# EPA — U.S. Environmental Protection Agency **Canonical:** https://apis.io/providers/epa/ **Website:** https://www.epa.gov **APIs profiled:** 137 Web services, data products, and open data spanning the U.S. Environmental Protection Agency. Programmatic access to air quality, water quality, hazardous waste, toxic releases, facility compliance, power-sector emissions, computational toxicology, and watershed assessments through dozens of public APIs. ## Kin Score — 53.7 / 100 (developing) Scored 2026-08-20 under rubric 0.12.0. Trend: flat (-3.4 from 57.1). | Facet | Score | |---|---| | Discoverability | 57.4 | | Contract Quality | 64.9 | | Governance | 25.0 | | Contract Governance | 25.0 | | Operational Transparency | 42.1 | | Developer Ergonomics | 61.9 | | Commercial Clarity | 28.9 | | Access Clarity | 28.9 | Regulatory layer — **Government & Public Sector**: 55.6 (matched via tags). ## Agent readiness — 35.0 (agent-ready) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | no | | MCP Server | no | | Auth Clarity | yes | | Idempotency | no | | Error Semantics | no | | OpenAPI Examples | verified | | Rate Limit Signal | documented | | Event Surface Described | no | | Agent Skills | no | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | ## Access Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium). ## APIs (137) - **EPA Facility Registry Service (FRS) API** — Master inventory of EPA-regulated facilities cross-walked across air, water, waste, and drinking-water programs. Production query and submit endpoints require a NAAS account. - **EPA TRI (Toxics Release Inventory) Web Service** — Toxic chemical release and transfer reporting (Form R / Form A) covering ~770 listed chemicals at TRI-covered facilities. Exposed primarily via the Envirofacts data service over... - **EPA ATTAINS Web Services** — Assessment, Total Maximum Daily Load Tracking and Implementation System — REST/JSON services for state water quality assessments, impaired waters, TMDLs, and actions. - **EPA WATERS — Watershed Assessment, Tracking & Environmental Results** — Geospatial water program services including StreamCat, NHDPlus, and ATTAINS overlays. - **EPA Grants API** — Internal-with-key access to NGGS grant programs — applications, obligations, place of performance, and funding opportunities. GraphQL plus REST format dispatchers (JSON/XML/CSV/... - **EPA Insect Repellents API** — Searchable inventory of EPA-registered insect repellent products with active ingredient, target pest, and duration data. - **EPA e-Manifest Hazardous Waste Tracking** — Electronic hazardous waste manifest tracking system with REST APIs for manifest creation, retrieval, search, and lifecycle management. Production access via NAAS/CDX. - **EPA System of Registries (SoR)** — Authoritative registries of substances, regulatory programs, terminology, and crosswalks used across EPA systems. - **CTX — Center for Computational Toxicology and Exposure APIs** — Chemical, hazard, bioactivity, and exposure data covering tens of thousands of chemicals. Includes Chemical, Bioactivity, Hazard, Exposure, and ToxRefDB endpoints. - **EPA — U.S. Environmental Protection Agency Account Type Codes API** — The Account Type Codes API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for account type codes. - **EPA — U.S. Environmental Protection Agency Accounts API** — The Accounts API from EPA — U.S. Environmental Protection Agency — 5 operation(s) for accounts. - **EPA — U.S. Environmental Protection Agency Air Emission Testing API** — The Air Emission Testing API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for air emission testing. - **EPA — U.S. Environmental Protection Agency Allowance Compliance API** — The Allowance Compliance API from EPA — U.S. Environmental Protection Agency — 4 operation(s) for allowance compliance. - **EPA — U.S. Environmental Protection Agency Allowance Holdings API** — The Allowance Holdings API from EPA — U.S. Environmental Protection Agency — 4 operation(s) for allowance holdings. - **EPA — U.S. Environmental Protection Agency Allowance Transactions API** — The Allowance Transactions API from EPA — U.S. Environmental Protection Agency — 4 operation(s) for allowance transactions. - **EPA — U.S. Environmental Protection Agency Analysis Services API** — The Analysis Services API from EPA — U.S. Environmental Protection Agency — 5 operation(s) for analysis services. - **EPA — U.S. Environmental Protection Agency Analyzer Ranges API** — The Analyzer Ranges API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for analyzer ranges. - **EPA — U.S. Environmental Protection Agency Annual Data API** — Annual aggregated values. - **EPA — U.S. Environmental Protection Agency Appendix E Correlation Test Run API** — The Appendix E Correlation Test Run API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for appendix e correlation test run. - **EPA — U.S. Environmental Protection Agency Appendix E Correlation Test Summary API** — The Appendix E Correlation Test Summary API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for appendix e correlation test summary. - **EPA — U.S. Environmental Protection Agency Appendix E Heat Input From Gas API** — The Appendix E Heat Input From Gas