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.

📡 Source on GitHub

7.1/100 minimal ▬ flat Agent 9/100 agent aware Full breakdown ↓
scored 2026-09-06 · rubric v0.19.0

0 APIs 1 MCP Servers

Company

Kin Score

Kin Score How this is scored →
scored 2026-09-06 · rubric v0.19.0

Composite quality — 7.1/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.4 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 2.2 / 12

Discoverability 3.5 / 10

Agent readiness — 9/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. 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. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

MCP Servers 1

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

Moss MCP Server

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)

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
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
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).

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