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 📡 Profile data on GitHub

22.6/100 emerging ▬ flat Agent 7/100 agent aware Front door AI 3/6 light library Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs 1 MCP Servers 1 Agent Skills

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

Kin Score

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

Composite quality — 22.6/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 10.5 / 17

Access Clarity 1.8 / 17

Operational Transparency 2.9 / 11

Contract Governance 0.0 / 10

Discoverability 4.7 / 9

Regulatory Posture 1.5 / 15

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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 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
Access Clarity scores 10.5 — up to +17.9 composite points
Contract Governance scores 0.0 — 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/aztec/apis.yml: open an issue on github.com/api-evangelist/aztec 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 →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Agent Skills

measured — observed by APIs.io (published)

MCP Servers 1

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

Aztec MCP Server

Local (stdio) MCP server.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

Aztec project instructions (CLAUDE.md / AGENTS.md)

AGENT SKILL

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:
  - security
  generated: '2026-11-06'
  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
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-19
x-docs-hosting: netlify
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

Aztec API — frequently asked questions

Does Aztec have an MCP server?

Yes. APIs.io lists 1 MCP server for Aztec: Local (stdio) MCP server.

Is the Aztec API ready for AI agents?

Aztec has a Kin Score of 22.6 out of 100 (emerging) and an Agent Readiness score of 7.1 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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Every operation they expose

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How their score was established

curl "https://apis.io/api/v1/providers/aztec/evidence"

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