# Department of Interior **Canonical:** https://apis.io/providers/doi/ **Website:** https://www.doi.gov/ **APIs profiled:** 41 The U.S. Department of the Interior (DOI) manages and conserves federal lands and natural resources across America. DOI's bureaus and offices provide REST APIs and data services covering national park information, water resources, earthquake data, mineral resources, geospatial federal land boundaries, and wildlife data. Key API providers include the National Park Service (NPS), the U.S. Geological Survey (USGS), and the Bureau of Land Management (BLM). ## Kin Score — 34.3 / 100 (thin) Scored 2026-08-20 under rubric 0.12.0. Trend: flat (-1.9 from 36.2). | Facet | Score | |---|---| | Discoverability | 50.0 | | Contract Quality | 62.9 | | Governance | 9.8 | | Contract Governance | 9.8 | | Operational Transparency | 5.3 | | Developer Ergonomics | 11.9 | | Commercial Clarity | 39.5 | | Access Clarity | 39.5 | Regulatory layer — **Government & Public Sector**: 31.5 (matched via tags). ## Agent readiness — 29.1 (agent-aware) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | no | | MCP Server | no | | Auth Clarity | yes | | Idempotency | no | | Error Semantics | no | | OpenAPI Examples | no | | 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 Free · Self-serve signup — onboarding: self-serve, pricing: free, trial: no (confidence: high). ## APIs (41) - **NPS Data API** — The National Park Service Data API provides authoritative data about NPS sites including parks, alerts, campgrounds, events, visitor centers, news releases, articles, and educat... - **USGS Earthquake Hazards Web Services** — Real-time earthquake data feeds, notifications, and web services providing access to seismic event data including location, magnitude, depth, and related hazard information. Sup... - **USGS Mineral Resources Data API** — API access to the USGS Mineral Resources Data System (MRDS) and related mineral deposit databases. Supports geographic queries, bounding box searches, point queries, and access ... - **BLM GIS REST Services** — Bureau of Land Management geospatial REST services providing access to federal land status, cadastral data (Public Land Survey System), mineral rights boundaries, and other BLM-... - **USGS ScienceBase API** — ScienceBase provides collaborative scientific data management infrastructure enabling upload, documentation, sharing, and discovery of USGS scientific data using standards-compl... - **Department of Interior agency-codes API** — Code identifying the agency or organization used for site information, data sources, and permitting agencies. Agency codes are fixed values assigned by the National Water Inform... - **Department of Interior altitude-datums API** — The recommended vertical datum is NAVD88 (North American Vertical Datum of 1988) where applicable as stated in Office of Information Technical Memo 2002.01. NGVD29 (National Geo... - **Department of Interior aquifer-codes API** — Local aquifers in USGS data are identified by an aquifer name and geohydrologic unit code (a three-digit number related to the age of the formation, followed by a 4 or 5 charact... - **Department of Interior aquifer-types API** — Groundwater occurs in aquifers under two different conditions. Where water only partly fills an aquifer, the upper surface is free to rise and decline. These aquifers are referr... - **Department of Interior channel-measurements API** — Channel measurements taken as part of streamflow field measurements. - **Department of Interior citations API** — Citations associated with water measurement methods. - **Department of Interior combined-metadata API** — This endpoint combines metadata from timeseries and field measurements collections by site. - **Department of Interior continuous API** — Continuous data are collected via automated sensors installed at a monitoring location. They are collected at a high frequency and often at a fixed 15-minute interval. Depending... - **Department of Interior coordinate-accuracy-codes API** — Appropriate code on the schedule to indicate the accuracy of the latitude-longitude values. - **Department of Interior coordinate-datum-codes API** — Horizontal datum code for the latitude/longitude coordinates. There are currently more than 300 horizontal datums available for entry. - **Department of Interior coordinate-method-codes API** — Methods used to determine latitude-longitude values. - **Department of Interior counties API** — The name of the county or county equivalent (parish, borough, planning reagion, etc.) in which the site is located. List includes Census Bureau FIPS county codes, names and asso... - **Department of Interior countries API** — FIPS country codes and names. - **Department of Interior daily API** — Daily data provide one data value to represent water conditions for the day. Throughout much of the history of the USGS, the primary water data available was daily