Subquadratic

Subquadratic builds advanced AI decision models for enterprise workflows, offering the SubQ Snap long‑context multimodal model and SubQ Small language model. Their platform enables structured, high‑token decision making, integrates with enterprise tools, and provides APIs for developers to embed decision intelligence into applications. Founded by researchers and engineers, Subquadratic focuses on real‑world enterprise use cases with extensive context handling.

Subquadratic is listed with 2 APIs on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Enterprise, Decision Models, and Long Context.

The Subquadratic catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Subquadratic’s developer surface includes authentication, documentation, engineering blog, pricing, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.4/100 thin Agent 25/100 agent aware Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

2 APIs

Company Artificial Intelligence Enterprise Decision Models Long Context

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 29.4/100 · thin

Contract Quality 5.6 / 21

Developer Ergonomics 4.0 / 17

Access Clarity 6.7 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 4.9 / 9

Regulatory Posture 4.1 / 15

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/subq: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

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

Subquadratic API

API for Subquadratic's AI decision models and platform services. Documentation is hosted at docs.subq.ai and the API is accessed via subq.ai endpoints.

Subquadratic API

Subquadratic API as documented publicly: 6 operations. Contract generated from the documentation by API Evangelist (2026-10-19); not the provider's own document.

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Subq Context

5 classes · 17 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Subquadratic API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

JSON Schema 5

Standalone JSON Schema definitions for this provider's data models.

DeleteV1FilesFileidResponse

3 properties

JSON SCHEMA

GetV1FilesFileidResponse

8 properties

JSON SCHEMA

PostV1FilesResponse

3 properties

JSON SCHEMA

PostV1ResponsesResponse

5 properties

JSON SCHEMA

PostV1SystemoneResponse

3 properties

JSON SCHEMA

Security Posture 2

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

Subq Authentication

1 scheme

SECURITY

Subq Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: subq
name: Subquadratic
image: https://subq.ai/images/introducing-subq.png
description: Subquadratic builds advanced AI decision models for enterprise workflows, offering the SubQ Snap long‑context
  multimodal model and SubQ Small language model. Their platform enables structured, high‑token decision making, integrates
  with enterprise tools, and provides APIs for developers to embed decision intelligence into applications. Founded by researchers
  and engineers, Subquadratic focuses on real‑world enterprise use cases with extensive context handling.
url: https://raw.githubusercontent.com/api-evangelist/subq/refs/heads/main/apis.yml
x-type: company
x-source: harvest:g2-catalog
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-19 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-18'
modified: '2026-10-18'
tags:
- Company
- Artificial Intelligence
- Enterprise
- Decision Models
- Long Context
tags_raw:
- Company
- AI
- Enterprise
- DecisionModels
- LongContext
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/subq-rules.yml
- type: JSONLD
  url: json-ld/subq-context.jsonld
- type: Vocabulary
  url: vocabulary/subq-vocabulary.yml
- type: DataModel
  url: data-model/subq-data-model.yml
- type: Authentication
  url: authentication/subq-authentication.yml
- type: Conformance
  url: conformance/subq-conformance.yml
- type: LLMsTxt
  url: llms/subq-llms.txt
- type: Hosts
  url: hosts/subq-hosts.yml
- type: Vendors
  url: vendors/subq-vendors.yml
- type: TrustCenter
  url: https://trust.subq.ai/
- type: DomainSecurity
  url: security/subq-domain-security.yml
- type: Website
  url: https://subq.ai/
- type: Documentation
  url: https://docs.subq.ai/
- type: Blog
  url: https://subq.ai/blog
- type: Pricing
  url: https://subq.ai/pricing
- type: TermsOfService
  url: https://subq.ai/terms
- type: PrivacyPolicy
  url: https://subq.ai/privacy-policy
apis:
- name: Subquadratic API
  description: API for Subquadratic's AI decision models and platform services. Documentation is hosted at docs.subq.ai and
    the API is accessed via subq.ai endpoints.
  humanURL: https://docs.subq.ai/
  baseURL: null
  aid: subq:subquadratic-api
- aid: subq:subq-api
  name: Subquadratic API
  description: 'Subquadratic API as documented publicly: 6 operations. Contract generated from the documentation by API Evangelist
    (2026-10-19);

    not the provider''s own document.'
  humanURL: https://docs.subq.ai/endpoints/files-api
  baseURL: https://api.subq.ai
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/subq-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/subq-post-v1-systemone-response-schema.json
  - type: JSONSchema
    url: json-schema/subq-get-v1-files-fileid-response-schema.json
  - type: JSONSchema
    url: json-schema/subq-delete-v1-files-fileid-response-schema.json
  - type: JSONSchema
    url: json-schema/subq-post-v1-responses-response-schema.json
  - type: JSONSchema
    url: json-schema/subq-post-v1-files-response-schema.json
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  method: derived
  generated: '2026-10-19'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company publishes developer documentation but serves no machine-readable contract from it
  evidence:
  - url: https://subq.ai/
    status: 200
x-enrichment:
  date: '2026-10-19'
  status: enriched
  artifacts_added: 22
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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