Stannp · OpenAPI Overlay 1.0.0

API Evangelist enhancements for Stannp Direct Mail Account Events API

4 actions 4 updates update extends openapi/stannp-events-api-openapi.yml
Derived by API Evangelist Built from the contracts Stannp publishes. Stannp did not publish this file.
View Overlay File View on GitHub Overlay Specification

What the actions change

x-apievangelist-profilex-apievangelist-sourcex-apievangelist-artifactsapiKeyQueryx-apievangelist-data-model

Targets 4

$.info
$.components.securitySchemes
$.servers
$.tags[?(@.name=='Events')]

OpenAPI Overlay

Raw ↑
overlay: 1.0.0
info:
  title: API Evangelist enhancements for Stannp Direct Mail Account Events API
  version: 1.0.0
  x-generated: '2026-08-13'
  x-method: generated
  x-source: https://www.stannp.com/us/direct-mail-api/guide
extends: openapi/stannp-events-api-openapi.yml
actions:
- target: $.info
  description: Record API Evangelist provenance and the artifacts derived from this spec.
  update:
    x-apievangelist-profile: https://apis.io/provider/stannp/
    x-apievangelist-source: https://www.stannp.com/stannp-api-llm.md
    x-apievangelist-artifacts:
      conventions: conventions/stannp-conventions.yml
      authentication: authentication/stannp-authentication.yml
      errors: errors/stannp-problem-types.yml
      rate-limits: rate-limits/stannp-rate-limits.yml
      sandbox: sandbox/stannp-sandbox.yml
      webhooks: asyncapi/stannp-webhooks.yml
      data-model: data-model/stannp-data-model.yml
      llms: llms/stannp-llms.txt
- target: $.components.securitySchemes
  description: 'Stannp documents a second, spec-absent auth transport: the API key may be sent as an `api_key`
    query parameter instead of HTTP Basic. Added here rather than in the harvested spec. See authentication/stannp-authentication.yml.'
  update:
    apiKeyQuery:
      type: apiKey
      in: query
      name: api_key
      description: 'Alternative to HTTP Basic: append ?api_key={API_KEY}. Documented at https://www.stannp.com/us/direct-mail-api/guide.
        Note that a key in the query string is logged by proxies, CDNs and access logs; HTTP Basic is
        the safer option.'
- target: $.servers
  description: Region is selected by host, not by parameter, and a key authenticates only against the
    region it was issued in.
  update:
  - url: https://api-us1.stannp.com/v1
    description: 'US / CA API server. Defaults: US-LETTER letters, 4x6 postcards.'
  - url: https://api-eu1.stannp.com/v1
    description: 'EU / UK API server. Defaults: A4 letters, A6 postcards.'
- target: $.tags[?(@.name=='Events')]
  description: Cross-link the tag to the API Evangelist data model.
  update:
    x-apievangelist-data-model: data-model/stannp-data-model.yml

Work with this as data

Every overlay here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for openapi overlays

4 MCP tools reach this
  • find_overlaysBrowse and filter every overlay in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This overlay
curl "https://apis.io/api/v1/overlays/stannp-events-api-overlay"
All openapi overlays
curl "https://apis.io/api/v1/overlays?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.