# Matter Labs

**Canonical:** https://apis.io/providers/matter-labs/  
**Website:** https://matterlabs.com/  
**APIs profiled:** 1

Matter Labs is the company behind ZKsync, a family of zero-knowledge (ZK) rollup Layer 2 scaling solutions for Ethereum. Its flagship network, ZKsync Era, is an EVM-compatible ZK rollup that inherits Ethereum security while offering low fees and high throughput. For developers ZKsync Era exposes a public, Ethereum-compatible JSON-RPC API (the standard eth_* namespace) extended with a ZKsync-specific zks_* namespace covering L1 batches, L1<->L2 bridging, fee and gas-per-pubdata estimation, token discovery, and Merkle proofs, plus a WebSocket pub/sub surface. First-party SDKs ship for JavaScript/TypeScript (zksync-ethers), Python (zksync2), and Go (zksync2-go), alongside a zksync-cli developer tool and native account-abstraction support. Matter Labs also builds the ZK Stack for launching sovereign ZK chains. The company is backed by a16z.

## Kin Score — 36.8 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 36.8).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 45.1 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 64.3 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

## Agent readiness — 28.6 (agent-aware)

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

## Access

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

## APIs (1)

- **ZKsync Era JSON-RPC API** — Ethereum-compatible JSON-RPC 2.0 API for the ZKsync Era ZK rollup. Standard eth_* methods plus the ZKsync-specific zks_* namespace (batches, bridging, fee estimation, proofs) ov...

## MCP servers (1)

- **Matter Labs MCP Server**

## Security (2)

- **Matter Labs Authentication** — none · 1 scheme
- **Matter Labs Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Company, Blockchain, Ethereum, Layer 2, Zero-Knowledge Proofs, Rollup, JSON-RPC, Web3, Cryptography, Scaling

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