# Nexus Mutual

**Canonical:** https://apis.io/providers/nexus-mutual/  
**Website:** https://nexusmutual.io  
**APIs profiled:** 3

Nexus Mutual is a decentralized insurance protocol built on Ethereum that enables members to share risk through a discretionary mutual structure. Since 2019 it has provided over 10,000 covers protecting more than $6 billion in crypto assets against smart contract hacks, custody failure, slashing events, depeg occurrences, and bespoke protocol risks. The public Cover Router REST API exposes endpoints for querying quote pricing, per-product and per-pool capacity, and the full product catalogue, enabling third-party frontends and integrators to build point-of-sale cover purchase flows on top of the Nexus Mutual protocol.

## Kin Score — 42.2 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 42.2).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 54.5 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 44.7 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

Regulatory layer — **Insurance**: 28.8 (matched via tags).

## Agent readiness — 31.6 (agent-aware)

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

## Access

Free — onboarding: unknown, pricing: free, trial: no (confidence: medium).

## APIs (3)

- **Nexus Mutual Capacity API** — The Capacity API from Nexus Mutual — 4 operation(s) for capacity.
- **Nexus Mutual Pricing API** — The Pricing API from Nexus Mutual — 1 operation(s) for pricing.
- **Nexus Mutual Quote API** — The Quote API from Nexus Mutual — 1 operation(s) for quote.

## Agentic access (1)

- **Nexus Mutual Agentic Access** — 6 operations

## Security (1)

- **Nexus Mutual Domain Security** — TLSv1.3 · DNSSEC · DMARC

## Plans (1)

- **Plans**

## Tags

Decentralized Insurance, DeFi, Ethereum, Smart Contract Cover, Crypto Insurance, Protocol Protection, Staking, Claims

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