data collecte... - **Department of Interior field-measurements API** — Field measurements are physically measured values collected during a visit to the monitoring location. Field measurements consist of measurements of gage height and discharge, a... - **Department of Interior field-measurements-metadata API** — This endpoint provides metadata about field measurement collections, including when the earliest and most recent observations for a parameter occurred at a monitoring location a... - **Department of Interior hydrologic-unit-codes API** — Hydrologic units are geographic areas representing part or all of a surface drainage basin or distinct hydrologic feature identified by a unique number (HUC), and a name. The Un... - **Department of Interior latest-continuous API** — This endpoint provides the most recent observation for each time series of continuous data. Continuous data are collected via automated sensors installed at a monitoring locatio... - **Department of Interior latest-daily API** — Daily data provide one data value to represent water conditions for the day. Throughout much of the history of the USGS, the primary water data available was daily data collecte... - **Department of Interior latest-field-measurements API** — Field measurements are physically measured values collected during a visit to the monitoring location. Field measurements consist of measurements of gage height and discharge, a... - **Department of Interior medium-codes API** — Medium refers to the specific environmental medium from which the sample was collected. Medium type differs from site type because one site type, such as surface water, could ha... - **Department of Interior method-categories API** — Categorical standards for methods describing the associated data's appropriateness for an intended use. - **Department of Interior method-citations API** — Citation identifiers for water measurement methods. - **Department of Interior methods API** — Water measurement or water-quality analytical methods. Codes and descriptions defining a method for calculating or measuring the value of a water quality or quantity parameter. ... - **Department of Interior monitoring-locations API** — Location information is basic information about the monitoring location including the name, identifier, agency responsible for data collection, and the date the location was est... - **Department of Interior national-aquifer-codes API** — National aquifers are the principal aquifers or aquifer systems in the United States, defined as regionally extensive aquifers or aquifer systems that have the potential to be u... - **Department of Interior parameter-codes API** — Parameter codes are 5-digit codes and associated descriptions used to identify the constituent measured and the units of measure. Some parameter code definitions include informa... - **Department of Interior peaks API** — Annual peak flow values are the maximum instantaneous streamflow values recorded at a particular site for the entire water year from October 1 to September 30. Note that the ann... - **Department of Interior reliability-codes API** — Code indicating the reliability of the data available for the site. - **Department of Interior server API** — These APIs provide OGC-compliant interfaces to USGS water data, letting you download continuous sensor measurements, discrete field measurements, metadata about monitoring locat... - **Department of Interior site-types API** — The hydrologic cycle setting or a man-made feature thought to affect the hydrologic conditions measured at a site. Primary and secondary site types associated with data collecti... - **Department of Interior states API** — State name or territory. Includes U.S. states and foreign entities classified under FIPS as 'Principal Administrative Divisions'. - **Department of Interior statistic-codes API** — Statistic codes. - **Department of Interior time-series-metadata API** — Daily data and continuous measurements are grouped into time series, which represent a collection of observations of a single parameter, potentially aggregated using a standard ... - **Department of Interior time-zone-codes API** — The ISO 8601 standard defines time zone offsets as a numerical value added to a local time to convert it to Coordinated Universal Time (UTC), either as +hh:mm or -hh:mm, or repr... - …and 1 more, listed in full on the page. ## Agentic access (1) - **Doi Agentic Access** — 284 operations · 35 acting ## Security (2) - **Doi Authentication** — apiKey · 2 schemes - **Doi Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC ## Plans (1) - **Doi Plans Pricing** ## Tags Federal-Government, National Parks, Federal Lands, Water Resources, Wildlife, Minerals, Geospatial, Geology, Native American Affairs, Public Lands --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/doi/). Scores are computed from the provider's own public artifacts under a published rubric.