CosmoLex

CosmoLex is a cloud-based legal practice management platform that combines matter management, time tracking, billing, trust accounting, and client engagement in a single system. It provides a web services API for integrating matters, time entries, billing, trust accounting, and compliance workflows, subject to a per-user-license monthly call quota. CosmoLex serves solo practitioners and law firms up to 100 users and is designed to satisfy state bar trust accounting compliance requirements.

CosmoLex is listed with 1 API on the APIs.io network. Tagged areas include Legal, Law Practice Management, Matter Management, Billing, and Trust Accounting.

The CosmoLex catalog on APIs.io includes 1 JSON-LD context.

CosmoLex’s developer surface includes pricing, engineering blog, support, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.4/100 emerging ▬ flat Agent 3/100 human only Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 API

LegalLaw Practice ManagementMatter Management Billing Trust Accounting Time TrackingLegal ComplianceLegal Software

Kin Score

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

Composite quality — 24.4/100 · emerging

Contract Quality 3.1 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 7.8 / 17

Operational Transparency 0.9 / 11

Contract Governance 0.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 3/100 · 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 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
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

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 14.7 — up to +21.3 composite points
Developer Ergonomics scores 16.7 — up to +16.7 composite points
Operational Transparency scores 7.9 — up to +12.0 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/cosmolex/apis.yml: open an issue on github.com/api-evangelist/cosmolex 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 1

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

CosmoLex API

Web services API for CosmoLex legal practice management. Enables programmatic access to matters, time entries, billing, trust accounting, documents, and client data. Access is s...

CosmoLex API pricing

Not yet checked against CosmoLex's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure.

Plan	Price
Standard	—
Elite	—
Elite + Website	—

Plan details, limits and sources →

Rate limits

Monthly API call quota: 1000
File upload size: 32
Monthly email quota: 2500

Compiled by API Evangelist, not yet checked against CosmoLex's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Cosmolex Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Cosmolex Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Cosmolex Finops

FINOPS

Semantic Vocabularies 1

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

Cosmolex Context

11 classes · 25 properties

JSON-LD

Security Posture 1

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

Cosmolex Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: cosmolex
name: CosmoLex
description: 'CosmoLex is a cloud-based legal practice management platform that combines matter management, time tracking,
  billing, trust accounting, and client engagement in a single system. It provides a web services API for integrating matters,
  time entries, billing, trust accounting, and compliance workflows, subject to a per-user-license monthly call quota. CosmoLex
  serves solo practitioners and law firms up to 100 users and is designed to satisfy state bar trust accounting compliance
  requirements.

  '
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cosmolex.png
url: https://raw.githubusercontent.com/api-evangelist/cosmolex/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
type: Index
tags:
- Legal
- Law Practice Management
- Matter Management
- Billing
- Trust Accounting
- Time Tracking
- Legal Compliance
- Legal Software
apis:
- aid: cosmolex:cosmolex-api
  name: CosmoLex API
  description: 'Web services API for CosmoLex legal practice management. Enables programmatic access to matters, time entries,
    billing, trust accounting, documents, and client data. Access is subject to a maximum of 1,000 API calls per user license
    per month as defined in the Subscription Agreement. No public developer portal is published; integrators should contact
    CosmoLex for partner API access.

    '
  humanURL: https://www.cosmolex.com/integrations/
  baseURL: https://law.cosmolex.com
  tags:
  - Matter
  - Time Entries
  - Billing
  - Trust Accounting
  - Documents
  - Legal
  tags_raw:
  - Matters
  - Time Entries
  - Billing
  - Trust Accounting
  - Documents
  - Legal
  properties:
  - type: Documentation
    url: https://support.cosmolex.com/knowledge-base/app-integrations/
  - type: Integrations
    url: https://www.cosmolex.com/integrations/
  - type: SubscriptionAgreement
    url: https://www.cosmolex.com/subscription-agreement/
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/cosmolex/refs/heads/main/plans/cosmolex-plans-pricing.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/cosmolex/refs/heads/main/rate-limits/cosmolex-rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/cosmolex/refs/heads/main/finops/cosmolex-finops.yml
common:
- type: DomainSecurity
  url: security/cosmolex-domain-security.yml
- type: Plans
  url: https://raw.githubusercontent.com/api-evangelist/cosmolex/refs/heads/main/plans/cosmolex-plans-pricing.yml
- type: RateLimits
  url: https://raw.githubusercontent.com/api-evangelist/cosmolex/refs/heads/main/rate-limits/cosmolex-rate-limits.yml
- type: FinOps
  url: https://raw.githubusercontent.com/api-evangelist/cosmolex/refs/heads/main/finops/cosmolex-finops.yml
- type: Website
  url: https://www.cosmolex.com/
- type: Pricing
  url: https://www.cosmolex.com/pricing/
- type: Blog
  url: https://www.cosmolex.com/blog/
- type: Support
  url: https://support.cosmolex.com/
- type: Login
  url: https://law.cosmolex.com/login/
- type: TermsOfService
  url: https://www.cosmolex.com/subscription-agreement/
- type: PrivacyPolicy
  url: https://www.cosmolex.com/privacy-policy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

CosmoLex API — frequently asked questions

Does CosmoLex have an API?

Yes. APIs.io lists 1 API from CosmoLex, including CosmoLex API.

How much does the CosmoLex API cost?

APIs.io lists 3 pricing plans for CosmoLex, with each plan's price, limits and inclusions under Pricing on this page.

Is the CosmoLex API ready for AI agents?

CosmoLex has a Kin Score of 24.4 out of 100 (emerging) and an Agent Readiness score of 2.5 (human-only), scored by API Evangelist on 2026-11-06.

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