generated: '2026-07-27'
method: searched
source: >-
  Registry searches of PyPI, npm, Maven Central, RubyGems, crates.io, pkg.go.dev and
  Packagist, plus the CAISO developer portal and GitHub, on 2026-07-27
description: >-
  CAISO publishes no client libraries in any language. There is no first-party SDK, no CLI,
  and no CAISO-owned source repository for API tooling — the "CAISO" GitHub organization
  that exists (github.com/CAISO) has one public repository, a fork of the Craft CMS
  composer starter, with no members listed and nothing connecting it to the OASIS API, so
  it is not recorded as a first-party developer surface. Every client library that exists
  for OASIS is community-built. They are listed here because they are how most consumers
  actually reach this API, but none is official and none is endorsed by CAISO.
official_sdks: 0
packages:
- language: python
  registry: pypi
  name: gridstatus
  version_seen: 0.36.0
  url: https://pypi.org/project/gridstatus/
  install: pip install gridstatus
  source: https://github.com/gridstatus/gridstatus
  official: false
  description: >-
    Community multi-ISO client (CAISO, ERCOT, MISO, PJM, NYISO, ISO-NE and others) that
    wraps the OASIS Download API and the Today's Outlook feeds in pandas dataframes.
- language: python
  registry: pypi
  name: pycaiso
  version_seen: 0.2.7
  url: https://pypi.org/project/pycaiso/
  install: pip install pycaiso
  source: https://github.com/seanswe/pycaiso
  official: false
  description: Single-purpose community wrapper for the CAISO OASIS API.
- language: python
  registry: pypi
  name: pyiso
  version_seen: 0.4.0
  url: https://pypi.org/project/pyiso/
  install: pip install pyiso
  source: https://github.com/WattTime/pyiso
  official: false
  description: >-
    WattTime's multi-ISO client library for power grid data sources, including CAISO.
    Long-standing but no longer actively maintained.
registries_probed:
- {registry: pypi, first_party_hits: 0}
- {registry: npm, first_party_hits: 0, note: 'searches for "caiso" return unrelated packages (a Siemens demo component, an n8n node)'}
- {registry: maven-central, first_party_hits: 0}
- {registry: nuget, first_party_hits: 0}
- {registry: rubygems, first_party_hits: 0}
- {registry: packagist, first_party_hits: 0}
- {registry: crates.io, first_party_hits: 0}
- {registry: pkg.go.dev, first_party_hits: 0}