Cymphony

Cymphony delivers workforce security solutions designed for the AI era, helping enterprises protect sensitive data from insider threats and AI‑driven exposure. Their platform combines identity protection, threat detection, and data loss prevention to secure employee interactions with AI tools. Backed by Sequoia Capital, Cymphony offers a suite of services including AI‑risk assessment, real‑time monitoring, and compliance automation, aiming to safeguard corporate knowledge while enabling responsible AI adoption across the organization.

Cymphony is profiled on the APIs.io network. Tagged areas include Security, AI, Workforce, Identity, and Threat-Detection.

🌐 Visit website 📡 Profile data on GitHub

10.0/100 minimal Agent 9/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

0 APIs

SecurityAIWorkforce IdentityThreat-DetectionEnterprise

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 10.0/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 3.3 / 15

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 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

10 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 21.1 — up to +15.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/cymphony/apis.yml: open an issue on github.com/api-evangelist/cymphony to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Pricing Plans 1

Published pricing tiers and plan structures.

Cymphony Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Cymphony Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Cymphony Authentication

0 schemes

SECURITY

Cymphony Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Cymphony Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: cymphony
name: Cymphony
description: Cymphony delivers workforce security solutions designed for the AI era, helping enterprises protect sensitive
  data from insider threats and AI‑driven exposure. Their platform combines identity protection, threat detection, and data
  loss prevention to secure employee interactions with AI tools. Backed by Sequoia Capital, Cymphony offers a suite of services
  including AI‑risk assessment, real‑time monitoring, and compliance automation, aiming to safeguard corporate knowledge while
  enabling responsible AI adoption across the organization.
url: https://artifacts.apis.io/cymphony/apis.yml
image: https://cdn.prod.website-files.com/6a8fe7b0040658a4d0006493/6a9f0104e824c60083182193_cymphony-og-2026-09-07.png
x-type: company
x-source: harvest:vc-portfolio
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-28'
modified: '2026-10-28'
tags:
- Security
- AI
- Workforce
- Identity
- Threat-Detection
- Enterprise
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Hosts
  url: hosts/cymphony-hosts.yml
- type: Vendors
  url: vendors/cymphony-vendors.yml
- type: DomainSecurity
  url: security/cymphony-domain-security.yml
- type: Website
  url: https://cymphony.io/
- type: TermsOfService
  url: https://cymphony.io/terms-conditions
- type: PrivacyPolicy
  url: https://cymphony.io/privacy-policy
apis: []
x-backed-by:
- sequoia-capital
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Spec endpoints on fabric.cymphony.io return HTML pages instead of a machine‑readable OpenAPI document.
  evidence:
  - url: https://fabric.cymphony.io/openapi.json
    status: 200
  checked: '2026-10-29'
x-enrichment:
  date: '2026-10-29'
  status: enriched
  artifacts_added: 20
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Cymphony API — frequently asked questions

How do I authenticate with the Cymphony API?

Cymphony documents its authentication (0 schemes). The details are profiled on APIs.io as Cymphony Authentication.

Is the Cymphony API ready for AI agents?

Cymphony has a Kin Score of 10.0 out of 100 (minimal) and an Agent Readiness score of 8.8 (agent-aware), scored by API Evangelist on 2026-10-31.

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