Aztec

Aztec is the leading privacy-first Layer 2 zkRollup on Ethereum, enabling developers to build private smart contracts with fully programmable end-to-end privacy. Developers write contracts in Noir using the Aztec.nr framework, interact with the network through the Aztec.js TypeScript SDK and the Private eXecution Environment (PXE), and use the first-party `aztec` CLI to compile, test, prove, and deploy. Aztec ships an official MCP server and recommended CLAUDE.md/AGENTS.md instructions for AI-assisted development. Backed by a16z, Paradigm, and SV Angel.

Aztec is profiled on the APIs.io network. Tagged areas include Company, Blockchain, Privacy, Zero Knowledge, and Ethereum.

Aztec’s developer surface includes documentation, API reference, getting-started guide, engineering blog, CLI, changelog, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

23.6/100 emerging ▬ flat Agent 7/100 agent aware library Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs 1 MCP Servers

Company Blockchain Privacy Zero Knowledge Ethereum Layer 2 Smart Contracts Cryptography Developer Tools Web3

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 23.6/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 12.4 / 20

Access Clarity 2.1 / 20

Operational Transparency 3.4 / 13

Contract Governance 0.0 / 12

Discoverability 5.7 / 10

Agent readiness — 7/100 · 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 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

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.

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/aztec: 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.

Aztec MCP Server

MCP SERVER

Security Posture 1

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

Aztec Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

AgentSkill

AgentSkill

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Deprecation

Deprecation

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: aztec
name: Aztec
description: Aztec is the leading privacy-first Layer 2 zkRollup on Ethereum, enabling developers to build private smart contracts
  with fully programmable end-to-end privacy. Developers write contracts in Noir using the Aztec.nr framework, interact with
  the network through the Aztec.js TypeScript SDK and the Private eXecution Environment (PXE), and use the first-party `aztec`
  CLI to compile, test, prove, and deploy. Aztec ships an official MCP server and recommended CLAUDE.md/AGENTS.md instructions
  for AI-assisted development. Backed by a16z, Paradigm, and SV Angel.
url: https://raw.githubusercontent.com/api-evangelist/aztec/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- paradigm
- sv-angel
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  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: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://cdn.prod.website-files.com/6847005bc403085c1aa846e0/689cacb514469cdab7b6c2cf_Aztec-cover.png
tags:
- Company
- Blockchain
- Privacy
- Zero Knowledge
- Ethereum
- Layer 2
- Smart Contracts
- Cryptography
- Developer Tools
- Web3
tags_raw:
- Company
- Blockchain
- Privacy
- Zero-Knowledge
- Ethereum
- Layer 2
- Smart Contracts
- Cryptography
- Developer Tools
- Web3
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://aztec.network
- type: DeveloperPortal
  url: https://docs.aztec.network
- type: Documentation
  url: https://docs.aztec.network
- type: APIReference
  url: https://docs.aztec.network/developers/docs/aztec-js/typescript_api_reference
- type: GettingStarted
  url: https://docs.aztec.network/developers/getting_started
- type: GitHubOrganization
  url: https://github.com/AztecProtocol
- type: Blog
  url: https://aztec.network/blog
- type: PrivacyPolicy
  url: https://aztec.network/privacy
- type: LLMsTxt
  url: llms/aztec-llms.txt
- type: Packages
  url: packages/aztec-packages.yml
- type: SDKs
  url: packages/aztec-packages.yml
- type: CLI
  url: cli/aztec-cli.yml
- type: MCPServer
  url: mcp/aztec-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: ChangeLog
  url: changelog/aztec-changelog.yml
- type: Lifecycle
  url: lifecycle/aztec-lifecycle.yml
- type: Deprecation
  url: lifecycle/aztec-lifecycle.yml
- type: DomainSecurity
  url: security/aztec-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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