Iron Fish

Iron Fish is a zero-knowledge Layer 1 blockchain that brings optional, best-in-class privacy to cryptocurrency. Built on zk-SNARK cryptography, it lets anyone send, receive, and bridge assets privately across 20+ EVM-compatible chains while running their own node. For developers, Iron Fish exposes a self-hosted node RPC server (over TCP, IPC, and HTTP with JSON and streaming responses) organized into chain, wallet, node, peer, miner, config, event, mempool, and worker namespaces, plus a hosted public REST API at api.ironfish.network powering the block explorer and faucet. Integration is supported by a first-party JavaScript SDK (@ironfish/sdk), Rust/Node bindings, and the ironfish CLI for node operation, wallet management, mining, and multisig. Backed by a16z and Electric Capital.

Iron Fish publishes 1 API on the APIs.io network. Tagged areas include Blockchain, Cryptocurrency, Privacy, Zero Knowledge, and Layer 1.

Iron Fish’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, CLI, authentication, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

27.4/100 thin ▬ flat Agent 9/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

1 APIs

BlockchainCryptocurrencyPrivacyZero KnowledgeLayer 1Web3RPCWallets

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 27.4/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 11.3 / 17

Access Clarity 3.6 / 17

Operational Transparency 2.0 / 11

Contract Governance 0.0 / 10

Discoverability 6.5 / 9

Regulatory Posture 4.7 / 15

Agent readiness — 9/100 · agent aware

Machine-Readable Contract 0 / 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 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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

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.

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/.

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/iron-fish: 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.

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 1

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

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

Whitepaper

Whitepaper

Source (apis.yml)

aid: iron-fish
name: Iron Fish
description: Iron Fish is a zero-knowledge Layer 1 blockchain that brings optional, best-in-class privacy to cryptocurrency.
  Built on zk-SNARK cryptography, it lets anyone send, receive, and bridge assets privately across 20+ EVM-compatible chains
  while running their own node. For developers, Iron Fish exposes a self-hosted node RPC server (over TCP, IPC, and HTTP with
  JSON and streaming responses) organized into chain, wallet, node, peer, miner, config, event, mempool, and worker namespaces,
  plus a hosted public REST API at api.ironfish.network powering the block explorer and faucet. Integration is supported by
  a first-party JavaScript SDK (@ironfish/sdk), Rust/Node bindings, and the ironfish CLI for node operation, wallet management,
  mining, and multisig. Backed by a16z and Electric Capital.
url: https://raw.githubusercontent.com/api-evangelist/iron-fish/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- electric-capital
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
image: https://avatars.githubusercontent.com/u/43299557?v=4
tags:
- Blockchain
- Cryptocurrency
- Privacy
- Zero Knowledge
- Layer 1
- Web3
- RPC
- Wallets
tags_raw:
- Blockchain
- Cryptocurrency
- Privacy
- Zero Knowledge
- Layer 1
- Web3
- RPC
- Wallet
apis:
- name: Iron Fish Public REST API
  description: Hosted public REST API (the block-explorer and faucet backend) exposing blocks, transactions, and network data
    with a list/object JSON envelope and cursor-style pagination. No authentication required for read endpoints.
  humanURL: https://github.com/iron-fish/ironfish-api
  baseURL: https://api.ironfish.network
  tags:
  - Blockchain
  - Block Explorer
  - REST
  properties:
  - type: APIReference
    url: https://ironfish.network/developers/documentation/integration_rpc
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://ironfish.network/
- type: DeveloperPortal
  url: https://ironfish.network/developers/documentation
- type: Documentation
  url: https://ironfish.network/developers/documentation
- type: APIReference
  url: https://ironfish.network/developers/documentation/integration_rpc
- type: GettingStarted
  url: https://ironfish.network/developers/documentation/install-npm
- type: GitHubOrganization
  url: https://github.com/iron-fish
- type: Blog
  url: https://ironfish.network/learn/blog
- type: Support
  url: https://discord.ironfish.network/
- type: TermsOfService
  url: https://ironfish.network/terms-and-conditions
- type: PrivacyPolicy
  url: https://ironfish.network/privacy-policy
- type: Whitepaper
  url: https://ironfish.network/learn/whitepaper
- type: Packages
  url: packages/iron-fish-packages.yml
- type: SDKs
  url: packages/iron-fish-packages.yml
- type: CLI
  url: cli/iron-fish-cli.yml
- type: Authentication
  url: authentication/iron-fish-authentication.yml
- type: Conventions
  url: conventions/iron-fish-conventions.yml
- type: ChangeLog
  url: changelog/iron-fish-changelog.yml
- type: LLMsTxt
  url: llms/iron-fish-llms.txt
- type: DomainSecurity
  url: security/iron-fish-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence