Quadrata

Quadrata is a privacy-preserving on-chain identity network for Web3, issuing a non-transferable (soulbound) NFT "Passport" that binds verified identity, compliance and reputation attributes to a user wallet without storing personal data on-chain. Integrators use the Quadrata SDK and REST API to onboard users (KYC), businesses (KYB), and accredited/sophisticated investors, run AML risk and on-chain wallet screening, request consented privacy (PII) data, and query passport attributes on-chain via smart contracts or off-chain via API. Passport attributes include DID (sybil resistance), AML score, COUNTRY, IS_BUSINESS, INVESTOR_STATUS, and Cred Protocol credit score. Supported networks include Ethereum, Polygon, Arbitrum, Optimism, Avalanche, Evmos, and KAVA.

Quadrata is listed with 1 API on the APIs.io network. Tagged areas include Company, Web3, Identity, Digital Identity, and KYC.

The Quadrata catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Quadrata’s developer surface includes documentation, getting-started guide, API reference, signup flow, engineering blog, support, sandbox, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

39.0/100 thin ▬ flat Agent 23/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Company Web3 Identity Digital Identity KYC KYB AML Compliance Wallet Screening Blockchain Decentralized Identity

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 39.0/100 · thin

Contract Quality 8.3 / 21

Developer Ergonomics 12.1 / 17

Access Clarity 5.8 / 17

Operational Transparency 0.9 / 11

Contract Governance 0.0 / 10

Discoverability 6.2 / 9

Regulatory Posture 2.7 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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

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

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 39.0 — up to +15.3 composite points
Access Clarity scores 34.2 — up to +13.2 composite points
Operational Transparency scores 7.9 — up to +12.0 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/quadrata/apis.yml: open an issue on github.com/api-evangelist/quadrata 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
LF Decentralized Trust (Hyperledger) Members and Projects (enterprise blockchain, digital identity, CBDC)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Quadrata Passport API

Server-side REST API for Quadrata Passport: login/access-token authentication, ECDSA-signed privacy data requests, on-chain AML wallet screening, and passport attribute queries....

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Quadrata Webhooks

ASYNCAPI

Security Posture 2

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

Quadrata Authentication

apiKey/http-basic/ecdsa-request-signature/jwt-access-token · 4 schemes

SECURITY

Quadrata Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Webhooks

DataModel

Components

Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 4

The organization behind the API

Website

Website

Blog

Blog

Twitter

Twitter

LinkedIn

Source (apis.yml)

aid: quadrata
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  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
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/quadrata.png
name: Quadrata
description: Quadrata is a privacy-preserving on-chain identity network for Web3, issuing a non-transferable (soulbound) NFT
  "Passport" that binds verified identity, compliance and reputation attributes to a user wallet without storing personal
  data on-chain. Integrators use the Quadrata SDK and REST API to onboard users (KYC), businesses (KYB), and accredited/sophisticated
  investors, run AML risk and on-chain wallet screening, request consented privacy (PII) data, and query passport attributes
  on-chain via smart contracts or off-chain via API. Passport attributes include DID (sybil resistance), AML score, COUNTRY,
  IS_BUSINESS, INVESTOR_STATUS, and Cred Protocol credit score. Supported networks include Ethereum, Polygon, Arbitrum, Optimism,
  Avalanche, Evmos, and KAVA.
url: https://raw.githubusercontent.com/api-evangelist/quadrata/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- multicoin-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
x-docs-platform: gitbook
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 12
  pass: local-v1
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Web3
- Identity
- Digital Identity
- KYC
- KYB
- AML
- Compliance
- Wallet Screening
- Blockchain
- Decentralized Identity
tags_raw:
- Company
- Crypto Web3
- Identity
- Digital Identity
- KYC
- KYB
- AML
- Compliance
- Wallet Screening
- Blockchain
- Web3
- Decentralized Identity
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Quadrata Passport API
  description: 'Server-side REST API for Quadrata Passport: login/access-token authentication, ECDSA-signed privacy data requests,
    on-chain AML wallet screening, and passport attribute queries. Distributed as the @quadrata/sdk JavaScript/TypeScript
    client alongside on-chain smart-contract reads.'
  humanURL: https://docs.quadrata.com/
  baseURL: https://prod.quadrata.com/api/v1
  tags:
  - Identity
  - KYC
  - AML
  - Web3
  properties:
  - type: Documentation
    url: https://docs.quadrata.com/
  - type: Authentication
    url: authentication/quadrata-authentication.yml
  - type: Conventions
    url: conventions/quadrata-conventions.yml
  - type: ErrorCatalog
    url: errors/quadrata-error-codes.yml
  - type: Webhooks
    url: asyncapi/quadrata-webhooks.yml
  - type: DataModel
    url: data-model/quadrata-data-model.yml
  - type: X-MCPServerCandidate
    url: mcp/quadrata-mcp.yml
    note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list
      derived from the published API contracts, not an existing server. The scorer already read the manifest and reported
      mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
common:
- type: Website
  url: https://quadrata.com
- type: DeveloperPortal
  url: https://docs.quadrata.com/
- type: Documentation
  url: https://docs.quadrata.com/integration/introduction/introduction-to-quadrata
- type: GettingStarted
  url: https://docs.quadrata.com/integration/how-to-integrate/quadrata-sdk/get-started-quickly
- type: APIReference
  url: https://docs.quadrata.com/integration/how-to-integrate/quadrata-sdk/advanced/api-libraries/api-service-libraries
- type: SignUp
  url: https://quadrata.com/onboard
- type: TermsOfService
  url: https://quadrata.com/terms
- type: PrivacyPolicy
  url: https://quadrata.com/privacy
- type: Blog
  url: https://medium.com/quadrata-network
- type: Support
  url: https://discord.com/invite/67QgzrymHW
- type: Twitter
  url: https://twitter.com/QuadrataNetwork
- type: LinkedIn
  url: https://www.linkedin.com/company/quadrata-inc/
- type: Sandbox
  url: https://sandbox.quadrata.com
- type: Authentication
  url: authentication/quadrata-authentication.yml
- type: Conventions
  url: conventions/quadrata-conventions.yml
- type: ErrorCatalog
  url: errors/quadrata-error-codes.yml
- type: Webhooks
  url: asyncapi/quadrata-webhooks.yml
- type: DataModel
  url: data-model/quadrata-data-model.yml
- type: Packages
  url: packages/quadrata-packages.yml
- type: SDKs
  url: packages/quadrata-packages.yml
- type: Components
  url: components/quadrata-components.yml
- type: X-MCPServerCandidate
  url: mcp/quadrata-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Lifecycle
  url: lifecycle/quadrata-lifecycle.yml
- type: DomainSecurity
  url: security/quadrata-domain-security.yml
- type: LLMsTxt
  url: llms/quadrata-llms.txt
- type: Sandbox
  url: sandbox/quadrata-sandbox.yml

Quadrata API — frequently asked questions

Does Quadrata have an API?

Yes. APIs.io lists 1 API from Quadrata, including Quadrata Passport API.

How do I authenticate with the Quadrata API?

Quadrata uses bearer-token authentication (apiKey/http-basic/ecdsa-request-signature/jwt-access-token · 4 schemes). The details are profiled on APIs.io as Quadrata Authentication.

Is the Quadrata API ready for AI agents?

Quadrata has a Kin Score of 39.0 out of 100 (thin) and an Agent Readiness score of 22.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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