Anteroom

Anteroom is a structured legal‑review tool that helps organizations assess AI launch compliance. It provides curated, up‑to‑date regulatory insights across jurisdictions, offering a searchable corpus of statutes, guidance, and case law. Users can input launch details to receive a tailored analysis of applicable regulations, obligations, and risk mitigations, supporting responsible AI deployment.

Anteroom is listed with 2 APIs on the APIs.io network. Tagged areas include Artificial Intelligence, Legal Tech, Compliance, Regulations, and Startups.

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

Anteroom’s developer surface includes changelog, documentation, support, engineering blog, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

19.6/100 emerging ▼ -5.4 Agent 16/100 agent aware Heartbeat 37/100 slowing Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessOpen

2 APIs

Artificial Intelligence Legal Tech Compliance Regulations Startups

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 19.6/100 · emerging

Contract Quality 3.8 / 21

Developer Ergonomics 1.4 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.9 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.4 / 15

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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

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

MCP Tool Quality 6 / 6

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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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 17.8 — up to +20.6 composite points
Developer Ergonomics scores 8.3 — up to +18.3 composite points
Access Clarity scores 10.5 — up to +17.9 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/anteroom-so/apis.yml: open an issue on github.com/api-evangelist/anteroom-so to ask a question or point us at an artifact you publish. 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.

Anteroom MCP

Read‑only MCP JSON‑RPC server exposing tools for AI regulatory data such as vendor commitments, framework version history, corpus search, partnership patterns and listings.

Anteroom API

Anteroom API as documented publicly: 1 operations. Contract generated from the documentation by API Evangelist (2026-11-01); not the provider's own document.

Anteroom API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Anteroom So Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Anteroom So Rate Limits

0 limits

RATE LIMITS

Semantic Vocabularies 1

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

Anteroom So Context

1 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Anteroom API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

JSON Schema 1

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

PostMcpRequest

3 properties

JSON SCHEMA

Security Posture 2

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

Anteroom So Authentication

0 schemes

SECURITY

Anteroom So Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Anteroom So Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

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 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

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: anteroom-so
name: Anteroom
description: Anteroom is a structured legal‑review tool that helps organizations assess AI launch compliance. It provides
  curated, up‑to‑date regulatory insights across jurisdictions, offering a searchable corpus of statutes, guidance, and case
  law. Users can input launch details to receive a tailored analysis of applicable regulations, obligations, and risk mitigations,
  supporting responsible AI deployment.
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: low
  probe_state: unreadable
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://anteroom.so/opengraph-image
url: https://artifacts.apis.io/anteroom-so/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Public MCP documentation exists but no machine‑readable OpenAPI/GraphQL/AsyncAPI spec is published.
  evidence:
  - url: https://anteroom.so/mcp
    status: 200
  checked: '2026-11-01'
tags:
- Artificial Intelligence
- Legal Tech
- Compliance
- Regulations
- Startups
tags_raw:
- AI
- LegalTech
- Compliance
- Regulation
- Startup
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/anteroom-so-rules.yml
- type: JSONLD
  url: json-ld/anteroom-so-context.jsonld
- type: Vocabulary
  url: vocabulary/anteroom-so-vocabulary.yml
- type: DataModel
  url: data-model/anteroom-so-data-model.yml
- type: Conformance
  url: conformance/anteroom-so-conformance.yml
- type: LLMsTxt
  url: llms/anteroom-so-llms.txt
- type: Hosts
  url: hosts/anteroom-so-hosts.yml
- type: Vendors
  url: vendors/anteroom-so-vendors.yml
- type: TermsOfService
  url: https://anteroom.so/terms
- type: PrivacyPolicy
  url: https://anteroom.so/privacy
- type: ChangeLog
  url: https://anteroom.so/corpus/changelog
- type: DomainSecurity
  url: security/anteroom-so-domain-security.yml
- type: Website
  url: https://anteroom.so/
- type: Documentation
  url: https://anteroom.so/mcp
- type: Support
  url: https://anteroom.so/about
- type: Blog
  url: https://anteroom.so/blog
apis:
- name: Anteroom MCP
  description: Read‑only MCP JSON‑RPC server exposing tools for AI regulatory data such as vendor commitments, framework version
    history, corpus search, partnership patterns and listings.
  humanURL: https://anteroom.so/mcp
  baseURL: https://mcp.anteroom.so
  aid: anteroom-so:anteroom-mcp
- aid: anteroom-so:anteroom-so-api
  name: Anteroom API
  description: 'Anteroom API as documented publicly: 1 operations. Contract generated from the documentation by API Evangelist
    (2026-11-01); not

    the provider''s own document.'
  humanURL: https://anteroom.so/mcp
  baseURL: https://mcp.anteroom.so
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/anteroom-so-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/anteroom-so-post-mcp-request-schema.json
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Anteroom API — frequently asked questions

Does Anteroom have an API?

Yes. APIs.io lists 2 APIs from Anteroom, including Anteroom MCP and Anteroom API.

Is there an OpenAPI specification for the Anteroom API?

Yes. APIs.io indexes 1 OpenAPI specification for Anteroom, each linked for download from this page.

How do I authenticate with the Anteroom API?

Anteroom documents its authentication (0 schemes). The details are profiled on APIs.io as Anteroom So Authentication.

Is the Anteroom API ready for AI agents?

Anteroom has a Kin Score of 19.6 out of 100 (emerging) and an Agent Readiness score of 15.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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