# Cypherium

**Canonical:** https://apis.io/providers/cypherium/  
**Website:** https://www.cypherium.io/  
**APIs profiled:** 2

Cypherium is a permissionless Layer-1 blockchain built to bridge centralized (CeFi) and decentralized (DeFi) finance and bring real-world assets on-chain at scale. It runs CypherBFT, a hybrid consensus that pairs GPU proof-of-work committee election with HotStuff Byzantine Fault Tolerance for near-instant finality, and is EVM/Solidity compatible (EVM chain ID 16166). Products include CypherLink (cross-ledger notary), Cypherium Connect (bank integration plugin, marketed as ISO 20022 compliant), the Cypherium Validator, and Cypherium ID (decentralized identity). Developers integrate through an Ethereum-style JSON-RPC node API (eth/web3/net/ personal/miner/txpool/admin namespaces over HTTP, WS and IPC) and a Coinbase Rosetta API implementation for exchange and wallet integration. Surfaced as a portfolio company of Pantera Capital and enriched into the API Evangelist network.

## Kin Score — 13.9 / 100 (emerging)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 13.9).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

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

## APIs (2)

- **Cypherium JSON-RPC API** — Ethereum-compatible JSON-RPC node API for the Cypherium Layer-1 mainnet — eth, web3, net, personal, miner, txpool and admin namespaces over HTTP, WebSocket and IPC. EVM chain ID...
- **Rosetta Cypherium API** — Coinbase Rosetta API (Data + Construction) reference implementation for Cypherium, enabling standardized blockchain data access and stateless offline transaction construction fo...

## Security (1)

- **Cypherium Domain Security** — TLSv1.3 · HSTS

## Tags

Company, Crypto, Blockchain, Layer 1, JSON-RPC, EVM, DeFi, Rosetta, Consensus

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