# Spacemesh

**Canonical:** https://apis.io/providers/spacemesh/  
**Website:** https://spacemesh.io  
**APIs profiled:** 8

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).

## Kin Score — 31.2 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+1.1 from 30.1).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 44.1 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 32.7 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 25.4 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (8)

- **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.

## MCP servers (1)

- **Spacemesh MCP Server**

## Agentic access (1)

- **Spacemesh Agentic Access** — 26 operations · 16 acting

## Security (1)

- **Spacemesh Domain Security** — TLSv1.3

## Tags

Company, Crypto Infrastructure, Blockchain, Cryptocurrency, Proof of Space-Time, Layer 1, gRPC, Node API, Open-Source

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/spacemesh/). Scores are computed from the provider's own public artifacts under a published rubric.