Xairos

Xairos Systems is a Techstars-backed company building quantum time transfer (QTT) technology - a space-based, quantum-resilient global timing and synchronization system positioned as a secure alternative to GPS for positioning, navigation, and timing (PNT). The company targets sub-nanosecond accuracy while mitigating GPS jamming and spoofing, serving critical infrastructure sectors such as transportation, finance, data centers, and power grids. Xairos publishes no first-party developer API, but its site ships an llms.txt and a live Wix Site MCP endpoint for agentic access to public site content.

Xairos is profiled on the APIs.io network. Tagged areas include Company, Quantum, Timing, Synchronization, and PNT.

🌐 Visit website 📡 Source on GitHub
8.5/100 minimal ▬ flat Agent 12/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs 1 MCP Servers
CompanyQuantumTimingSynchronizationPNTGPS AlternativeCritical Infrastructure

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 8.5/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.7 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 12/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 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/xairos: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

xairos-mcp.yml

MCP SERVER

Security Posture 1

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

Xairos Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 MCPServer
MCPServer

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 3

The organization behind the API

Website
Website
 LinkedIn
LinkedIn
 Twitter
Twitter

Source (apis.yml)

apis.yml Raw ↑ 
aid: xairos
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/xairos.png
name: Xairos
description: Xairos Systems is a Techstars-backed company building quantum time transfer (QTT) technology - a space-based,
  quantum-resilient global timing and synchronization system positioned as a secure alternative to GPS for positioning, navigation,
  and timing (PNT). The company targets sub-nanosecond accuracy while mitigating GPS jamming and spoofing, serving critical
  infrastructure sectors such as transportation, finance, data centers, and power grids. Xairos publishes no first-party developer
  API, but its site ships an llms.txt and a live Wix Site MCP endpoint for agentic access to public site content.
url: https://raw.githubusercontent.com/api-evangelist/xairos/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- techstars
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Quantum
- Timing
- Synchronization
- PNT
- GPS Alternative
- Critical Infrastructure
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/xairos-domain-security.yml
- type: Website
  url: https://www.xairos.com/
- type: LLMsTxt
  url: llms/xairos-llms.txt
- type: MCPServer
  url: mcp/xairos-mcp.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/xairos/
- type: Twitter
  url: https://x.com/xairos2
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 4
  pass: local-v1