Silicon Box

Silicon Box Pte Ltd is an independent advanced semiconductor packaging and chiplet integration company headquartered in Tampines, Singapore, founded in 2021 by Byung Joon Han, Sehat Sutardja and Weili Dai. It operates a $2B panel-level packaging foundry and provides the back-end interconnection infrastructure that makes chiplet adoption practical — from early design collaboration through final manufacture and test — functioning as an OSAT with an added design-consulting practice. It has shipped over 500 million units at high yield, joined the imec Automotive Chiplet Program, and is building a second €3.2B facility in Novara, Piedmont, Italy. Silicon Box is a semiconductor manufacturer, not a software vendor: it publishes no developer program, no API documentation and no machine-readable API contract. See x-coverage below for the measured basis of that statement.

Silicon Box is profiled on the APIs.io network. Tagged areas include Semiconductors, Chiplets, Advanced Packaging, Manufacturing, and Hardware.

Silicon Box’s developer surface includes engineering blog, support, and 8 more developer resources.

9.3/100 minimal ▬ flat Agent 2/100 human only Full breakdown ↓
scored 2026-09-01 · rubric v0.17.2
0 APIs
SemiconductorsChipletsAdvanced PackagingManufacturingHardwareFoundrySingaporeCompany

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-01 · rubric v0.17.2
Composite quality — 9.3/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.4 / 20
Access Clarity 2.1 / 20
Operational Transparency 0.0 / 13
Contract Governance 0.0 / 12
Discoverability 5.7 / 10
Agent readiness — 2/100 · 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 3 / 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 Surface 0 / 5
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/silicon-box: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Silicon Box Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 1

Pricing, plans, and the legal terms of use

Company 4

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: silicon-box
name: Silicon Box
description: 'Silicon Box Pte Ltd is an independent advanced semiconductor packaging and chiplet integration company headquartered
  in Tampines, Singapore, founded in 2021 by Byung Joon Han, Sehat Sutardja and Weili Dai. It operates a $2B panel-level packaging
  foundry and provides the back-end interconnection infrastructure that makes chiplet adoption practical — from early design
  collaboration through final manufacture and test — functioning as an OSAT with an added design-consulting practice. It has
  shipped over 500 million units at high yield, joined the imec Automotive Chiplet Program, and is building a second €3.2B
  facility in Novara, Piedmont, Italy. Silicon Box is a semiconductor manufacturer, not a software vendor: it publishes no
  developer program, no API documentation and no machine-readable API contract. See x-coverage below for the measured basis
  of that statement.'
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
image: https://lirp.cdn-website.com/68ddebd6/dms3rep/multi/opt/ENG20230714_130004-1920w.jpg
url: https://raw.githubusercontent.com/api-evangelist/silicon-box/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-harvest-listing: https://www.hiive.com/securities/silicon-box-stock
specificationVersion: '0.20'
created: '2026-08-27'
modified: '2026-08-27'
tags:
- Semiconductors
- Chiplets
- Advanced Packaging
- Manufacturing
- Hardware
- Foundry
- Singapore
- Company
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/silicon-box-domain-security.yml
- type: Website
  url: https://www.silicon-box.com/
- type: About
  url: https://www.silicon-box.com/about
- type: Services
  url: https://www.silicon-box.com/services
- type: Blog
  url: https://www.silicon-box.com/newsroom
- type: Support
  url: https://www.silicon-box.com/contact
- type: PrivacyPolicy
  url: https://www.silicon-box.com/privacy-policy
- type: Careers
  url: https://www.silicon-box.com/careers
- type: LLMsTxt
  url: llms/silicon-box-llms.txt
- type: ContentSignal
  url: well-known/silicon-box-robots.txt
x-enrichment:
  date: '2026-08-27'
  status: minimal
  artifacts_added: 4
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Silicon Box is a chiplet advanced-packaging foundry whose product is physically manufactured silicon — its entire
    47-URL sitemap is corporate marketing (services, newsroom, careers, virtual factory) with no developer, docs or API section,
    and no api./developer./docs./portal. subdomain resolves at all.
  evidence:
  - url: https://www.silicon-box.com/sitemap.xml
    status: 200
  - url: https://www.silicon-box.com/openapi.json
    status: 404
  - url: https://www.silicon-box.com/api-docs
    status: 404
  - url: https://www.silicon-box.com/docs
    status: 404
  - url: https://www.silicon-box.com/graphql
    status: 404
  - url: https://www.silicon-box.com/.well-known/agent-card.json
    status: 404
  - url: https://www.silicon-box.com/llms.txt
    status: 200
  checked: '2026-08-27'

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