Amprius Technologies
Amprius Technologies is a Fremont, California-based developer and manufacturer of high-energy density lithium-ion batteries built on a proprietary 100% silicon anode platform. Its flagship SiCore and SiMaxx cell families are marketed as among the industry's highest gravimetric and volumetric energy density rechargeable cells, enabling longer endurance, faster charging, and higher payload capacity than conventional graphite-anode chemistries. Amprius targets aviation and aerospace (high-altitude pseudo-satellites, unmanned aerial systems, electric vertical takeoff and landing aircraft), defense (US Army soldier-worn power, BAE Systems), light electric vehicles, robotics, and AI hardware. Public references include AALTO's Airbus-derived Zephyr HAPS programs, Prismatic's PHASA-35 stratospheric aircraft, Nokia Drone Networks, and Matternet drone delivery. The company runs pilot manufacturing and R&D in Fremont and is scaling a GWh-scale Brighton, Colorado plant alongside contract manufacturing partnerships in Asia. Amprius is publicly traded on the New York Stock Exchange under the ticker AMPX. It is certified to ISO 9001:2015 and AS9100:2016. Amprius sells cells, modules, and engineering services to OEMs and defense primes; it does not publish a developer API, SDK, or open-source battery telemetry interface, and has no public GitHub organization.
Index entry only — little beyond a description and a link, and nothing machine-readable enough for an agent to act on without a human reading the site first.
API Evangelist profiles Amprius Technologies 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 — Amprius Technologies scores 7.2/100 (minimal), 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 Amprius Technologies
Each block below is one kind of artifact we hold for Amprius Technologies. 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 Amprius Technologies — 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.
Access & Security 1
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 2
Status, limits, changes, and where to get help
Company 8
The organization behind the API
Scroll within the panel for all 8 ·
Other 5
Properties that don't map to a standard resource type
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