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apis.json,llms.txtand similar), its public repositories, and its public status, pricing and changelog pages. Nothing here is obtained by breaching a system, defeating an access control, or using credentials of any kind.The rating is an independent assessment. The Kin Score and Agent Readiness rating are independently calculated scores of a company's public API artifacts, produced by API Evangelist against a published rubric. They are not certifications, endorsements, security assessments, or audits, and they score published artifacts — not the quality, safety, or security of the software.
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Full detail: Where this data comes from
6K Inc is a North Andover, Massachusetts advanced-materials company that produces engineered powders and battery materials with UniMelt, its patented microwave-based production-scale plasma system. Named for the ~6,000 K plasma temperature it operates at — the temperature of the surface of the sun — UniMelt melts or vaporizes precursor feedstock into particles with precise size distribution and crystalline phase in seconds, cutting energy use and eliminating wastewater versus conventional processing.
- 6K Additive (Burgettstown, PA) — sustainably sourced metal powders for additive manufacturing (Ti-6Al-4V, Ni625, Ni718, SS316L, tungsten, C103, C18150, HEA1000), reclaimed from CNC scrap and revert metal.
- 6K Energy — domestically produced lithium-ion cathode and solid-state battery materials (NMC, LFP, LLZO, LMO, LTO, LNMO).
Applications span additive manufacturing, batteries, federal/defense, semiconductor CMP, specialty ceramics, advanced coatings, lighting and display materials, and nano-engineered powders. 6K has received US Department of Defense and Department of Energy awards for domestic critical-materials capacity. Privately held; shares trade on secondary markets.
- https://www.6kinc.com/
- https://forgeglobal.com/6k_stock/ (secondary-market listing that surfaced this company)
A full enrichment pass on 2026-07-31 ran STEP 0b contract discovery against every candidate host and found no machine-readable API contract and no developer program:
| Surface | Result |
|---|---|
OpenAPI / Swagger (/openapi.json, /swagger.json, /api-docs, /docs) |
404 |
| GraphQL | not found |
| MCP server | not found |
A2A agent card (/.well-known/agent-card.json and /.well-known/agent.json) |
404 — nothing written, agent cards are search-only |
| AsyncAPI / webhooks | not found |
/.well-known/* (security.txt, openid-configuration, oauth-authorization-server, api-catalog, ai-plugin.json) |
all 404 |
llms.txt |
404 (a generated one is saved to llms/) |
api. / docs. / developer. / status. subdomains |
wildcard DNS resolves them, but no HTTPS service answers |
| First-party SDKs / packages | none found on npm, PyPI or any registry |
| GitHub org | github.com/6Kinc exists but has 0 public repos and no linked website, so first-party ownership is unverified — no GitHubOrganization pointer wired |
The site's WordPress core REST API (/wp-json/) does answer 200. It is the CMS platform default,
not a product API 6K designs, documents or supports, so it is logged as an incidental finding in
well-known/6k-well-known.yml and deliberately not registered as an API — doing so would
misrepresent 6K as an API provider.
| Path | Type | Method |
|---|---|---|
apis.yml |
APIs.json 0.20 index | searched |
security/6k-domain-security.yml |
DomainSecurity | probed |
well-known/6k-well-known.yml |
well-known + contract-discovery probe record (no pointer — nothing found) | probed |
llms/6k-llms.txt |
LLMsTxt | generated |
Vulnerability-disclosure and trust-center probes returned no verified hit, so those artifacts are absent rather than empty.