Moss

Moss is a company surfaced as a portfolio company of y-combinator and added to the API Evangelist network as a stub for enrichment. This profile is a lead awaiting the enrichment pipeline.

Moss is profiled on the APIs.io network. Tagged areas include Company.

🌐 Visit website 📡 Source on GitHub
8.1/100 minimal ▬ flat Agent 17/100 agent aware Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
0 APIs 1 MCP Servers
Company

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 8.1/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 3.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 1.5 / 12
Discoverability 3.5 / 10
Agent readiness — 17/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 8 / 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/moss: 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.

moss-mcp.yml

MCP SERVER

Security Posture 3

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

Moss Authentication

apiKey · 2 schemes

SECURITY

Moss Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Moss Trust Center

SOC 2, HIPAA

SECURITY

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgentSkill
AgentSkill
 MCPServer
MCPServer

Other 1

Properties that don't map to a standard resource type

AgentCard
AgentCard

Source (apis.yml)

apis.yml Raw ↑ 
aid: moss
name: Moss
description: Moss is a company surfaced as a portfolio company of y-combinator and added to the API Evangelist network as
  a stub for enrichment. This profile is a lead awaiting the enrichment pipeline.
url: https://raw.githubusercontent.com/api-evangelist/moss/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgentSkill
  url: skills/moss-mcp-integration.md
- type: MCPServer
  url: mcp/moss-mcp.yml
- type: AgentCard
  url: a2a/moss-a2a.yml
  name: A2A Agent Card
  description: Agent Card served at /.well-known/agent-card.json (flavored against A2A 1.0.0).