API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for appendix e heat input from gas. - **EPA — U.S. Environmental Protection Agency Appendix E Heat Input From Oil API** — The Appendix E Heat Input From Oil API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for appendix e heat input from oil. - **EPA — U.S. Environmental Protection Agency Apportioned Annual Emissions API** — The Apportioned Annual Emissions API from EPA — U.S. Environmental Protection Agency — 8 operation(s) for apportioned annual emissions. - **EPA — U.S. Environmental Protection Agency Apportioned Daily Emissions API** — The Apportioned Daily Emissions API from EPA — U.S. Environmental Protection Agency — 8 operation(s) for apportioned daily emissions. - **EPA — U.S. Environmental Protection Agency Apportioned Emissions API** — The Apportioned Emissions API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for apportioned emissions. - **EPA — U.S. Environmental Protection Agency Apportioned Hourly Emissions API** — The Apportioned Hourly Emissions API from EPA — U.S. Environmental Protection Agency — 8 operation(s) for apportioned hourly emissions. - **EPA — U.S. Environmental Protection Agency Apportioned Hourly MATS Emissions API** — The Apportioned Hourly MATS Emissions API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for apportioned hourly mats emissions. - **EPA — U.S. Environmental Protection Agency Apportioned MATS Emissions API** — The Apportioned MATS Emissions API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for apportioned mats emissions. - **EPA — U.S. Environmental Protection Agency Apportioned Monthly Emissions API** — The Apportioned Monthly Emissions API from EPA — U.S. Environmental Protection Agency — 8 operation(s) for apportioned monthly emissions. - **EPA — U.S. Environmental Protection Agency Apportioned Ozone Emissions API** — The Apportioned Ozone Emissions API from EPA — U.S. Environmental Protection Agency — 8 operation(s) for apportioned ozone emissions. - **EPA — U.S. Environmental Protection Agency Apportioned Quarterly Emissions API** — The Apportioned Quarterly Emissions API from EPA — U.S. Environmental Protection Agency — 9 operation(s) for apportioned quarterly emissions. - **EPA — U.S. Environmental Protection Agency Attributes API** — The Attributes API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for attributes. - **EPA — U.S. Environmental Protection Agency Bap API** — The Bap API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for bap. - **EPA — U.S. Environmental Protection Agency Bulk Files API** — The Bulk Files API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for bulk files. - **EPA — U.S. Environmental Protection Agency Calibration Injection API** — The Calibration Injection API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for calibration injection. - **EPA — U.S. Environmental Protection Agency Case Enforcement API** — The Case Enforcement API from EPA — U.S. Environmental Protection Agency — 9 operation(s) for case enforcement. - **EPA — U.S. Environmental Protection Agency CIP Indexing Services API** — The CIP Indexing Services API from EPA — U.S. Environmental Protection Agency — 3 operation(s) for cip indexing services. - **EPA — U.S. Environmental Protection Agency Codes & Descriptions API** — The Codes & Descriptions API from EPA — U.S. Environmental Protection Agency — 2 operation(s) for codes & descriptions. - **EPA — U.S. Environmental Protection Agency Comments API** — The Comments API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for comments. - **EPA — U.S. Environmental Protection Agency Components API** — The Components API from EPA — U.S. Environmental Protection Agency — 1 operation(s) for components. - …and 97 more, listed in full on the page. ## Agentic access (1) - **Epa Agentic Access** — 611 operations · 148 acting · 1 human-in-the-loop ## Security (2) - **Epa Authentication** — apiKey/http · 5 schemes - **Epa Domain Security** — TLSv1.3 · HSTS · DNSSEC ## Use cases (8) - **Environmental Justice Analysis** — Overlay TRI, ECHO, and AQS data with demographic layers to identify cumulative impacts. - **Compliance Screening** — Use ECHO and the Detailed Facility Report to vet sites in M&A diligence or permit reviews. - **Air Quality Forecasting** — Combine AQS observations with NWS / EPA AirNow forecasts for public-facing apps. - **Hazardous Waste Tracking** — Integrate the e-Manifest API into waste generator and transporter logistics systems. - **Drinking Water Reporting** — Use SDWIS via ECHO to monitor public water system violations and inform consumer notifications. - **Climate / Decarbonization** — Pull CAM emissions and GHGRP data for power-sector carbon analytics and FrEDI-style impact modeling. - **Chemical Risk Assessment** — Use CTX (Chemical, Hazard, Bioactivity, Exposure) data plus ToxCast/ToxRefDB to triage substances. - **Watershed Restoration** — Combine ATTAINS impairments, How's My Waterway, and StreamCat metrics for restoration planning. ## Tags Government, Environmental, Open Data, Air Quality, Water Quality, Hazardous Waste, Compliance, Emissions --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/epa/). Scores are computed from the provider's own public artifacts under a published rubric.