Coreshell

Coreshell (Coreshell Technologies, Inc.) is a San Leandro, California battery technology company founded in 2017 that develops silicon-anode lithium-ion battery cells built on low-cost, domestically sourced metallurgical-grade silicon instead of graphite or refined polysilicon. A proprietary nanolayer surface coating stabilizes the silicon anode, and the company has unveiled commercial-scale 60 Ah cells aimed at electric vehicles, defense platforms and stationary energy storage. Coreshell is a materials and cell manufacturer, not a software vendor: its public web presence is a Webflow marketing site with no developer portal, API reference, machine-readable specification, SDK, or public code repository.

Coreshell is profiled on the APIs.io network. Tagged areas include Company, Batteries, Energy Storage, Electric Vehicles, and Advanced Materials.

Coreshell’s developer surface includes engineering blog and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

6.5/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0

0 APIs

CompanyBatteriesEnergy StorageElectric VehiclesAdvanced MaterialsManufacturingClean EnergyDefense

Kin Score

Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0

Composite quality — 6.5/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.4 / 17

Commercial Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 1.2 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities 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.

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/.

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

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Company 6

The organization behind the API

Website

About

Blog

Careers

LinkedIn

Twitter

Twitter

Other 1

Properties that don't map to a standard resource type

Profile

Profile

Source (apis.yml)

aid: coreshell
name: Coreshell
description: 'Coreshell (Coreshell Technologies, Inc.) is a San Leandro, California battery technology company founded in
  2017 that develops silicon-anode lithium-ion battery cells built on low-cost, domestically sourced metallurgical-grade silicon
  instead of graphite or refined polysilicon. A proprietary nanolayer surface coating stabilizes the silicon anode, and the
  company has unveiled commercial-scale 60 Ah cells aimed at electric vehicles, defense platforms and stationary energy storage.
  Coreshell is a materials and cell manufacturer, not a software vendor: its public web presence is a Webflow marketing site
  with no developer portal, API reference, machine-readable specification, SDK, or public code repository.'
image: https://cdn.prod.website-files.com/6418c049a689a74a41dc6deb/641bc4b2523aa24c2a4aeb27_webclip.png
url: https://raw.githubusercontent.com/api-evangelist/coreshell/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-08-11'
modified: '2026-08-11'
tags:
- Company
- Batteries
- Energy Storage
- Electric Vehicles
- Advanced Materials
- Manufacturing
- Clean Energy
- Defense
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.coreshell.com
- type: About
  url: https://www.coreshell.com/about
- type: Blog
  url: https://www.coreshell.com/blog
- type: Contact
  url: https://www.coreshell.com/contact
- type: Careers
  url: https://www.coreshell.com/careers
- type: LinkedIn
  url: https://www.linkedin.com/company/coreshell-technologies-inc/
- type: Twitter
  url: https://twitter.com/coreshelltech
- type: Profile
  url: https://forgeglobal.com/coreshell_stock/
- type: DomainSecurity
  url: security/coreshell-domain-security.yml
- type: LLMsTxt
  url: llms/coreshell-llms.txt
x-enrichment:
  date: '2026-08-11'
  status: minimal
  artifacts_added: 3
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Coreshell manufactures silicon-anode lithium-ion battery cells and metallurgical-silicon anode material; its entire
    web presence is a seven-page Webflow marketing site (solutions, defense, about, blog, careers, contact) with no developer,
    docs, or API section, and api./docs./developer.coreshell.com do not resolve in DNS.
  evidence:
  - url: https://www.coreshell.com/openapi.json
    status: 404
  - url: https://www.coreshell.com/.well-known/agent-card.json
    status: 404
  - url: https://www.coreshell.com/developers
    status: 404
  - url: https://www.coreshell.com/sitemap.xml
    status: 200
  checked: '2026-08-11'