Blue J

Blue J is an AI-powered tax research platform that delivers defensible, source-backed answers to complex tax questions in seconds, drawing on primary law plus Tax Notes and IBFD content. Built for tax professionals, the platform supports advisory, compliance, tax writing, and training workflows, and is trusted by 4,000+ firms including Crowe, RSM, and Larson. Blue J is a SaaS product accessed through its web application at app.askbluej.com; it does not currently publish a public developer API, SDK, or MCP server. This profile was surfaced as a portfolio company of Sapphire Ventures and enriched by the API Evangelist pipeline from Blue J's own public website, security, pricing, and trust-center pages.

Blue J is profiled on the APIs.io network. Tagged areas include Company, Ai, Tax, Legal, and Research.

Blue J’s developer surface includes pricing, support, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

21.5/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyAiTaxLegalResearchComplianceSaaSProfessional Services

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 21.5/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 12.1 / 20

Operational Transparency 1.4 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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

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/blue-j: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

Login

Access & Security 5

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Security

Security

Compliance

Compliance

Operate 1

Status, limits, changes, and where to get help

Support

Support

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

Source (apis.yml)

aid: blue-j
name: Blue J
description: Blue J is an AI-powered tax research platform that delivers defensible, source-backed answers to complex tax
  questions in seconds, drawing on primary law plus Tax Notes and IBFD content. Built for tax professionals, the platform
  supports advisory, compliance, tax writing, and training workflows, and is trusted by 4,000+ firms including Crowe, RSM,
  and Larson. Blue J is a SaaS product accessed through its web application at app.askbluej.com; it does not currently publish
  a public developer API, SDK, or MCP server. This profile was surfaced as a portfolio company of Sapphire Ventures and enriched
  by the API Evangelist pipeline from Blue J's own public website, security, pricing, and trust-center pages.
url: https://raw.githubusercontent.com/api-evangelist/blue-j/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- sapphire-ventures
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://www.bluej.com/favicon.ico
tags:
- Company
- Ai
- Tax
- Legal
- Research
- Compliance
- SaaS
- Professional Services
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: TrustCenter
  url: security/blue-j-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/blue-j-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/blue-j-domain-security.yml
- type: Website
  url: https://www.bluej.com/
- type: Pricing
  url: https://www.bluej.com/pricing
- type: Login
  url: https://app.askbluej.com/
- type: Security
  url: https://www.bluej.com/security
- type: Compliance
  url: https://app.drata.com/trust/9cbd134e-0c38-11ee-865f-029d78a187d9
- type: TermsOfService
  url: https://www.bluej.com/terms-of-use
- type: PrivacyPolicy
  url: https://www.bluej.com/privacy-notice
- type: Support
  url: https://www.bluej.com/resources
- type: Blog
  url: https://www.bluej.com/resources
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Blue J

Kin Score

Security Posture 3

Blue J Domain Security

Blue J Vulnerability Disclosure

Blue J Trust Center

Resources