Acala

Acala is the decentralized finance (DeFi) and liquidity hub of the Polkadot ecosystem, operating the Acala parachain (and its Kusama-based sister network Karura). Acala offers a scalable, Ethereum-compatible smart-contract platform called Acala EVM+, a decentralized stablecoin (aUSD), a liquid staking derivative (LDOT/LcDOT), and a trustless staking and swap layer. For developers, Acala EVM+ exposes a standard Ethereum JSON-RPC interface through its EVM+ RPC Adapter (eth-rpc-adapter), letting existing Ethereum dApps, wallets (MetaMask), and tooling (Hardhat, Remix, ethers.js, Truffle) interact with the Substrate-based chain with minimal changes, alongside a Substrate WebSocket RPC via the @acala-network Polkadot.js API and SDK packages.

Acala publishes 1 API on the APIs.io network. Tagged areas include Company, Crypto, Blockchain, DeFi, and Polkadot.

Acala’s developer surface includes documentation, getting-started guide, engineering blog, support, sandbox, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub

23.7/100 emerging ▬ flat Agent 16/100 agent aware Full breakdown ↓
scored 2026-07-21 · rubric v0.4

1 APIs 0 Features

CompanyCryptoBlockchainDeFiPolkadotSmart ContractsEVMStablecoinJSON-RPCWeb3

API Rating

API Evangelist Rating How this is scored →
scored 2026-07-21 · rubric v0.4

Composite quality — 23.7/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 9.6 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 9.3 / 10

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 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

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/acala: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Sandbox

Sandbox

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

Idempotency

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: acala
name: Acala
description: Acala is the decentralized finance (DeFi) and liquidity hub of the Polkadot ecosystem, operating the Acala parachain
  (and its Kusama-based sister network Karura). Acala offers a scalable, Ethereum-compatible smart-contract platform called
  Acala EVM+, a decentralized stablecoin (aUSD), a liquid staking derivative (LDOT/LcDOT), and a trustless staking and swap
  layer. For developers, Acala EVM+ exposes a standard Ethereum JSON-RPC interface through its EVM+ RPC Adapter (eth-rpc-adapter),
  letting existing Ethereum dApps, wallets (MetaMask), and tooling (Hardhat, Remix, ethers.js, Truffle) interact with the
  Substrate-based chain with minimal changes, alongside a Substrate WebSocket RPC via the @acala-network Polkadot.js API and
  SDK packages.
url: https://raw.githubusercontent.com/api-evangelist/acala/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- pantera-capital
- polychain
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-17'
image: https://acala.network/acala-og-card2.png
tags:
- Company
- Crypto
- Blockchain
- DeFi
- Polkadot
- Smart Contracts
- EVM
- Stablecoin
- JSON-RPC
- Web3
apis:
- name: Acala EVM+ JSON-RPC
  description: Acala EVM+ exposes a standard Ethereum JSON-RPC API through the EVM+ RPC Adapter, which wraps Substrate RPC
    calls to provide Ethereum execution-apis compatible endpoints (eth_*, net_*, web3_*) so Ethereum dApps and tooling can
    interact with the Acala and Karura EVM+ environments. A Substrate WebSocket RPC is also available for Polkadot.js-based
    access.
  humanURL: https://evmdocs.acala.network/
  baseURL: https://eth-rpc-acala.aca-api.network
  tags:
  - EVM
  - JSON-RPC
  - Smart Contracts
  - Ethereum
  properties:
  - type: Documentation
    url: https://evmdocs.acala.network/
  - type: APIReference
    url: https://ethereum.github.io/execution-apis/api-documentation/
  - type: GettingStarted
    url: https://evmdocs.acala.network/readme.md
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/acala-domain-security.yml
- type: Website
  url: https://acala.network/
- type: DeveloperPortal
  url: https://evmdocs.acala.network/
- type: Documentation
  url: https://wiki.acala.network/
- type: GettingStarted
  url: https://evmdocs.acala.network/readme.md
- type: GitHubOrganization
  url: https://github.com/AcalaNetwork
- type: Blog
  url: https://acala.network/blog
- type: Support
  url: https://discord.gg/5JJgXKSznc
- type: PrivacyPolicy
  url: https://acala.network/privacy-policy
- type: TermsOfService
  url: https://acala.network/terms-of-use
- type: Packages
  url: packages/acala-packages.yml
- type: SDKs
  url: packages/acala-packages.yml
- type: LLMsTxt
  url: llms/acala-llms.txt
- type: Conformance
  url: conformance/acala-conformance.yml
- type: ErrorCatalog
  url: errors/acala-error-codes.yml
- type: Lifecycle
  url: lifecycle/acala-lifecycle.yml
- type: Sandbox
  url: sandbox/acala-sandbox.yml
- type: Conventions
  url: conventions/acala-conventions.yml
- type: Idempotency
  url: conventions/acala-conventions.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence