First Street · OpenAPI Overlay 1.0.0

API Evangelist enhancements for the First Street Raster Map API

3 actions 3 updates documentation extends openapi/first-street-maps-api-openapi.yml
Derived by API Evangelist Built from the contracts First Street publishes. First Street did not publish this file.
View Overlay File View on GitHub Overlay Specification

What the actions change

x-apievangelist-enrichedx-tile-schemex-tile-sizex-ogcx-ogc-notex-agent-skillsx-path-notex-product-example

Targets 3

$.info
$.paths['/v2/maps/tile/{peril}/{product}/{z}/{x}/{y}.png'].get
$.components.securitySchemes.apiKeyQuery

OpenAPI Overlay

Raw ↑
overlay: 1.0.0
info:
  title: API Evangelist enhancements for the First Street Raster Map API
  version: 1.0.0
extends: openapi/first-street-maps-api-openapi.yml
x-generated: '2026-09-10'
x-method: generated
x-source: https://docs.firststreet.org/api/raster-map-api/
actions:
  - target: $.info
    update:
      x-apievangelist-enriched: '2026-09-10'
      x-tile-scheme: xyz-web-mercator
      x-tile-size: 256x256 PNG
      x-ogc: false
      x-ogc-note: >-
        Not an OGC service. No WMS/WMTS/WFS endpoint and no GetCapabilities document exists;
        the docs never mention OGC. The tile catalogue is prose at
        https://docs.firststreet.org/api/raster-map-api/available-tiles.
      x-agent-skills: skills/first-street-raster-map-tiles.md
  - target: $.paths['/v2/maps/tile/{peril}/{product}/{z}/{x}/{y}.png'].get
    update:
      x-path-note: >-
        The `product` segment is variable-length in the real API
        (/v2/maps/tile/{peril}/{...product}/{z}/{x}/{y}.png) and differs per peril — e.g.
        /globalflood/probability/depth/{relative-year}/{ssp}/{return-period}/. OpenAPI
        cannot express a variable-length path segment, so the single {product} parameter
        here is an approximation of the published template.
      x-product-example: /globalflood/probability/depth/0/245/500/12/1171/1561.png
      x-key-exposure-warning: >-
        First Street requires that browser-facing tile requests be proxied server-side so
        the API key is never sent to a client. Report leaked keys to security@firststreet.org.
      x-recommended-opacity: '65%'
      x-legend-source: 'GraphQL: <peril> { mapLegend { colors { color represents { min max } } } }'
      x-rate-limit-note: >-
        Tiles may carry a separate contractual limit from the GraphQL surface; the docs use
        1000 requests/minute as an illustrative tile limit.
      x-billing-note: Tile requests count toward overall API usage.
  - target: $.components.securitySchemes.apiKeyQuery
    update:
      description: >-
        Static API key as the `key` query parameter. This is the form the documented tile
        URL templates use — which is exactly why the docs require a server-side proxy.

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