# ERCOT

**Canonical:** https://apis.io/providers/ercot/  
**Website:** https://www.ercot.com/  
**APIs profiled:** 5

The Electric Reliability Council of Texas (ERCOT) is the independent system operator that manages the flow of electric power to roughly 27 million Texas customers on the ERCOT Interconnection, running the wholesale Day-Ahead and Real-Time energy markets, ancillary services, congestion revenue rights, and retail switching for the competitive Texas market. Its home market is the United States (Texas). ERCOT sits at the wholesale/system-operator layer of the energy value chain, upstream of the transmission and distribution utilities (Oncor, CenterPoint, AEP Texas, TNMP) and the retail electric providers that serve end customers. Its API posture is a clean split: market and grid data are genuinely open — ERCOT publishes a real, versioned OpenAPI 3.0 for the Public Data API covering 106 EMIL data-product endpoints (locational marginal prices, settlement point prices, system load, wind and solar production, ancillary services, outage capacity), and the Market Information System still serves public report archives anonymously with no account at all. Consumer energy data is a different story: ERCOT operates no consumer usage API and implements no Green Button / ESPI surface. Texas residential interval data lives in Smart Meter Texas, which is operated by the joint Transmission and Distribution Utilities under PUCT oversight, not by ERCOT. The market-participant SOAP estate (ERCOT Web Services, MarkeTrak, Retail API) is documented publicly on GitHub but reachable only by certified market participants.

## Kin Score — 52.6 / 100 (developing)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 52.6).

| Facet | Score |
|---|---|
| Discoverability | 83.3 |
| Contract Quality | 67.9 |
| Governance | 11.5 |
| Operational Transparency | 57.9 |
| Developer Ergonomics | 53.8 |
| Commercial Clarity | 34.2 |

Regulatory layer — **Energy & Utilities**: 56.8 (matched via tags).

## Agent readiness — 47.1 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| MCP Server | derived |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | documented |
| Event Surface Described | derived |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free · Self-serve registration — onboarding: self-serve, pricing: free, trial: no (confidence: high).

## APIs (5)

- **ERCOT Public Data API** — RESTful access to ERCOT Market Information List (EMIL) public data products — 106 documented endpoints spanning real-time and day-ahead locational marginal prices, settlement po...
- **ERCOT ESR Public Data API** — Energy Storage Resource public data, launched May 29, 2025 per the ERCOT Public Data API release notes, beginning with four-second ESR charging MW telemetry (GET /rptesr-m/4_sec...
- **ERCOT Web Services (EWS)** — ERCOT's SOAP web-services estate for Nodal market participants — the Market Information Service, Market Transaction Service (bid and offer submission via BidSet), Resource Param...
- **ERCOT MarkeTrak API** — SOAP API over MarkeTrak, ERCOT's retail-market issue tracking system, supporting QueryList, QueryDetail, Update, and Submit operations against retail transaction issues. Applica...
- **ERCOT Retail API** — SOAP web service supporting Texas Standard Electronic Transactions (TX SET) between ERCOT, Transmission and Distribution Service Providers, and Retail Electric Providers — the m...

## MCP servers (1)

- **ercot-mcp.yml**

## Security (2)

- **Ercot Authentication** — apiKey/http/oauth2 · 4 schemes
- **Ercot Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Energy, United States, Electricity, Energy Markets, Grid, System Operator, Texas, Renewables, Demand Response, Open Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/ercot/). Scores are computed from the provider's own public artifacts under a published rubric.