Zircuit

Zircuit is a zero-knowledge (zk) rollup Layer 2 blockchain and secure onchain finance platform. The network is fully EVM-compatible and OP-Stack based, letting developers deploy standard Solidity smart contracts (via Foundry and the usual Ethereum tooling) while settling to Ethereum with zk validity proofs. Zircuit exposes standard Ethereum JSON-RPC endpoints for mainnet (chain ID 48900) and the Garfield testnet (chain ID 48898), a canonical L1<>L2 bridge, a relayer service (EIP-7702 gasless relaying), a transaction simulation surface, and the GUD Trading Engine — a REST API that aggregates cross-chain liquidity to return best-execution quotes and signable transaction data. On top of the chain, Zircuit Finance and the Liquidity Hub offer institutional-grade yield and LST/LRT staking. Backed by Pantera Capital; the network and contracts have been audited by six independent security firms and run a bug-bounty program.

Zircuit publishes 2 API contracts indexed on the APIs.io network, including Orders API, and 1 more. Tagged areas include Company, Cryptocurrency, Blockchain, Layer 2, and Rollup.

Zircuit’s developer surface includes documentation, API reference, getting-started guide, engineering blog, signup flow, support, authentication, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

45.4/100 developing ▬ flat Agent 16/100 agent aware Front door AI 2/6 trace saas Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract

Company Cryptocurrency Blockchain Layer 2 Rollup Zero Knowledge EVM DeFi JSON-RPC Web3

Kin Score

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

Composite quality — 45.4/100 · developing

Contract Quality 10.0 / 21

Developer Ergonomics 10.9 / 17

Access Clarity 5.8 / 17

Operational Transparency 3.2 / 11

Contract Governance 1.9 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 16/100 · 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 0 / 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

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):

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

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 47.1 — up to +13.2 composite points
Access Clarity scores 34.2 — up to +13.2 composite points
Contract Governance scores 18.2 — up to +9.8 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/zircuit/apis.yml: open an issue on github.com/api-evangelist/zircuit 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.

The Ethereum JSON-RPC Interface reaches extended

tested — the operations were called against a live endpoint

22 core of 78 operations graded · api-commons/blockchain

JSON RPC

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 2

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

Zircuit JSON-RPC API

Standard Ethereum JSON-RPC 2.0 interface to the Zircuit L2 network (HTTP and WebSocket) for reading chain state and submitting transactions. Mainnet is chain ID 48900; the Garfi...

Zircuit Orders API

Trade estimates and cross-chain order execution data.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Zircuit GUD Trading Engine API (Beta) Orders API

OPEN COLLECTION

Security Posture 3

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

Zircuit Authentication

http/none · 2 schemes

SECURITY

Zircuit Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Zircuit Vulnerability Disclosure

contact published

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

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

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

ErrorCatalog

Lifecycle

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Deprecation

Deprecation

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

x-explorer

x-explorer

Source (apis.yml)

