Spacemesh

Spacemesh is a permissionless, self-mining proof-of-space-time (PoST) layer-1 blockchain built to run on ordinary home computers using unused disk space rather than specialized hardware or large capital stake. Its full-node software (go-spacemesh) exposes a gRPC API with a grpc-gateway REST/JSON facade for reading chain state — accounts, transactions, layers, rewards and activations (ATXs) — and for submitting transactions. Surfaced as a Paradigm portfolio company; the protocol, node, API design and developer tooling remain open source under the spacemeshos GitHub org, though the company's spacemesh.io / spacemesh.network web and hosted-API domains are now parked and the last node release was April 2025 (project appears dormant).

Spacemesh publishes 8 APIs on the APIs.io network, including AccountService API, ActivationService API, LayerService API, and 5 more. Tagged areas include Company, Crypto Infrastructure, Blockchain, Cryptocurrency, and Proof of Space-Time.

Spacemesh’s developer surface includes documentation, API reference, CLI, changelog, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub
31.2/100 thin ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
8 APIs 1 MCP Servers
CompanyCrypto InfrastructureBlockchainCryptocurrencyProof of Space-TimeLayer 1gRPCNode APIOpen-Source

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 31.2/100 · thin
Contract Quality 11.0 / 25
Developer Ergonomics 6.5 / 20
Access Clarity 0.0 / 20
Operational Transparency 2.4 / 13
Contract Governance 2.0 / 12
Discoverability 9.3 / 10
Agent readiness — 25/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 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 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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/spacemesh: 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 8

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

Spacemesh AccountService API

The AccountService API from Spacemesh — 2 operation(s) for accountservice.

Spacemesh ActivationService API

The ActivationService API from Spacemesh — 6 operation(s) for activationservice.

Spacemesh LayerService API

The LayerService API from Spacemesh — 2 operation(s) for layerservice.

Spacemesh MalfeasanceService API

The MalfeasanceService API from Spacemesh — 2 operation(s) for malfeasanceservice.

Spacemesh NetworkService API

The NetworkService API from Spacemesh — 2 operation(s) for networkservice.

Spacemesh NodeService API

The NodeService API from Spacemesh — 2 operation(s) for nodeservice.

Spacemesh RewardService API

The RewardService API from Spacemesh — 2 operation(s) for rewardservice.

Spacemesh TransactionService API

The TransactionService API from Spacemesh — 8 operation(s) for transactionservice.

Scroll for all 8

Open Collections 9

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

API Collection

OPEN COLLECTION

Spacemesh AccountService API

OPEN COLLECTION

Spacemesh AccountService ActivationService API

OPEN COLLECTION

Spacemesh AccountService LayerService API

OPEN COLLECTION

Spacemesh AccountService MalfeasanceService API

OPEN COLLECTION

Spacemesh AccountService NetworkService API

OPEN COLLECTION

Spacemesh AccountService NodeService API

OPEN COLLECTION

Spacemesh AccountService RewardService API

OPEN COLLECTION

Spacemesh AccountService TransactionService API

OPEN COLLECTION

Scroll for all 9

MCP Servers 1

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

Spacemesh MCP Server

MCP SERVER

Security Posture 1

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

Spacemesh Domain Security

TLSv1.3

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Spacemesh Agentic Access

26 operations · 16 acting

26 operations · 16 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 AgenticAccess
AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance
 Lifecycle
Lifecycle
 DataModel
DataModel

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 SourceCode
SourceCode
 Packages
Packages
 SDKs
SDKs
 CLI
CLI

