Zefchain

Zefchain Labs is the company behind Linera, a decentralized Web3 protocol designed for highly scalable, low-latency applications using a "microchain" architecture in which each user or application runs its own lightweight chain. Developers build applications in Rust with the open-source Linera SDK, deploy them to a public Testnet, and expose chain state to web frontends through a GraphQL node service. Zefchain also operates Linera Markets, a 24/7 on-chain trading platform. The project (formerly branded Zefchain) is developed in the open at github.com/linera-io under Apache-2.0 and is backed by a16z. This profile was enriched by the API Evangelist pipeline from public sources.

Zefchain publishes 1 API on the APIs.io network. Tagged areas include Company, Blockchain, Web3, Developer Tools, and GraphQL.

Zefchain’s developer surface includes documentation, getting-started guide, API reference, CLI, changelog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
21.6/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
1 APIs
CompanyBlockchainWeb3Developer ToolsGraphQLRustSDKDecentralized Infrastructure

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 21.6/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 9.6 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 2.7 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 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 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/zefchain: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Linera Node Service (GraphQL)

GraphQL API exposed by the Linera node service (run via the linera CLI) that lets web frontends read and mutate the state of the microchains held by a wallet, including GraphQL ...

Security Posture 1

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

Zefchain Domain Security

TLSv1.3 · 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 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 Lifecycle
Lifecycle

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 SourceCode
SourceCode
 SDKs
SDKs
 Packages
Packages
 CLI
CLI

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog
ChangeLog

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: zefchain
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/zefchain.png
name: Zefchain
description: Zefchain Labs is the company behind Linera, a decentralized Web3 protocol designed for highly scalable, low-latency
  applications using a "microchain" architecture in which each user or application runs its own lightweight chain. Developers
  build applications in Rust with the open-source Linera SDK, deploy them to a public Testnet, and expose chain state to web
  frontends through a GraphQL node service. Zefchain also operates Linera Markets, a 24/7 on-chain trading platform. The project
  (formerly branded Zefchain) is developed in the open at github.com/linera-io under Apache-2.0 and is backed by a16z. This
  profile was enriched by the API Evangelist pipeline from public sources.
url: https://raw.githubusercontent.com/api-evangelist/zefchain/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Blockchain
- Web3
- Developer Tools
- GraphQL
- Rust
- SDK
- Decentralized Infrastructure
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 7
  pass: local-v1
common:
- type: DomainSecurity
  url: security/zefchain-domain-security.yml
- type: Website
  url: https://linera.io
- type: DeveloperPortal
  url: https://linera.dev
- type: Documentation
  url: https://linera.dev
- type: GettingStarted
  url: https://linera.dev/developers/getting_started.html
- type: APIReference
  url: https://linera.dev/developers/core_concepts/node_service.html
- type: GitHubOrganization
  url: https://github.com/linera-io
- type: SourceCode
  url: https://github.com/linera-io/linera-protocol
- type: SDKs
  url: packages/zefchain-packages.yml
- type: Packages
  url: packages/zefchain-packages.yml
- type: CLI
  url: cli/zefchain-cli.yml
- type: ChangeLog
  url: changelog/zefchain-changelog.yml
- type: Conformance
  url: conformance/zefchain-conformance.yml
- type: Lifecycle
  url: lifecycle/zefchain-lifecycle.yml
- type: LLMsTxt
  url: llms/zefchain-llms.txt
apis:
- name: Linera Node Service (GraphQL)
  description: GraphQL API exposed by the Linera node service (run via the linera CLI) that lets web frontends read and mutate
    the state of the microchains held by a wallet, including GraphQL subscriptions for chain events. Self-hosted; authorized
    by cryptographic wallet signatures rather than OAuth.
  humanURL: https://linera.dev/developers/core_concepts/node_service.html
  baseURL: https://linera.dev
  properties:
  - type: GraphQL
    url: https://linera.dev/developers/core_concepts/node_service.html
  - type: Documentation
    url: https://linera.dev