Celestial AI

Celestial AI was a Santa Clara, California silicon-photonics company and the creator of the Photonic Fabric optical interconnect technology platform, which replaces electrical links between compute and memory with light in order to scale AI accelerators within a package, package-to-package, and across racks. The company raised more than $515 million across Series B and Series C rounds and introduced the Photonic Fabric Module, an SoC carrying optical interconnect in the middle of the silicon die. Marvell Technology completed its acquisition of Celestial AI on 2 February 2026 in a cash-and-stock deal reported at approximately $3.25 billion; the technology and team were folded into Marvell's Data Center Group and Celestial AI no longer operates as an independent entity. Its product was semiconductor hardware and IP sold to hyperscalers and accelerator vendors, not software, and it never published a developer program, public API, SDK, or machine-readable API contract.

Celestial AI is profiled on the APIs.io network. Tagged areas include Company, Semiconductors, Silicon Photonics, Optical Interconnect, and AI Infrastructure.

🌐 Visit website 📡 Source on GitHub

4.6/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0

0 APIs

CompanySemiconductorsSilicon PhotonicsOptical InterconnectAI InfrastructureData CenterHardwareChiplets

Kin Score

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

Composite quality — 4.6/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 4.6 / 10

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

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Source (apis.yml)

aid: celestial-ai
name: Celestial AI
description: Celestial AI was a Santa Clara, California silicon-photonics company and the creator of the Photonic Fabric optical
  interconnect technology platform, which replaces electrical links between compute and memory with light in order to scale
  AI accelerators within a package, package-to-package, and across racks. The company raised more than $515 million across
  Series B and Series C rounds and introduced the Photonic Fabric Module, an SoC carrying optical interconnect in the middle
  of the silicon die. Marvell Technology completed its acquisition of Celestial AI on 2 February 2026 in a cash-and-stock
  deal reported at approximately $3.25 billion; the technology and team were folded into Marvell's Data Center Group and Celestial
  AI no longer operates as an independent entity. Its product was semiconductor hardware and IP sold to hyperscalers and accelerator
  vendors, not software, and it never published a developer program, public API, SDK, or machine-readable API contract.
url: https://raw.githubusercontent.com/api-evangelist/celestial-ai/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-harvest-listing: https://forgeglobal.com/celestial-ai_stock/
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-08-09'
modified: '2026-08-09'
tags:
- Company
- Semiconductors
- Silicon Photonics
- Optical Interconnect
- AI Infrastructure
- Data Center
- Hardware
- Chiplets
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.celestial.ai/
  x-note: HTTP 301 to https://www.marvell.com/ai.html as of 2026-08-09 (post-acquisition).
- type: Press
  url: https://www.marvell.com/company/newsroom/marvell-completes-acquisition-of-celestial-ai.html
x-enrichment:
  date: '2026-08-09'
  status: minimal
  artifacts_added: 0
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: Marvell closed its acquisition of Celestial AI on 2 February 2026 and celestial.ai now returns a 301 to marvell.com/ai.html
    for every path, so the photonics company's own site — which in its final November 2025 archived state had only Home, About,
    Solutions, Team, Careers and Contact and no developer, docs, SDK or GitHub link at all — no longer exists to profile.
  evidence:
  - url: https://www.celestial.ai/
    status: 301
  - url: https://www.celestial.ai/.well-known/agent-card.json
    status: 403
  - url: https://www.marvell.com/company/newsroom/marvell-completes-acquisition-of-celestial-ai.html
    status: 200
  checked: '2026-08-09'