# NAESB

**Canonical:** https://apis.io/providers/naesb/  
**Website:** https://www.naesb.org/  
**APIs profiled:** 2

The North American Energy Standards Board (NAESB) is the non-profit, industry-consensus standards development organization formed in 1994 that writes the business practice standards for the North American wholesale and retail natural gas and electricity markets, organized into four quadrants — Wholesale Electric (WEQ), Retail Electric (REQ), Wholesale Gas (WGQ) and Retail Gas (RGQ). Headquartered in Houston, Texas, its home market is the United States (with Canadian and Mexican participation). NAESB sits upstream of every utility, ISO/RTO and energy-data platform in the value chain: it authors REQ.21 Energy Services Provider Interface (ESPI), the standard that is the basis of every Green Button implementation in North America, and it operates the NAESB Electric Industry Registry (EIR) that underpins electronic tagging across the wholesale electric market. Its API posture is deliberately split and must not be overstated. NAESB is not a data holder and no consumer-data mandate applies to it; the Green Button standard it publishes is adopted by US utilities purely voluntarily, with no federal obligation behind it. The specifications themselves are copyright-protected and paywalled — $8,000/year membership, $2,000 per quadrant version, or $250 per individual standard — with only a free, view-only, three-business-day evaluation waiver for non-members. The single genuinely open artifact is the set of ESPI XML schemas, released under Apache 2.0 as a documented one-time exception to the NAESB Copyright Policy and downloadable anonymously after a one-click terms-of-use acknowledgement. The one real API NAESB operates, the EIR webRegistry SOAP service administered by OATI, is closed: it requires a paid registry subscription and a digitally signed X.509 certificate issued by an NAESB-Authorized Certification Authority, and its endpoint could not even complete a TLS handshake anonymously. Open standard schemas, closed standards text, closed registry API, no consumer data and no open market data of its own.

## Kin Score — 33.0 / 100 (thin)

Scored 2026-08-19 under rubric 0.12.0. Trend: rising (+7.8 from 25.2).

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 28.2 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 15.8 |
| Developer Ergonomics | 28.0 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

Regulatory layer — **Energy & Utilities**: 40.5 (matched via tags).

## Agent readiness — 28.4 (agent-aware)

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

## Access

Paid membership or per-document purchase · Registry API requires accredited certificate — onboarding: unknown, pricing: paid, trial: yes (confidence: high).

## APIs (2)

- **NAESB REQ.21 Energy Services Provider Interface (ESPI)** — The NAESB REQ.21 ESPI Model Business Practices define the data exchange protocol for transferring retail energy usage information from a utility (Data Custodian) to a Third Part...
- **NAESB Electric Industry Registry (EIR) webRegistry Web Services** — The NAESB Electric Industry Registry is the central repository of registry information used by the North American wholesale electric industry for electronic tagging; it replaced...

## MCP servers (1)

- **naesb-mcp.yml**

## Security (2)

- **Naesb Authentication** — mutualTLS/oauth2 · 2 schemes
- **Naesb Domain Security** — TLSv1.2 · DMARC

## Tags

Energy, United States, Standards, Utilities, Electricity, Gas, Green Button, Smart Metering, Energy Markets, Grid

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