Pax

Pax (Pax AI) is a San Francisco-based artificial intelligence company that automates U.S. duty drawback claims, letting importers, retailers, and manufacturers reclaim overpaid tariffs and import duties. Branding itself the "AI Broker for Tariff Refunds" and "TurboTax for import duty rebate," Pax uses proprietary AI to automate data extraction, validation, transaction matching, refund calculation, and electronic claim submission to U.S. Customs and Border Protection with minimal manual effort. Founded by former duty-drawback experts and engineers from Charter Brokerage, MIT, Amazon, Flexport, and Brex, Pax is backed by Y Combinator, Initialized Capital, General Catalyst, Flexport, Soma Capital, Basis Set Ventures, and others. This profile was enriched by the API Evangelist pipeline.

Pax publishes 1 API on the APIs.io network. Tagged areas include Company, Enterprise Saas, Artificial Intelligence, Trade Finance, and Customs.

Pax’s developer surface includes engineering blog and 3 more developer resources.

🌐 Visit website 📡 Source on GitHub
9.7/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
1 APIs
CompanyEnterprise SaasArtificial IntelligenceTrade FinanceCustomsDuty DrawbackTariffsFintechSupply Chain

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 9.7/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 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/pax: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Pax API

Live JSON API host for Pax AI (api.paxai.com). A health endpoint is publicly reachable; no public OpenAPI, reference documentation, or developer program was discoverable at enri...

Security Posture 1

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

Pax Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: pax
name: Pax
description: Pax (Pax AI) is a San Francisco-based artificial intelligence company that automates U.S. duty drawback claims,
  letting importers, retailers, and manufacturers reclaim overpaid tariffs and import duties. Branding itself the "AI Broker
  for Tariff Refunds" and "TurboTax for import duty rebate," Pax uses proprietary AI to automate data extraction, validation,
  transaction matching, refund calculation, and electronic claim submission to U.S. Customs and Border Protection with minimal
  manual effort. Founded by former duty-drawback experts and engineers from Charter Brokerage, MIT, Amazon, Flexport, and
  Brex, Pax is backed by Y Combinator, Initialized Capital, General Catalyst, Flexport, Soma Capital, Basis Set Ventures,
  and others. This profile was enriched by the API Evangelist pipeline.
url: https://raw.githubusercontent.com/api-evangelist/pax/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- initialized-capital
x-tier: stub
x-tier-reason: portfolio-lead
x-headquarters: San Francisco, CA, USA
x-industry: Trade finance / Customs / AI automation
x-founders:
- Penny Chen (Founder & CEO)
- Chris Le (Founder)
x-funding:
  total: $5.0M
  last_round: Seed ($4.5M, 2025-04)
  investors:
  - Y Combinator
  - Initialized Capital
  - General Catalyst
  - Flexport
  - Soma Capital
  - Basis Set Ventures
  - Transpose Platform Management
  - Sancus Capital
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: '2026-07-20'
tags:
- Company
- Enterprise Saas
- Artificial Intelligence
- Trade Finance
- Customs
- Duty Drawback
- Tariffs
- Fintech
- Supply Chain
image: https://paxai.com/favicon.ico
apis:
- name: Pax API
  description: Live JSON API host for Pax AI (api.paxai.com). A health endpoint is publicly reachable; no public OpenAPI,
    reference documentation, or developer program was discoverable at enrichment time.
  humanURL: https://paxai.com/
  baseURL: https://api.paxai.com
  properties:
  - type: Health
    url: https://api.paxai.com/health
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/pax-domain-security.yml
- type: LLMsTxt
  url: llms/pax-llms.txt
- type: Website
  url: https://paxai.com/
- type: Blog
  url: https://paxai.com/blog
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 3
  pass: local-v1