EPA — U.S. Environmental Protection Agency QA Certification API
The QA Certification API from EPA — U.S. Environmental Protection Agency — 4 operation(s) for qa certification.
EPA — U.S. Environmental Protection Agency QA Certification API is one of 137 APIs that EPA — U.S. Environmental Protection Agency publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
This API exposes 1242 JSON Schema definitions.
Tagged areas include QA Certification. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 1242 JSON Schemas.
This API exposes 4 operations across 4 paths, and defines 35 schemas. It is described by OpenAPI 3.2.0, at version v2.0.80 published: Thu Mar 26 2026.
Requests are made against a single base URL, https://api.epa.gov/easey.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
EPA — U.S. Environmental Protection Agency QA Certification API declares
2 security schemes
for authenticating requests.
An API key is passed in the header as x-api-key (APIKey).
It accepts HTTP bearer tokens (JWT) (Token).
APIKey— API Key required via "x-api-key" request header!Token— Authorization "bearer" token required for data modification operations
Paths & Operations 4
Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.
Schemas 35
The contract defines 35 schemas that model the data the API accepts and returns. The most detailed are TestSummaryDTO (51 properties), RataSummaryDTO (37 properties), OnlineOfflineCalibrationDTO (30 properties), QACertificationEventDTO (28 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from EPA — U.S. Environmental Protection Agency 12
Other APIs EPA — U.S. Environmental Protection Agency publishes across the network.
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