Aeternity

æternity is an open-source layer-1 blockchain platform, launched in 2018 and stewarded by the Aeternity Foundation, whose protocol ships two public, unauthenticated HTTP APIs: the æternity node API (OpenAPI 3.0, 79 operations across chain, transaction, account, contract, oracle, naming-system, state-channel and node-operator surfaces) and the æternity Middleware (ae_mdw) API (OpenAPI 3.0, 76 REST operations plus an open GraphQL endpoint with 85 query fields and a WebSocket subscription stream). The platform adds the Sophia smart-contract language, the FATE virtual machine, state channels, protocol-native oracles, the æternity Naming System (AENS) and Hyperchains, and is consumed through first-party JavaScript/TypeScript, CLI and calldata SDKs published to npm, plus the æScan explorer, ÆStudio IDE and Superhero wallet/DEX.

Aeternity publishes 18 API contracts indexed on the APIs.io network, including Accounts API, Aex141 API, Aex9 API, and 15 more. Tagged areas include Blockchain, Layer 1, Smart Contracts, Cryptocurrency, and Web3.

The Aeternity catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Aeternity’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, changelog, CLI, and 27 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

55.0/100 strong ▬ flat Agent 45/100 agent ready Front door AI 3/6 light Heartbeat 50/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessOpen

4 published contracts 1 MCP Servers 4 Agent Skills

Blockchain Layer 1 Smart Contracts Cryptocurrency Web3 Distributed Ledger Open Source GraphQLState ChannelsOracleNaming SystemDeveloper Tools Real-Time

Kin Score

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

Composite quality — 55.0/100 · strong

Contract Quality 10.3 / 19

Developer Ergonomics 12.1 / 15

Access Clarity 3.2 / 15

Operational Transparency 6.4 / 10

Contract Governance 1.6 / 9

Discoverability 6.0 / 8

Regulatory Posture 5.1 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 45/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

3 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 21.1 — up to +15.8 composite points
Contract Quality scores 55.1 — up to +11.2 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/aeternity/apis.yml: open an issue on github.com/api-evangelist/aeternity 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
LF Decentralized Trust (Hyperledger) Members and Projects (enterprise blockchain, digital identity, CBDC)	distribution	19.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 4

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.

GraphQL

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

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

APIs 18

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

Aeternity MCP Server

A remote Model Context Protocol endpoint published on aeternity.com and advertised through RFC 9728 protected-resource metadata and RFC 8414 authorization-server metadata. The e...

Aeternity Accounts API

The Accounts API from Aeternity — 7 operation(s) for accounts.

Aeternity Aex141 API

The Aex141 API from Aeternity — 7 operation(s) for aex141.

Aeternity Aex9 API

The Aex9 API from Aeternity — 6 operation(s) for aex9.

Aeternity Channels API

The Channels API from Aeternity — 2 operation(s) for channels.

Aeternity Contracts API

The Contracts API from Aeternity — 3 operation(s) for contracts.

Aeternity Dex API

The Dex API from Aeternity — 2 operation(s) for dex.

Aeternity External API

External API

Aeternity Hyperchain API

The Hyperchain API from Aeternity — 8 operation(s) for hyperchain.

Aeternity Internal API

Internal API

Aeternity Key Blocks API

The Key Blocks API from Aeternity — 3 operation(s) for key blocks.

Aeternity Micro Blocks API

The Micro Blocks API from Aeternity — 2 operation(s) for micro blocks.

Aeternity Names API

The Names API from Aeternity — 9 operation(s) for names.

Aeternity Oracles API

The Oracles API from Aeternity — 5 operation(s) for oracles.

Aeternity Stats API

The Stats API from Aeternity — 15 operation(s) for stats.

Aeternity Status API

The Status API from Aeternity — 1 operation(s) for status.

Aeternity Transactions API

The Transactions API from Aeternity — 5 operation(s) for transactions.

Aeternity Transfers API

The Transfers API from Aeternity — 1 operation(s) for transfers.

