Astera Labs website screenshot

Astera Labs

Astera Labs, Inc. (NASDAQ: ALAB) is a semiconductor company building purpose-built connectivity solutions for rack-scale AI and cloud infrastructure. Its Intelligent Connectivity Platform spans the Aries PCIe/CXL Smart DSP Retimers, Smart Cable Modules and Smart Gearboxes, the Taurus Ethernet Smart Retimers and Smart Redrivers, the Leo CXL Smart Memory Controllers, and the Scorpio Smart Fabric Switches, all managed by COSMOS (COnnectivity System Management and Optimization Software). COSMOS is the software layer of the platform: firmware modules on the devices plus platform-level libraries that run on hosts and baseboard management controllers, exposing what Astera Labs describes as a single standardized API for device discovery, configuration, security attestation, firmware update, telemetry, link diagnostics, RAS testing, scripting and fleet management. That API surface is an on-premises host/BMC SDK rather than a public web API: the COSMOS Developer Kit is offered through a "Contact Us" motion and the supporting application notes are released through a document-request form, so no public API reference or machine-readable specification is published.

Astera Labs is profiled on the APIs.io network. Tagged areas include Company, Semiconductors, Hardware, AI Infrastructure, and Data Center.

Astera Labs’ developer surface includes engineering blog and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
12.5/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
0 APIs
CompanySemiconductorsHardwareAI InfrastructureData CenterConnectivityPCIeCXLEthernetFleet ManagementTelemetryDevice Management

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 12.5/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 5.7 / 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
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/astera-labs: 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 2

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

Astera Labs Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Astera Labs Vulnerability Disclosure

security.txt

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Security
Security
 VulnerabilityDisclosure
VulnerabilityDisclosure

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: astera-labs
name: Astera Labs
description: 'Astera Labs, Inc. (NASDAQ: ALAB) is a semiconductor company building purpose-built connectivity solutions for
  rack-scale AI and cloud infrastructure. Its Intelligent Connectivity Platform spans the Aries PCIe/CXL Smart DSP Retimers,
  Smart Cable Modules and Smart Gearboxes, the Taurus Ethernet Smart Retimers and Smart Redrivers, the Leo CXL Smart Memory
  Controllers, and the Scorpio Smart Fabric Switches, all managed by COSMOS (COnnectivity System Management and Optimization
  Software). COSMOS is the software layer of the platform: firmware modules on the devices plus platform-level libraries that
  run on hosts and baseboard management controllers, exposing what Astera Labs describes as a single standardized API for
  device discovery, configuration, security attestation, firmware update, telemetry, link diagnostics, RAS testing, scripting
  and fleet management. That API surface is an on-premises host/BMC SDK rather than a public web API: the COSMOS Developer
  Kit is offered through a "Contact Us" motion and the supporting application notes are released through a document-request
  form, so no public API reference or machine-readable specification is published.'
image: https://www.asteralabs.com/wp-content/uploads/2025/09/ALAB_OGImage.jpg
url: https://raw.githubusercontent.com/api-evangelist/astera-labs/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-06'
modified: '2026-08-06'
tags:
- Company
- Semiconductors
- Hardware
- AI Infrastructure
- Data Center
- Connectivity
- PCIe
- CXL
- Ethernet
- Fleet Management
- Telemetry
- Device Management
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/astera-labs-domain-security.yml
- type: Website
  url: https://www.asteralabs.com/
- type: Blog
  url: https://www.asteralabs.com/resources/blog/
- type: GitHubOrganization
  url: https://github.com/AsteraLabs
- type: TermsOfService
  url: https://www.asteralabs.com/terms-of-use/
- type: PrivacyPolicy
  url: https://www.asteralabs.com/privacy-policy/
- type: Security
  url: https://www.asteralabs.com/resources/security/
- type: VulnerabilityDisclosure
  url: security/astera-labs-vulnerability-disclosure.yml
- type: LLMsTxt
  url: llms/astera-labs-llms.txt
x-enrichment:
  date: '2026-08-06'
  status: minimal
  artifacts_added: 4
  pass: local-v1
x-coverage:
  state: gated
  reason: sales-gate
  detail: The COSMOS Developer Kit page markets "a single, standardized API" for device control, telemetry and fleet management
    but ships a "Contact Us" button instead of a reference, and every supporting application note (Aries CScripts, IOMT, security,
    self-test) is released only through a document-request form that requires a company email address.
  evidence:
  - url: https://www.asteralabs.com/products/cosmos-dev-kit/
    status: 200
  - url: https://www.asteralabs.com/document-requests/
    status: 200
  - url: https://www.asteralabs.com/openapi.json
    status: 404
  checked: '2026-08-06'