Sygaldry
Sygaldry Technologies builds quantum-accelerated AI servers — augmenting classical data-center infrastructure with quantum processors purpose-built for AI to deliver exponential speedups on specific training and inference tasks. Founded in 2024 in Ann Arbor, Michigan by Chad Rigetti (founder of Rigetti Computing), Idalia Friedson, and Michael Keiser, the company combines multiple qubit types within a single fault-tolerant architecture to accelerate model training, fine-tuning, and token generation while cutting compute cost and energy use. A Y Combinator Spring 2025 company, Sygaldry has raised $139M ($34M seed led by Initialized Capital and a $105M Series A led by Breakthrough Energy Ventures, with Bloomberg Beta among its investors). Sygaldry currently publishes no public developer API; this profile is maintained for API Evangelist network discovery.
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 Sygaldry 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 — Sygaldry scores 7.4/100 (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 Sygaldry
Each block below is one kind of artifact we hold for Sygaldry. 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 Sygaldry — 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.
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Company 4
The organization behind the API
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