Rivos website screenshot

Rivos

Rivos is a Santa Clara-based silicon startup founded in 2021 that designs data-center class GPUs and AI accelerators around the open RISC-V instruction set architecture, fabricated on TSMC's 3nm process. The company is also developing a CUDA-to-RISC-V translation layer to ease migration of Nvidia-based AI workloads onto its silicon. Rivos raised a 250 million dollar Series A in 2024 led by Matrix Capital Management with Walden Catalyst and Dell Capital Partners, followed by additional rounds bringing total funding above 370 million dollars at a valuation north of 2 billion dollars. In October 2025 Meta announced an agreement to acquire Rivos to bolster its in-house custom silicon program. The company has operated in near-stealth mode and currently exposes no public website content, SDKs, or APIs, so this profile is intentionally an empty apis list with external press and acquisition references.

Rivos is profiled on the APIs.io network. Tagged areas include AI Hardware, RISC-V, GPU, Accelerator, and Silicon.

🌐 Visit website 📡 Source on GitHub
6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
AI HardwareRISC-VGPUAcceleratorSiliconStealthDatacenterAcquired

Kin Score

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scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · 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 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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/rivos: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Rivos Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LlmsText
LlmsText

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 10

The organization behind the API

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Website
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 AcquisitionNews
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LinkedIn
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Crunchbase

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Other 1

Properties that don't map to a standard resource type

Analysis
Analysis

Source (apis.yml)

apis.yml Raw ↑ 
aid: rivos
name: Rivos
description: Rivos is a Santa Clara-based silicon startup founded in 2021 that designs data-center class GPUs and AI accelerators
  around the open RISC-V instruction set architecture, fabricated on TSMC's 3nm process. The company is also developing a
  CUDA-to-RISC-V translation layer to ease migration of Nvidia-based AI workloads onto its silicon. Rivos raised a 250 million
  dollar Series A in 2024 led by Matrix Capital Management with Walden Catalyst and Dell Capital Partners, followed by additional
  rounds bringing total funding above 370 million dollars at a valuation north of 2 billion dollars. In October 2025 Meta
  announced an agreement to acquire Rivos to bolster its in-house custom silicon program. The company has operated in near-stealth
  mode and currently exposes no public website content, SDKs, or APIs, so this profile is intentionally an empty apis list
  with external press and acquisition references.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/rivos.png
tags:
- AI Hardware
- RISC-V
- GPU
- Accelerator
- Silicon
- Stealth
- Datacenter
- Acquired
url: https://raw.githubusercontent.com/api-evangelist/rivos/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/rivos-domain-security.yml
- type: Website
  url: https://rivosinc.com
- type: Press
  url: https://www.theregister.com/2024/04/17/riscv_ai_startup_rivos_funded/
- type: Press
  url: https://waldencatalyst.com/blog/rivos-raises-more-than-usd250-million-to-tap-ai-boom
- type: Press
  url: https://www.startuphub.ai/ai-news/funding-round/2025/rivos-secures-up-to-500m-for-advanced-ai-chip-development
- type: Press
  url: https://techstartups.com/2025/08/13/ai-chip-startup-rivos-seeks-up-to-500-million-in-funding-to-take-on-nvidia/
- type: AcquisitionNews
  url: https://www.nextplatform.com/compute/2025/10/02/meta-buys-rivos-to-accelerate-compute-engine-engineering/1642477
- type: AcquisitionNews
  url: https://www.tomshardware.com/tech-industry/artificial-intelligence/meta-reportedly-buying-risc-v-ai-gpu-firm-rivos-acquisition-to-bolster-dev-team-and-possibly-replace-nvidia-internally
- type: AcquisitionNews
  url: https://www.datacenterdynamics.com/en/news/meta-acquires-risc-v-chip-startup-rivos-report/
- type: Analysis
  url: https://www.hpcwire.com/2025/10/08/what-metas-purchase-of-rivos-says-about-risc-v/
- type: LinkedIn
  url: https://www.linkedin.com/company/rivos-inc
- type: Crunchbase
  url: https://www.crunchbase.com/organization/rivos
- type: LlmsText
  url: https://rivosinc.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com