Singularity

Singularity Energy is a Boston-based grid decarbonization data company. Its Grid Carbon API delivers hourly, location-specific electricity emissions intelligence - generated, consumed, and marginal carbon intensity, fuel mix, generation events, interchange, and 48-hour emissions forecasts across ISOs and balancing authorities in the U.S. and Canada.

Singularity publishes 3 APIs on the APIs.io network: Emissions API, Events API, and Interchange API. Tagged areas include Energy, Carbon Emissions, Grid, Sustainability, and Carbon Intensity.

Singularity’s developer surface includes authentication, engineering blog, documentation, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
34.5/100 thin ▼ -5.3 Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serveFree trial⚡ Free to try
3 APIs
EnergyCarbon EmissionsGridSustainabilityCarbon Intensity

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 34.5/100 · thin
Contract Quality 13.4 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/singularity-energy: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

Singularity Emissions API

The Emissions API from Singularity — 3 operation(s) for emissions.

Singularity Events API

The Events API from Singularity — 4 operation(s) for events.

Singularity Interchange API

The Interchange API from Singularity — 2 operation(s) for interchange.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Singularity Grid Carbon API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Singularity Energy Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Singularity Energy Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Singularity Energy Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Singularity Energy Authentication

apiKey · 1 scheme

SECURITY

Singularity Energy Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Singularity Energy Agentic Access

9 operations · 3 acting

9 operations · 3 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

Blog
Blog
 LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: singularity-energy
url: https://raw.githubusercontent.com/api-evangelist/singularity-energy/refs/heads/main/apis.yml
name: Singularity
kind: company
description: Singularity Energy is a Boston-based grid decarbonization data company. Its Grid Carbon API delivers hourly,
  location-specific electricity emissions intelligence - generated, consumed, and marginal carbon intensity, fuel mix, generation
  events, interchange, and 48-hour emissions forecasts across ISOs and balancing authorities in the U.S. and Canada.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Freemium (free trial) · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/singularity-energy.png
tags:
- Energy
- Carbon Emissions
- Grid
- Sustainability
- Carbon Intensity
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.19'
apis:
- aid: singularity-energy:singularity-energy-emissions-api
  name: Singularity Emissions API
  description: The Emissions API from Singularity — 3 operation(s) for emissions.
  humanURL: https://docs.singularity.energy/docs/singularity-api/grid-carbon-api
  baseURL: https://api.singularity.energy
  tags:
  - Emissions
  properties:
  - type: OpenAPI
    url: openapi/singularity-energy-emissions-api-openapi.yml
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/grid-carbon-api
  - type: APIReference
    url: https://docs.singularity.energy/docs/singularity-api/key-concepts
  - type: PostmanCollection
    url: collections/singularity-energy.postman_collection.json
  - type: OpenCollection
    url: collections/singularity-energy.opencollection.json
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/key-concepts
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/region-flow
- aid: singularity-energy:singularity-energy-events-api
  name: Singularity Events API
  description: The Events API from Singularity — 4 operation(s) for events.
  humanURL: https://docs.singularity.energy/docs/singularity-api/grid-carbon-api
  baseURL: https://api.singularity.energy
  tags:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/singularity-energy-events-api-openapi.yml
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/grid-carbon-api
  - type: APIReference
    url: https://docs.singularity.energy/docs/singularity-api/key-concepts
  - type: PostmanCollection
    url: collections/singularity-energy.postman_collection.json
  - type: OpenCollection
    url: collections/singularity-energy.opencollection.json
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/key-concepts
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/region-flow
- aid: singularity-energy:singularity-energy-interchange-api
  name: Singularity Interchange API
  description: The Interchange API from Singularity — 2 operation(s) for interchange.
  humanURL: https://docs.singularity.energy/docs/singularity-api/grid-carbon-api
  baseURL: https://api.singularity.energy
  tags:
  - Interchange
  properties:
  - type: OpenAPI
    url: openapi/singularity-energy-interchange-api-openapi.yml
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/grid-carbon-api
  - type: APIReference
    url: https://docs.singularity.energy/docs/singularity-api/key-concepts
  - type: PostmanCollection
    url: collections/singularity-energy.postman_collection.json
  - type: OpenCollection
    url: collections/singularity-energy.opencollection.json
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/key-concepts
  - type: Documentation
    url: https://docs.singularity.energy/docs/singularity-api/region-flow
common:
- type: AgenticAccess
  url: agentic-access/singularity-energy-agentic-access.yml
- type: DomainSecurity
  url: security/singularity-energy-domain-security.yml
- type: Authentication
  url: authentication/singularity-energy-authentication.yml
- url: https://medium.com/feed/singularity-energy
  type: Blog
- type: GitHubOrganization
  url: https://github.com/singularity-energy
- type: LinkedIn
  url: https://www.linkedin.com/company/singularity-energy
- type: Website
  url: https://www.singularity.energy
- type: Documentation
  url: https://docs.singularity.energy
- type: Plans
  url: plans/singularity-energy-plans-pricing.yml
- type: RateLimits
  url: rate-limits/singularity-energy-rate-limits.yml
- type: FinOps
  url: finops/singularity-energy-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com