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Full detail: Where this data comes from
Southwest Power Pool (SPP) is a nonprofit Regional Transmission Organization regulated by the Federal Energy Regulatory Commission and headquartered in Little Rock, Arkansas. Founded in 1941 and approved as an RTO in 2004, SPP operates the Integrated Marketplace day-ahead and real-time balancing markets, the Western Energy Imbalance Service (WEIS) market, Western Reliability Coordination services, and is building the Markets+ day-ahead market for the West with a targeted 2027 go-live. SPP sits at the wholesale layer of the United States energy value chain: it dispatches generation, prices congestion, plans transmission, and settles the market for its member utilities — it has no retail customers, so no consumer energy-data mandate such as Green Button applies to it. Its API posture is a clean split. Market and grid data is genuinely open: locational marginal prices, market clearing prices, operating reserves, load, generation mix, VER curtailments and outage capacity are served anonymously as CSV from the SPP Portal file browser and from an anonymous public FTP site, with an Esri ArcGIS REST price-contour service alongside — no account, no key, no licence click-through. Everything a market participant actually transacts against is the opposite: the Integrated Marketplace SOAP web services, the Settlement Management System API, and the FERC Order 881 LEP/TROLIE ratings API are member-only, require an OATI webCARES x.509 digital certificate plus an SPP UAA role, and SPP publishes no base URL and no OpenAPI for them.
Areas: Energy · United States · Energy Markets · Electricity · Grid · Utilities · Renewables · Market Data · Transmission · System Operator
Everything profiled for Southwest Power Pool is published on APIs.io rather than in this repository. Start at the provider page — apis.io/providers/spp/ — or go straight to one of the APIs or properties below.
- SPP Public Data FTP — SPP's officially documented programmatic interface to its public data. The SPP Public Data Access guide (v3.0, July 2023) names FTP as the programmatic…
- SPP Portal Public Data File Browser API — The HTTP download service behind the SPP Portal public data pages. Anonymous GET requests of the form /file-browser-api/download/{dataset}?path={file}…
- SPP Portal Chart API — JSON and CSV chart feeds serving the SPP Portal dashboards. Confirmed anonymously on 2026-07-27: /chart-api/gen-mix/asChart and…
- SPP Price Contour Map ArcGIS REST Services — An Esri ArcGIS Server REST directory serving the geospatial layers behind SPP's price contour map. Confirmed anonymously on 2026-07-27 at ArcGIS 11.5: the…
- SPP Integrated Marketplace Markets Web Service — The SOAP web and notification services market participants use to submit offers and bids and retrieve results from the SPP Integrated Marketplace, with WEIS…
- Southwest Power Pool Forecasting API — The Forecasting API operations define the exchange of forecasted ratings, including the 240-hour-ahead forecasted AAR data exchange required by FERC Order…
- Southwest Power Pool Monitoring Sets API — Monitoring Sets are named sets of power system resources that may be used to filter ratings and limits…
- Southwest Power Pool Seasonal API — Seasonal ratings are static ratings associated with extended durations, typically months. These are typically used in both planning and operations. Power…
- Southwest Power Pool Seasonal Overrides API — A Seasonal Override instructs the system to use a temporary static rating instead of any concurrent Seasonal Rating for a resource. A typical use case is a…
- Southwest Power Pool Temporary AAR Exceptions API — A Temporary AAR Exception is provided by the Ratings Provider when a Ratings Obligation cannot be…
- Southwest Power Pool Realtime API — If permitted by the Clearinghouse Provider, its Ratings Providers can use these functions to exchange real-time ratings, supplementing or replacing…
Each property below is a page on APIs.io carrying the machine-readable artifact and what it says.
Example requests and responses.
Postman and Open Collection request collections.
OpenAPI overlays, including conversational phrasing for each operation.
Authentication, trust centre, and vulnerability disclosure.
The permissions the API asks for.
Published request limits.
Links to the company's own pages. This repository publishes no copy of their specifications — the canonical document is theirs and lives at the URLs below.
- Website
- Documentation
- Getting started
- Sign up
- Support
- Blog
- Compliance
- Terms of service
- Privacy policy
Kin Score 45.2 — developing · rubric 0.25.0 · scored 2026-10-23
| Facet | Score |
|---|---|
| Discoverability | 57.1 |
| Contract quality | 56.9 |
| Contract governance | 4.5 |
| Operational transparency | 5.3 |
| Developer ergonomics | 62.5 |
| Access clarity | 42.1 |
Agent readiness 43.0 — agent-ready (gated down from agent-native)
| Agent-readiness dimension | Result |
|---|---|
| Spec Presence | yes |
| Agentic Access | — |
| Reversibility Documented | — |
| MCP Server | — |
| Auth Clarity | served (partial credit) |
| Idempotency | — |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | verified |
| Event Surface Described | — |
| Agent Skills | derived (partial credit) |
| Well Known Catalog | yes |
| Consent Identity | — |
| Agent Card | — |
| Dry Run Mode | — |
| Delegated Identity | — |
| Protected Resource Metadata | — |
| Dynamic Client Registration | yes |
| Agentic Commerce | — |
| Pagination Ratio | — |
| Operation Distinctiveness | distinct |
Regulatory alignment 38.5 — Energy & Utilities
The rubric is published at github.com/api-evangelist/kin-score. The per-check breakdown behind these numbers — which checks were earned, partial or missed — along with score history and how this provider compares to its peers, is available at apis.io/providers/spp/.
API Evangelist profiles a company's public API surface the way a developer would find it: the website, developer portal and documentation, the specifications it publishes, its public repositories, and its pricing, status and changelog pages. From that it derives the properties above — contracts split per API, workflows, schemas, collections, governance rules, plans and rate limits — and scores them against the published Kin Score rubric.
The artifacts are published on APIs.io, not in this repository. This repository is the public record for Southwest Power Pool: the place to say something is wrong, missing or out of date, and to ask for a re-score or a removal.
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