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog
ChangeLog

Commercial 1

Pricing, plans, and the legal terms of use

License
License

Company 1

The organization behind the API

Website
Website

Other 2

Properties that don't map to a standard resource type

Overlay
Overlay
 Protobuf
Protobuf

Source (apis.yml)

apis.yml Raw ↑ 
aid: spacemesh
name: Spacemesh
description: Spacemesh is a permissionless, self-mining proof-of-space-time (PoST) layer-1 blockchain built to run on ordinary
  home computers using unused disk space rather than specialized hardware or large capital stake. Its full-node software (go-spacemesh)
  exposes a gRPC API with a grpc-gateway REST/JSON facade for reading chain state — accounts, transactions, layers, rewards
  and activations (ATXs) — and for submitting transactions. Surfaced as a Paradigm portfolio company; the protocol, node,
  API design and developer tooling remain open source under the spacemeshos GitHub org, though the company's spacemesh.io
  / spacemesh.network web and hosted-API domains are now parked and the last node release was April 2025 (project appears
  dormant).
url: https://raw.githubusercontent.com/api-evangelist/spacemesh/refs/heads/main/apis.yml
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://github.com/spacemeshos.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- paradigm
x-tier: enriched
x-tier-reason: gRPC + grpc-gateway node API captured from official GitHub org
x-project-status: dormant (web/API domains parked; last node release 2025-04-15)
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Crypto Infrastructure
- Blockchain
- Cryptocurrency
- Proof of Space-Time
- Layer 1
- gRPC
- Node API
- Open-Source
tags_raw:
- Company
- Crypto Infrastructure
- Blockchain
- Cryptocurrency
- Proof of Space-Time
- Layer 1
- gRPC
- Node API
- Open Source
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: spacemesh:spacemesh-accountservice-api
  name: Spacemesh AccountService API
  description: The AccountService API from Spacemesh — 2 operation(s) for accountservice.
  humanURL: https://github.com/spacemeshos/api
  baseURL: https://api.spacemesh.network
  tags:
  - AccountService
  properties:
  - type: OpenAPI
    url: openapi/spacemesh-accountservice-api-openapi.yml
  - type: Protobuf
    url: grpc/spacemesh/v2beta1/v2beta1.proto
  - type: Documentation
    url: https://github.com/spacemeshos/api
  - type: Protobuf
    url: grpc/spacemesh/v1/node.proto
- aid: spacemesh:spacemesh-activationservice-api
  name: Spacemesh ActivationService API
  description: The ActivationService API from Spacemesh — 6 operation(s) for activationservice.
  humanURL: https://github.com/spacemeshos/api
  baseURL: https://api.spacemesh.network
  tags:
  - ActivationService
  properties:
  - type: OpenAPI
    url: openapi/spacemesh-activationservice-api-openapi.yml
  - type: Protobuf
    url: grpc/spacemesh/v2beta1/v2beta1.proto
  - type: Documentation
    url: https://github.com/spacemeshos/api
  - type: Protobuf
    url: grpc/spacemesh/v1/node.proto
- aid: spacemesh:spacemesh-layerservice-api
  name: Spacemesh LayerService API
  description: The LayerService API from Spacemesh — 2 operation(s) for layerservice.
  humanURL: https://github.com/spacemeshos/api
  baseURL: https://api.spacemesh.network
  tags:
  - LayerService
  properties:
  - type: OpenAPI
    url: openapi/spacemesh-layerservice-api-openapi.yml
  - type: Protobuf
    url: grpc/spacemesh/v2beta1/v2beta1.proto
  - type: Documentation
    url: https://github.com/spacemeshos/api
  - type: Protobuf
    url: grpc/spacemesh/v1/node.proto
- aid: spacemesh:spacemesh-malfeasanceservice-api
  name: Spacemesh MalfeasanceService API
  description: The MalfeasanceService API from Spacemesh — 2 operation(s) for malfeasanceservice.
  humanURL: https://github.com/spacemeshos/api
  baseURL: https://api.spacemesh.network
  tags:
  - MalfeasanceService
  properties:
