# =nil; Foundation

**Canonical:** https://apis.io/providers/nil-foundation/  
**Website:** https://nil.foundation  
**APIs profiled:** 1

=nil; Foundation is the developer of =nil;, an Ethereum Layer 2 blockchain powered by zkSharding that delivers horizontal scalability with built-in cross-shard communication and zero-knowledge proofs. On =nil; all accounts are smart contracts (no EOAs), state is partitioned across execution shards, and correctness is verified with zk proofs while Ethereum provides data availability and consensus. Developers build with Solidity smart contracts and interact with the cluster through an Ethereum-style JSON-RPC 2.0 API, the @nilfoundation/niljs TypeScript client library, the =nil; CLI, and a Hardhat plugin. =nil; Foundation also develops zkLLVM (a zero-knowledge proof circuit compiler) and the Placeholder proof system with an in-EVM verifier. The company is a portfolio company of Polychain Capital.

## Kin Score — 26.0 / 100 (emerging)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (-0.4 from 26.4).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 66.7 |
| Commercial Clarity | 10.5 |
| Access Clarity | 10.5 |

## Agent readiness — 15.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | documented |
| Error Semantics | documented |
| 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 |

## Access

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

## APIs (1)

- **=nil; JSON-RPC API** — Ethereum-style JSON-RPC 2.0 API exposing the =nil; cluster — blocks, transactions (messages), accounts, contract calls, gas pricing, shard enumeration, tokens, and event filters...

## MCP servers (1)

- **nil-foundation-mcp.yml**

## Security (2)

- **Nil Foundation Authentication** — none/signature · 2 schemes
- **Nil Foundation Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Zk Infrastructure, Blockchain, Layer 2, Ethereum, Zero Knowledge Proofs, zkSharding, JSON-RPC, Smart Contracts, Developer Tools

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