# EPA — U.S. Environmental Protection Agency Online Offline Calibration API

**Canonical:** https://apis.io/apis/epa/epa-online-offline-calibration-api/  
**Provider:** EPA — U.S. Environmental Protection Agency — https://apis.io/providers/epa/  
**Base URL:** https://aqs.epa.gov/data/api  
**Documentation:** https://aqs.epa.gov/aqsweb/documents/data_api.html

EPA — U.S. Environmental Protection Agency Online Offline Calibration API is one of 137 APIs that [EPA — U.S. Environmental Protection Agency](https://apis.io/providers/epa/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1242 JSON Schema definitions. Tagged areas include Online Offline Calibration. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 1242 JSON Schemas.

The Online Offline Calibration API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for online offline calibration.

## Machine-readable artifacts (1887)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/openapi/epa-online-offline-calibration-api-openapi.yml
- **Documentation** — https://aqs.epa.gov/aqsweb/documents/data_api.html
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/aqs-envelope-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/aqs-header-schema.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/aqs-envelope-structure.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/aqs-header-structure.json
- **Examples** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/examples/aqs-envelope-example.json
- **Examples** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/examples/aqs-header-example.json
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/graphql/epa-graphql.md
- **Documentation** — https://www.epa.gov/enviro/envirofacts-data-service-api
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/envirofacts-row-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/envirofacts-uv-daily-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/envirofacts-uv-hourly-schema.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/envirofacts-row-structure.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/envirofacts-uv-daily-structure.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/envirofacts-uv-hourly-structure.json
- **Examples** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/examples/envirofacts-row-example.json
- **Examples** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/examples/envirofacts-uv-daily-example.json
- **Examples** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/examples/envirofacts-uv-hourly-example.json
- **Documentation** — https://echo.epa.gov/tools/web-services
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo01-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo02-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo03-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo04-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo05-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo06-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo07-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo08-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo09-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo10-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-echo11-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-geo-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-meta1-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-meta3-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-all-qp0-schema.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/echo-all-echo01-structure.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/echo-all-echo02-structure.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/echo-all-echo03-structure.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/echo-all-echo04-structure.json
- **JSONStructure** — https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/echo-all-echo05-structure.json
- …and 1847 more, listed in full on the page.

## Other EPA — U.S. Environmental Protection Agency APIs (12)

- [EPA Facility Registry Service (FRS) API](https://apis.io/apis/epa/epa-facility-registry-service-frs-api/)
- [EPA TRI (Toxics Release Inventory) Web Service](https://apis.io/apis/epa/epa-tri-toxics-release-inventory-web-service/)
- [EPA ATTAINS Web Services](https://apis.io/apis/epa/epa-attains-web-services/)
- [EPA WATERS — Watershed Assessment, Tracking & Environmental Results](https://apis.io/apis/epa/epa-waters-watershed-assessment-tracking-environmental-results/)
- [EPA Grants API](https://apis.io/apis/epa/epa-grants-api/)
- [EPA Insect Repellents API](https://apis.io/apis/epa/epa-insect-repellents-api/)
- [EPA e-Manifest Hazardous Waste Tracking](https://apis.io/apis/epa/epa-e-manifest-hazardous-waste-tracking/)
- [EPA System of Registries (SoR)](https://apis.io/apis/epa/epa-system-of-registries-sor/)
- [CTX — Center for Computational Toxicology and Exposure APIs](https://apis.io/apis/epa/ctx-center-for-computational-toxicology-and-exposure-apis/)
- [EPA — U.S. Environmental Protection Agency Account Type Codes API](https://apis.io/apis/epa/epa-account-type-codes-api/)
- [EPA — U.S. Environmental Protection Agency Accounts API](https://apis.io/apis/epa/epa-accounts-api/)
- [EPA — U.S. Environmental Protection Agency Air Emission Testing API](https://apis.io/apis/epa/epa-air-emission-testing-api/)

## Tags

Online Offline Calibration

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/epa/epa-online-offline-calibration-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/epa/.