Scroll for all 18

MCP Servers 1

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

Aeternity MCP Server

Remote MCP server at aeternity.com requiring OAuth.

MCP SERVER

Agent Skills 4

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

aeternity-inspect-token-contract

AGENT SKILL

aeternity-read-account-history

AGENT SKILL

aeternity-submit-transaction

AGENT SKILL

aeternity-watch-chain-events

AGENT SKILL

Aeternity API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Aeternity Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Aeternity Rate Limits

6 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Aeternity Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Aeternity Middleware WebSocket API

The æternity middleware (ae_mdw) WebSocket subscription stream. Clients subscribe to chain events and receive an asynchronous notification each time one occurs. Every event is p...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Aeternity API Rules

57 rules · 39 errors 15 warnings 3 info

SPECTRAL

OpenAPI Overlays 2

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Aeternity Middleware Overlay

2 actions · update

DERIVED

Aeternity Node Overlay

5 actions · update

DERIVED

Security Posture 2

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

Aeternity Authentication

0 schemes

SECURITY

Aeternity Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Aeternity Scopes

1 scope · authorization_code

1 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Sandbox

Sandbox

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

AsyncAPI

AsyncAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

WellKnown

AgentSkill

MCPServer

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conformance

Idempotency

Conventions

ErrorCatalog

DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

OAuthScopes

OAuthScopes

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Overlay

Overlay

Overlay

Overlay

Source (apis.yml)

