Kopperfield
Kopperfield is a software company building design and permitting tools for electrical contractors, electricians, inspectors and instructors. Founded in 2022, the company started as an EV charger installation booking service and has since become a broader contractor platform whose stated mission is to "accelerate home electrification by giving contractors the tools they need to work faster, smarter, and with total confidence." The web and mobile product covers NEC-compliant residential and commercial load calculations, drag-and-drop single line diagrams, panel schedules with circuit directories, AI panel-photo analysis, and a National Electrical Code chatbot trained on the 2017, 2020 and 2023 code editions. Kopperfield publishes a public llms.txt and a public status page but does not currently operate a public developer program: there is no published API reference, OpenAPI definition, SDK, or developer portal, and robots.txt disallows crawling of /api/. The company is backed by General Catalyst, MCJ Collective, Lachy Groom and Designer Fund.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Kopperfield the way a machine reads it — 1 machine-readable artifact, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Kopperfield scores 19.7/100 (emerging), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Kopperfield
Each block below is one kind of artifact we hold for Kopperfield. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Kopperfield — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 1
Pagination, idempotency, versioning, errors, and events
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 9
The organization behind the API
Scroll within the panel for all 9 ·
Other 4
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/kopperfield · machine-readable index on apis.io