gemini-trust-lifecycle.yml
      sandbox: sandbox/gemini-trust-sandbox.yml
      conformance: conformance/gemini-trust-conformance.yml
    x-rate-limit:
      public: 120/min
      private: 600/min
      burst: 5
      status: 429
      response_headers: null
      docs: https://developer.gemini.com/rate-limit
    x-error-envelope:
      format: proprietary
      fields:
      - result
      - reason
      - message
      docs: https://developer.gemini.com/error-codes
    x-idempotency:
      coverage: partial
      mechanism: client_order_id on order placement; clientTransferId (UUID) on crypto withdrawal. No Idempotency-Key
        header.
    x-sandbox:
      rest: https://api.sandbox.gemini.com
      ws: wss://ws.sandbox.gemini.com
      console: https://exchange.sandbox.gemini.com
- target: $.paths['/v1/prediction-markets/order'].post
  update:
    x-reversibility:
      grade: verified
      reversal: cancelOrder
      window: Any time while the order remains open; a filled order is final.
      session_reversal: cancelOrderBatch