# Starkware

**Canonical:** https://apis.io/providers/starkware/  
**Website:** https://starkware.co  
**APIs profiled:** 4

StarkWare Industries builds STARK-proof (Scalable Transparent ARgument of Knowledge) blockchain scaling technology for Ethereum. Its flagship products are Starknet, a permissionless decentralized validity-rollup (ZK-Rollup) where developers deploy Cairo smart contracts, and StarkEx, an application-specific scaling engine for exchanges (spot, perpetual, NFT, and payments). The developer surface centers on the Starknet Node JSON-RPC API (read, write, trace, and WebSocket methods specified in OpenRPC), a Wallet JSON-RPC API, a Proving API, StarkEx REST gateways, first-party SDKs (starknet.js, starknet.py, starkex-js), the starkli CLI, and the Cairo programming language and prover stack (Stwo, Cairo VM). This profile catalogs those machine-readable specs and developer artifacts for the API Evangelist network.

## Kin Score — 38.9 / 100 (thin)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 38.9).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 42.7 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 75.6 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 23.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | derived |
| Agent Skills | derived |
| 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

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (4)

- **Starknet Node JSON-RPC API** — The Starknet full-node JSON-RPC API (OpenRPC), covering read methods (blocks, transactions, state, classes, events, fees), write methods (add invoke/declare/deploy-account trans...
- **Starknet Wallet JSON-RPC API** — The Starknet wallet JSON-RPC API (SNIP-based) that dApps use to talk to browser/extension wallets: request accounts, permissions, chain switching, typed-data signing, and submit...
- **Starknet Proving API** — The Starknet proving JSON-RPC API for submitting transactions to be proven by the STARK prover.
- **StarkEx REST API** — StarkEx application-specific scaling engine REST API for spot and perpetual trading systems, exposing Gateway, Feeder Gateway, and Availability Gateway endpoints plus documented...

## MCP servers (1)

- **Starkware MCP Server** — Official StarkWare MCP (Model Context Protocol) server that exposes all Starknet JSON-RPC v0.10.2+ read and trace methods as agent tools, letting an assistant read blocks, trans...

## Security (2)

- **Starkware Authentication** — none/api-key-at-provider · 3 schemes
- **Starkware Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

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

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