aid: aeternity
name: Aeternity
description: 'æternity is an open-source layer-1 blockchain platform, launched in 2018 and stewarded by the Aeternity Foundation,
  whose protocol ships two public, unauthenticated HTTP APIs: the æternity node API (OpenAPI 3.0, 79 operations across chain,
  transaction, account, contract, oracle, naming-system, state-channel and node-operator surfaces) and the æternity Middleware
  (ae_mdw) API (OpenAPI 3.0, 76 REST operations plus an open GraphQL endpoint with 85 query fields and a WebSocket subscription
  stream). The platform adds the Sophia smart-contract language, the FATE virtual machine, state channels, protocol-native
  oracles, the æternity Naming System (AENS) and Hyperchains, and is consumed through first-party JavaScript/TypeScript, CLI
  and calldata SDKs published to npm, plus the æScan explorer, ÆStudio IDE and Superhero wallet/DEX.'
url: https://raw.githubusercontent.com/api-evangelist/aeternity/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: medium
  source:
  - authentication
  - scopes
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://aeternity.com/wp-content/uploads/2022/05/aeternity-social-thumb.webp
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-09-12'
modified: '2026-09-12'
position: Producing
x-docs-platform: gitbook
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-17
tags:
- Blockchain
- Layer 1
- Smart Contracts
- Cryptocurrency
- Web3
- Distributed Ledger
- Open Source
- GraphQL
- State Channels
- Oracle
- Naming System
- Developer Tools
- Real-Time
tags_raw:
- blockchain
- layer-1
- smart-contracts
- cryptocurrency
- web3
- distributed-ledger
- open-source
- graphql
- state-channels
- oracles
- naming-system
- developer-tools
- Open-Source
- Real-Time
apis:
- name: Aeternity MCP Server
  description: A remote Model Context Protocol endpoint published on aeternity.com and advertised through RFC 9728 protected-resource
    metadata and RFC 8414 authorization-server metadata. The endpoint is OAuth 2.1 gated (authorization_code + PKCE S256,
    single `mcp` scope, dynamic client registration via client-id metadata documents); an anonymous tools/list returns 401,
    so the tool set could not be enumerated.
  humanURL: https://aeternity.com/
  baseURL: https://aeternity.com/wp-json/mcp/mcp-oauth-server
  tags:
  - MCP
  - Agents
  - Blockchain
  tags_raw:
  - mcp
  - agents
  - blockchain
  properties:
  - type: MCPServer
    url: mcp/aeternity-mcp.yml
  - type: ToolCrosswalk
    url: mcp/aeternity-tool-crosswalk.yml
  x-surface: platform-generated
  x-platform: wordpress
  x-platform-surface: mcp-plugin
- aid: aeternity:aeternity-accounts-api
  name: Aeternity Accounts API
  description: The Accounts API from Aeternity — 7 operation(s) for accounts.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/aeternity-accounts-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-aex141-api
  name: Aeternity Aex141 API
  description: The Aex141 API from Aeternity — 7 operation(s) for aex141.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Aex141
  properties:
  - type: OpenAPI
    url: openapi/aeternity-aex141-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-aex9-api
  name: Aeternity Aex9 API
  description: The Aex9 API from Aeternity — 6 operation(s) for aex9.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Aex9
  properties:
  - type: OpenAPI
    url: openapi/aeternity-aex9-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-channels-api
  name: Aeternity Channels API
  description: The Channels API from Aeternity — 2 operation(s) for channels.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Channels
  properties:
  - type: OpenAPI
    url: openapi/aeternity-channels-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-contracts-api
  name: Aeternity Contracts API
  description: The Contracts API from Aeternity — 3 operation(s) for contracts.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Contracts
  properties:
  - type: OpenAPI
    url: openapi/aeternity-contracts-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-dex-api
  name: Aeternity Dex API
  description: The Dex API from Aeternity — 2 operation(s) for dex.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Decentralized Exchange
  tags_raw:
  - Dex
  - DEX
  properties:
  - type: OpenAPI
    url: openapi/aeternity-dex-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-external-api
  name: Aeternity External API
  description: External API
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - External
  tags_raw:
  - external
  properties:
  - type: OpenAPI
    url: openapi/aeternity-external-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-hyperchain-api
  name: Aeternity Hyperchain API
  description: The Hyperchain API from Aeternity — 8 operation(s) for hyperchain.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Hyperchain
  properties:
  - type: OpenAPI
    url: openapi/aeternity-hyperchain-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-internal-api
  name: Aeternity Internal API
  description: Internal API
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Internal
  tags_raw:
  - internal
  properties:
  - type: OpenAPI
    url: openapi/aeternity-internal-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-key-blocks-api
  name: Aeternity Key Blocks API
  description: The Key Blocks API from Aeternity — 3 operation(s) for key blocks.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Key Blocks
  properties:
  - type: OpenAPI
    url: openapi/aeternity-key-blocks-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-micro-blocks-api
  name: Aeternity Micro Blocks API
  description: The Micro Blocks API from Aeternity — 2 operation(s) for micro blocks.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Micro Blocks
  properties:
  - type: OpenAPI
