CircuitHub

CircuitHub is an on-demand electronics manufacturing platform that provides rapid, low-cost turnkey PCB (printed circuit board) assembly for hardware and robotics teams. Engineers upload their CAD and BOM files (Altium, EAGLE, KiCAD) to an automated web application that reconciles the bill of materials against 35,000+ stocked common parts, generates an instant quote, previews a virtual build, and manufactures small prototype-to-production batches in the USA — with 81% of full turnkey orders shipping within three days and real-time quality metrics for transparency. CircuitHub has delivered over 1.5 million boards and placed 87 million parts for more than 20,000 engineers. The company operates a web application rather than a public developer API; user authentication is handled through an Auth0-hosted OpenID Connect tenant.

CircuitHub is profiled on the APIs.io network. Tagged areas include Company, Electronics Manufacturing, PCB Assembly, Hardware, and Robotics.

CircuitHub’s developer surface includes engineering blog, pricing, signup flow, authentication, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

20.2/100 emerging ▬ flat Agent 15/100 agent aware Front door AI 3/6 light Heartbeat 62/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs

Company Electronics Manufacturing PCB Assembly Hardware Robotics Manufacturing Prototyping Supply Chain

Kin Score

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

Composite quality — 20.2/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 6.5 / 17

Operational Transparency 0.3 / 11

Contract Governance 1.9 / 10

Discoverability 4.1 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 15/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 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
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
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 19.0 — up to +16.2 composite points
Operational Transparency scores 2.6 — up to +12.7 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/circuithub/apis.yml: open an issue on github.com/api-evangelist/circuithub 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 →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Dynamic Client Registration

measured — observed by APIs.io (published)

Security Posture 2

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

Circuithub Authentication

openIdConnect/oauth2 · 1 scheme

SECURITY

Circuithub Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

HelpCenter

HelpCenter

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: circuithub
name: CircuitHub
description: CircuitHub is an on-demand electronics manufacturing platform that provides rapid, low-cost turnkey PCB (printed
  circuit board) assembly for hardware and robotics teams. Engineers upload their CAD and BOM files (Altium, EAGLE, KiCAD)
  to an automated web application that reconciles the bill of materials against 35,000+ stocked common parts, generates an
  instant quote, previews a virtual build, and manufactures small prototype-to-production batches in the USA — with 81% of
  full turnkey orders shipping within three days and real-time quality metrics for transparency. CircuitHub has delivered
  over 1.5 million boards and placed 87 million parts for more than 20,000 engineers. The company operates a web application
  rather than a public developer API; user authentication is handled through an Auth0-hosted OpenID Connect tenant.
url: https://raw.githubusercontent.com/api-evangelist/circuithub/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- gv
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://circuithub.com/favicon.ico
tags:
- Company
- Electronics Manufacturing
- PCB Assembly
- Hardware
- Robotics
- Manufacturing
- Prototyping
- Supply Chain
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://circuithub.com
- type: Blog
  url: https://circuithub.com/blog
- type: Pricing
  url: https://circuithub.com/pricing
- type: HelpCenter
  url: https://docs.circuithub.com/
- type: SignUp
  url: https://app.circuithub.com/signup
- type: Login
  url: https://app.circuithub.com/login
- type: TermsOfService
  url: https://circuithub.com/legal/terms-of-service
- type: PrivacyPolicy
  url: https://circuithub.com/legal/privacy-policy
- type: GitHubOrganization
  url: https://github.com/circuithub
- type: WellKnown
  url: well-known/circuithub-well-known.yml
- type: Authentication
  url: authentication/circuithub-authentication.yml
- type: Conformance
  url: conformance/circuithub-conformance.yml
- type: DomainSecurity
  url: security/circuithub-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

CircuitHub API — frequently asked questions

How do I authenticate with the CircuitHub API?

CircuitHub documents its authentication (openIdConnect/oauth2 · 1 scheme). The details are profiled on APIs.io as Circuithub Authentication.

Is the CircuitHub API ready for AI agents?

CircuitHub has a Kin Score of 20.2 out of 100 (emerging) and an Agent Readiness score of 15.1 (agent-aware), scored by API Evangelist on 2026-11-06.

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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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