Manifest OS

Manifest OS is an AI-native law firm building an operating system for legal work that replaces the traditional billable hour with transparent fixed-fee pricing. It is profiled by Kleiner Perkins as an early-stage (2026) Enterprise AI company that applies AI to deliver predictable legal services. As of this enrichment pass Manifest OS does not publish a public developer API, SDK, MCP server, or developer portal, so it carries no API artifacts.

Manifest OS is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Legal, Legal Tech, and Law Firm.

📡 Source on GitHub
5.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
0 APIs
CompanyArtificial IntelligenceLegalLegal TechLaw FirmFixed Fee LegalEnterprise AIKleiner Perkins Portfolio

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 5.0/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Access Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Contract Governance 0.0 / 12
Discoverability 5.0 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 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 0 / 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
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.
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/manifest-os: 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 →

Source (apis.yml)

apis.yml Raw ↑ 
aid: manifest-os
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/manifest-os.png
name: Manifest OS
description: Manifest OS is an AI-native law firm building an operating system for legal work that replaces the traditional
  billable hour with transparent fixed-fee pricing. It is profiled by Kleiner Perkins as an early-stage (2026) Enterprise
  AI company that applies AI to deliver predictable legal services. As of this enrichment pass Manifest OS does not publish
  a public developer API, SDK, MCP server, or developer portal, so it carries no API artifacts.
url: https://raw.githubusercontent.com/api-evangelist/manifest-os/refs/heads/main/apis.yml
x-type: company
x-source: kleiner-perkins-portfolio
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Artificial Intelligence
- Legal
- Legal Tech
- Law Firm
- Fixed Fee Legal
- Enterprise AI
- Kleiner Perkins Portfolio
tags_raw:
- Company
- Ai
- Legal
- Legal Tech
- Law Firm
- Fixed Fee Legal
- Enterprise AI
- Kleiner Perkins Portfolio
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 0
  pass: local-v1

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