    url: openapi/aeternity-micro-blocks-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-names-api
  name: Aeternity Names API
  description: The Names API from Aeternity — 9 operation(s) for names.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Name
  tags_raw:
  - Names
  properties:
  - type: OpenAPI
    url: openapi/aeternity-names-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-oracles-api
  name: Aeternity Oracles API
  description: The Oracles API from Aeternity — 5 operation(s) for oracles.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Oracle
  tags_raw:
  - Oracles
  properties:
  - type: OpenAPI
    url: openapi/aeternity-oracles-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-stats-api
  name: Aeternity Stats API
  description: The Stats API from Aeternity — 15 operation(s) for stats.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/aeternity-stats-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-status-api
  name: Aeternity Status API
  description: The Status API from Aeternity — 1 operation(s) for status.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/aeternity-status-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-transactions-api
  name: Aeternity Transactions API
  description: The Transactions API from Aeternity — 5 operation(s) for transactions.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Transaction
  tags_raw:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/aeternity-transactions-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
- aid: aeternity:aeternity-transfers-api
  name: Aeternity Transfers API
  description: The Transfers API from Aeternity — 1 operation(s) for transfers.
  humanURL: https://api-docs.aeternity.io/
  baseURL: https://mainnet.aeternity.io/v3
  tags:
  - Transfers
  properties:
  - type: OpenAPI
    url: openapi/aeternity-transfers-api-openapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis/node-api-reference
  - type: APIReference
    url: https://api-docs.aeternity.io/
  - type: Authentication
    url: authentication/aeternity-authentication.yml
  - type: Conventions
    url: conventions/aeternity-conventions.yml
  - type: Idempotency
    url: conventions/aeternity-conventions.yml
  - type: ErrorCatalog
    url: errors/aeternity-problem-types.yml
  - type: DataModel
    url: data-model/aeternity-data-model.yml
  - type: GraphQL
    url: graphql/aeternity-middleware.graphql
  - type: AsyncAPI
    url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
  - type: Documentation
    url: https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/middleware
  - type: APIReference
    url: https://mainnet.aeternity.io/mdw/swagger
  - type: ChangeLog
    url: https://github.com/aeternity/ae_mdw/blob/master/CHANGELOG.md
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://aeternity.com/
- type: DeveloperPortal
  url: https://docs.aeternity.com/aeternity-developer-tools
- type: Documentation
  url: https://docs.aeternity.com/
- type: APIReference
  url: https://api-docs.aeternity.io/
- type: GettingStarted
  url: https://docs.aeternity.com/aeternity-developer-tools/quick-start-guide
- type: GitHubOrganization
  url: https://github.com/aeternity
- type: Blog
  url: https://blog.aeternity.com/
- type: Support
  url: https://forum.aeternity.com/
- type: TermsOfService
  url: https://aeternity.com/legal-privacy
- type: PrivacyPolicy
  url: https://aeternity.com/legal-privacy
- type: StatusPage
  url: https://status.aeternity.io/
- type: Lifecycle
  url: lifecycle/aeternity-lifecycle.yml
- type: ChangeLog
  url: changelog/aeternity-changelog.yml
- type: Packages
  url: packages/aeternity-packages.yml
- type: SDKs
  url: packages/aeternity-packages.yml
- type: CLI
  url: cli/aeternity-cli.yml
- type: Sandbox
  url: sandbox/aeternity-sandbox.yml
- type: LLMsTxt
  url: llms/aeternity-llms.txt
- type: WellKnown
  url: well-known/aeternity-well-known.yml
- type: Conformance
  url: conformance/aeternity-conformance.yml
- type: DomainSecurity
  url: security/aeternity-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
- type: OAuthScopes
  url: scopes/aeternity-scopes.yml
- type: RateLimits
  url: rate-limits/aeternity-rate-limits.yml
- type: Plans
  url: plans/aeternity-plans-pricing.yml
- type: Authentication
  url: authentication/aeternity-authentication.yml
- type: Idempotency
  url: conventions/aeternity-conventions.yml
- type: Conventions
  url: conventions/aeternity-conventions.yml
- type: ErrorCatalog
  url: errors/aeternity-problem-types.yml
- type: DataModel
  url: data-model/aeternity-data-model.yml
- type: MCPServer
  url: mcp/aeternity-mcp.yml
- type: AsyncAPI
  url: asyncapi/aeternity-middleware-websocket-asyncapi.yml
- type: Overlay
  url: overlays/aeternity-node-overlay.yaml
- type: Overlay
  url: overlays/aeternity-middleware-overlay.yaml
x-enrichment:
  date: '2026-09-12'
  status: enriched
  artifacts_added: 34
  pass: local-v3

Aeternity API — frequently asked questions

Does Aeternity have an API?

Yes. APIs.io lists 18 APIs from Aeternity, including Aeternity MCP Server, Aeternity Accounts API and Aeternity Aex141 API, and 15 more.

Is there an OpenAPI specification for the Aeternity API?

Yes. APIs.io indexes 17 OpenAPI specifications for Aeternity, each linked for download from this page.

How do I authenticate with the Aeternity API?

Aeternity documents its authentication (0 schemes). The details are profiled on APIs.io as Aeternity Authentication.

Does Aeternity have an MCP server?

Yes. APIs.io lists 1 MCP server for Aeternity: Remote MCP server at aeternity.com requiring OAuth.

Is the Aeternity API ready for AI agents?

Aeternity has a Kin Score of 55.0 out of 100 (strong) and an Agent Readiness score of 45.2 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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