  - type: OpenAPI
    url: openapi/spacemesh-malfeasanceservice-api-openapi.yml
  - type: Protobuf
    url: grpc/spacemesh/v2beta1/v2beta1.proto
  - type: Documentation
    url: https://github.com/spacemeshos/api
  - type: Protobuf
    url: grpc/spacemesh/v1/node.proto
- aid: spacemesh:spacemesh-networkservice-api
  name: Spacemesh NetworkService API
  description: The NetworkService API from Spacemesh — 2 operation(s) for networkservice.
  humanURL: https://github.com/spacemeshos/api
  baseURL: https://api.spacemesh.network
  tags:
  - Network Service
  tags_raw:
  - NetworkService
  properties:
  - type: OpenAPI
    url: openapi/spacemesh-networkservice-api-openapi.yml
  - type: Protobuf
    url: grpc/spacemesh/v2beta1/v2beta1.proto
  - type: Documentation
    url: https://github.com/spacemeshos/api
  - type: Protobuf
    url: grpc/spacemesh/v1/node.proto
- aid: spacemesh:spacemesh-nodeservice-api
  name: Spacemesh NodeService API
  description: The NodeService API from Spacemesh — 2 operation(s) for nodeservice.
  humanURL: https://github.com/spacemeshos/api
  baseURL: https://api.spacemesh.network
  tags:
  - NodeService
  properties:
  - type: OpenAPI
    url: openapi/spacemesh-nodeservice-api-openapi.yml
  - type: Protobuf
    url: grpc/spacemesh/v2beta1/v2beta1.proto
  - type: Documentation
    url: https://github.com/spacemeshos/api
  - type: Protobuf
    url: grpc/spacemesh/v1/node.proto
- aid: spacemesh:spacemesh-rewardservice-api
  name: Spacemesh RewardService API
  description: The RewardService API from Spacemesh — 2 operation(s) for rewardservice.
  humanURL: https://github.com/spacemeshos/api
  baseURL: https://api.spacemesh.network
  tags:
  - RewardService
  properties:
  - type: OpenAPI
    url: openapi/spacemesh-rewardservice-api-openapi.yml
  - type: Protobuf
    url: grpc/spacemesh/v2beta1/v2beta1.proto
  - type: Documentation
    url: https://github.com/spacemeshos/api
  - type: Protobuf
    url: grpc/spacemesh/v1/node.proto
- aid: spacemesh:spacemesh-transactionservice-api
  name: Spacemesh TransactionService API
  description: The TransactionService API from Spacemesh — 8 operation(s) for transactionservice.
  humanURL: https://github.com/spacemeshos/api
  baseURL: https://api.spacemesh.network
  tags:
  - TransactionService
  properties:
  - type: OpenAPI
    url: openapi/spacemesh-transactionservice-api-openapi.yml
  - type: Protobuf
    url: grpc/spacemesh/v2beta1/v2beta1.proto
  - type: Documentation
    url: https://github.com/spacemeshos/api
  - type: Protobuf
    url: grpc/spacemesh/v1/node.proto
common:
- type: Overlay
  url: overlays/spacemesh-v1-overlay.yaml
- type: License
  name: MIT
  url: https://github.com/spacemeshos/go-spacemesh/blob/develop/LICENSE
- type: Website
  url: https://spacemesh.io
- type: GitHubOrganization
  url: https://github.com/spacemeshos
- type: SourceCode
  url: https://github.com/spacemeshos/go-spacemesh
- type: Documentation
  url: https://github.com/spacemeshos/api
- type: APIReference
  url: https://github.com/spacemeshos/api
- type: Protobuf
  url: grpc/spacemesh/v2beta1/v2beta1.proto
- type: Packages
  url: packages/spacemesh-packages.yml
- type: SDKs
  url: packages/spacemesh-packages.yml
- type: CLI
  url: cli/spacemesh-cli.yml
- type: MCPServer
  url: mcp/spacemesh-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/spacemesh-llms.txt
- type: Conventions
  url: conventions/spacemesh-conventions.yml
- type: ErrorCatalog
  url: errors/spacemesh-problem-types.yml
- type: Conformance
  url: conformance/spacemesh-conformance.yml
- type: Lifecycle
  url: lifecycle/spacemesh-lifecycle.yml
- type: ChangeLog
  url: changelog/spacemesh-changelog.yml
- type: DataModel
  url: data-model/spacemesh-data-model.yml
- type: AgenticAccess
  url: agentic-access/spacemesh-agentic-access.yml
- type: DomainSecurity
  url: security/spacemesh-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 20
  pass: local-v1