Scope3 · OpenAPI Overlay 1.0.0

API Evangelist enhancements for the Scope3 Interchange Buyer API

2 actions 2 updates update extends openapi/_original/scope3-buyer-openapi-original.yml
Authorship not recorded No authorship marker is recorded for this file. It is not presented as the provider's.
View Overlay File View on GitHub Overlay Specification

What the actions change

x-apievangelist-provenancex-api-base-urlx-authenticationx-oauth-scopesx-error-catalogx-conventionsx-rate-limitsx-plans

Targets 2

$.info
$.servers

OpenAPI Overlay

Raw ↑ 
overlay: 1.0.0
info:
  title: API Evangelist enhancements for the Scope3 Interchange Buyer API
  version: 1.0.0
extends: openapi/_original/scope3-buyer-openapi-original.yml
actions:
  - target: $.info
    update:
      x-apievangelist-provenance: >-
        Verbatim published spec, fetched 2026-08-13 from
        https://api.interchange.io/api/v2/buyer/openapi.yaml (HTTP 200). Ownership confirmed
        from the document itself: info.title "Scope3 Buyer API" and servers[0].url
        https://api.interchange.io/api/v2/buyer. Interchange is Scope3's agentic-advertising
        product; api.interchange.io names identity.scope3.com as an authorization server.
      x-api-base-url: https://api.interchange.io/api/v2/buyer
      x-authentication: authentication/scope3-authentication.yml
      x-oauth-scopes: scopes/scope3-scopes.yml
      x-error-catalog: errors/scope3-problem-types.yml
      x-conventions: conventions/scope3-conventions.yml
      x-rate-limits: rate-limits/scope3-rate-limits.yml
      x-plans: plans/scope3-plans-pricing.yml
      x-data-model: data-model/scope3-data-model.yml
      x-lifecycle: lifecycle/scope3-lifecycle.yml
      x-webhooks: asyncapi/scope3-webhooks.yml
      x-mcp-server: https://api.interchange.io/mcp/buyer
      x-tool-crosswalk: mcp/scope3-tool-crosswalk.yml
      x-agent-card: a2a/scope3-a2a.yml
      x-agent-skill: skills/scope3-agentic-buyer.md
      x-idempotency: >-
        Body-level idempotencyKey (minLength 8, maxLength 128, pattern ^[A-Za-z0-9._:-]+$),
        required on rate-card acceptance. No Idempotency-Key request header.
      x-response-envelope: '{"data": <result>, "error": null}'
      x-pagination: 'offset via take/skip; meta.pagination carries skip, take, total, hasMore'
      x-sdk-gap: >-
        No first-party client library targets this API; the documented integration paths are
        the hosted MCP endpoint and raw REST.
  - target: $.servers
    update:
      - url: https://api.interchange.io/api/v2/buyer
        description: Production server