aid: zircuit
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - 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: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/zircuit.png
name: Zircuit
description: Zircuit is a zero-knowledge (zk) rollup Layer 2 blockchain and secure onchain finance platform. The network is
  fully EVM-compatible and OP-Stack based, letting developers deploy standard Solidity smart contracts (via Foundry and the
  usual Ethereum tooling) while settling to Ethereum with zk validity proofs. Zircuit exposes standard Ethereum JSON-RPC endpoints
  for mainnet (chain ID 48900) and the Garfield testnet (chain ID 48898), a canonical L1<>L2 bridge, a relayer service (EIP-7702
  gasless relaying), a transaction simulation surface, and the GUD Trading Engine — a REST API that aggregates cross-chain
  liquidity to return best-execution quotes and signable transaction data. On top of the chain, Zircuit Finance and the Liquidity
  Hub offer institutional-grade yield and LST/LRT staking. Backed by Pantera Capital; the network and contracts have been
  audited by six independent security firms and run a bug-bounty program.
url: https://raw.githubusercontent.com/api-evangelist/zircuit/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- pantera-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
x-docs-platform: gitbook
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-17
tags:
- Company
- Cryptocurrency
- Blockchain
- Layer 2
- Rollup
- Zero Knowledge
- EVM
- DeFi
- JSON-RPC
- Web3
tags_raw:
- Company
- Crypto
- Blockchain
- Layer 2
- Rollup
- Zero Knowledge
- EVM
- DeFi
- JSON-RPC
- Web3
apis:
- name: Zircuit JSON-RPC API
  description: Standard Ethereum JSON-RPC 2.0 interface to the Zircuit L2 network (HTTP and WebSocket) for reading chain state
    and submitting transactions. Mainnet is chain ID 48900; the Garfield testnet is chain ID 48898. EVM-compatible, so the
    full eth_* / net_* / web3_* method set applies. DRPC additionally offers paid high-performance node access with debug
    traces.
  humanURL: https://docs.zircuit.com/infra/rpcs
  baseURL: https://mainnet.zircuit.com
  tags:
  - JSON-RPC
  - Ethereum
  - Blockchain
  - Layer 2
  properties:
  - type: Documentation
    url: https://docs.zircuit.com/infra/rpcs
  - type: Sandbox
    url: https://garfield-testnet.zircuit.com
- aid: zircuit:zircuit-orders-api
  name: Zircuit Orders API
  description: Trade estimates and cross-chain order execution data.
  humanURL: https://docs.zircuit.com/infra/rpcs
  baseURL: https://mainnet.zircuit.com
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/zircuit-orders-api-openapi.yml
  - type: Documentation
    url: https://docs.zircuit.com/infra/gud-trading-engine-beta/api-endpoint
  - type: Authentication
    url: authentication/zircuit-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/zircuit-domain-security.yml
- type: Website
  url: https://www.zircuit.com/
- type: DeveloperPortal
  url: https://docs.zircuit.com/build/start
- type: Documentation
  url: https://docs.zircuit.com/
- type: APIReference
  url: https://docs.zircuit.com/infra/rpcs
- type: GettingStarted
  url: https://docs.zircuit.com/build/start
- type: Blog
  url: https://www.zircuit.com/blog
- type: GitHubOrganization
  url: https://github.com/zircuit-labs
- type: SignUp
  url: https://finance.zircuit.com/
- type: TermsOfService
  url: https://static.zircuit.com/docs/tos.pdf
- type: PrivacyPolicy
  url: https://static.zircuit.com/docs/pp.pdf
- type: Support
  url: https://jobs.ashbyhq.com/Zircuit
- type: StatusPage
  url: https://status.zircuit.com/
- type: x-explorer
  url: https://explorer.zircuit.com/
- type: LLMsTxt
  url: llms/zircuit-llms.txt
- type: Authentication
  url: authentication/zircuit-authentication.yml
- type: Conventions
  url: conventions/zircuit-conventions.yml
- type: Conformance
  url: conformance/zircuit-conformance.yml
- type: ErrorCatalog
  url: errors/zircuit-error-codes.yml
- type: Lifecycle
  url: lifecycle/zircuit-lifecycle.yml
- type: Deprecation
  url: lifecycle/zircuit-lifecycle.yml
- type: Sandbox
  url: sandbox/zircuit-sandbox.yml
- type: WellKnown
  url: well-known/zircuit-well-known.yml
- type: X-MCPServerCandidate
  url: mcp/zircuit-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.'

Zircuit API — frequently asked questions

Does Zircuit have an API?

Yes. APIs.io lists 2 APIs from Zircuit, including Zircuit JSON-RPC API and Zircuit Orders API.

Is there an OpenAPI specification for the Zircuit API?

Yes. APIs.io indexes 1 OpenAPI specification for Zircuit, each linked for download from this page.

How do I authenticate with the Zircuit API?

Zircuit uses bearer-token authentication (http/none · 2 schemes). The details are profiled on APIs.io as Zircuit Authentication.

Is the Zircuit API ready for AI agents?

Zircuit has a Kin Score of 45.4 out of 100 (developing) and an Agent Readiness score of 16.2 (agent-aware), scored by API Evangelist on 2026-10-31.

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