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Nomos Usage API

The Usage API from Nomos — 3 operation(s) for usage.

Nomos Usage API is one of 12 APIs that Nomos publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Usage. The published artifact set on APIs.io includes an OpenAPI specification, an AsyncAPI specification, API documentation, and an API reference.

This API exposes 4 operations across 3 paths, and defines 13 schemas. It is described by OpenAPI 3.0.0, at version 2026-05-27.curie.

Requests are made against a single base URL, https://api.nomos.energy.

4 operations 3 paths 13 schemas 2 GET2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.0
API Version
2026-05-27.curie
Base URL
https://api.nomos.energy
Authentication
HTTP Bearer, HTTP Basic
Resource Areas
1

Authentication & Security 2

Nomos Usage API declares 2 security schemes for authenticating requests. It accepts HTTP bearer tokens (JWT) (Bearer). It accepts HTTP basic authentication (Basic).

Paths & Operations 4

Across 3 paths, the API surfaces 4 operations — 2 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Usage 4
GET
/subscriptions/{id}/usage
Retrieve usage data
4 params → 200400401402403404405409
GET
/meter-readings
List meter readings
3 params → 200400401402403404405409
POST
/meter-readings
Create a meter reading
body → 200400401402403404405409
POST
/load-forecasts
Create a load forecast
body → 200400401402403404405409

Schemas 13

The contract defines 13 schemas that model the data the API accepts and returns. The most detailed are MeterReading (9 properties), ErrMethodNotAllowed (5 properties), ErrForbidden (5 properties), ErrTooManyRequests (5 properties). Each schema is shown below with its type and property counts.

InsertMeterReading
object
3 properties 2 required
ErrUnauthorized
object
5 properties 4 required
MeterReading
object
9 properties 9 required
ErrInternalServerError
object
5 properties 4 required
ErrConflict
object
5 properties 4 required
ErrNotFound
object
5 properties 4 required
LoadForecasts
object
5 properties 5 required
ErrUnprocessableEntity
object
5 properties 4 required
ErrBadRequest
object
5 properties 4 required
ErrPaymentRequired
object
5 properties 4 required
ErrTooManyRequests
object
5 properties 4 required
ErrForbidden
object
5 properties 4 required
ErrMethodNotAllowed
object
5 properties 4 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

nomos-usage-api-openapi.yml Raw ↑

Other APIs Nomos publishes across the network.

Nomos Authentication API
Nomos Customers API
Nomos Events API
Nomos Grid Fee Reductions API
Nomos Invoices API
Nomos Leads API
Nomos Market Partners API
Nomos Plans API
Nomos Prices API
Nomos Smart Meter Orders API
Nomos Subscriptions API