name: Nexus Mutual
description: '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.

  '
image: https://nexusmutual.io/favicon.ico
url: https://nexusmutual.io
baseURL: https://api.nexusmutual.io
tags:
- Decentralized Insurance
- DeFi
- Ethereum
- Smart Contract Cover
- Crypto Insurance
- Protocol Protection
- Staking
- Claims
created: '2019-01-01'
modified: '2026-06-14'
specificationVersion: '0.19'
apis:
- name: Nexus Mutual Cover Router API
  description: 'REST API that computes optimal capacity allocation across Nexus Mutual
    staking pools and returns premium quotes, per-product capacity, and per-pool capacity
    data for cover buyers and integrators building point-of-sale insurance flows on
    Ethereum.

    '
  image: https://nexusmutual.io/favicon.ico
  humanURL: https://docs.nexusmutual.io/developers/
  baseURL: https://api.nexusmutual.io/v2
  tags:
  - Quote
  - Capacity
  - Cover Products
  - Staking Pools
  - Insurance
  properties:
  - type: Documentation
    url: https://docs.nexusmutual.io/developers/
  - type: OpenAPI
    url: https://api.nexusmutual.io/v2/api/docs/
  - type: GitHubRepository
    url: https://github.com/NexusMutual/cover-router
  - url: graphql/nexus-mutual-graphql.md
    type: GraphQL
  contact:
  - FN: Nexus Mutual
    url: https://nexusmutual.io/contact
  endpoints:
  - name: Get Quote
    description: 'Returns premium pricing and optimal staking pool allocation for
      a cover purchase request. Batches current capacities, maps them with price per
      pool, and selects the cheapest capacity combination.

      '
    path: /v2/quote
    method: GET
    parameters:
    - name: productId
      in: query
      required: true
      description: Unique identifier of the cover product
    - name: coverAmount
      in: query
      required: true
      description: Amount of cover requested in wei
    - name: period
      in: query
      required: false
      description: Coverage period in days (28–365)
    - name: paymentAsset
      in: query
      required: false
      description: Asset ID used to pay the premium (ETH, DAI, USDC, cbBTC)
  - name: Get All Capacity
    description: 'Returns current available capacity across all products for a default
      period of 30 days, including allocatedNxm, minAnnualPrice, maxAnnualPrice, and
      per-asset availableCapacity.

      '
    path: /v2/capacity
    method: GET
    parameters:
    - name: period
      in: query
      required: false
      description: Coverage period in days (28–365, default 30)
    - name: withPools
      in: query
      required: false
      description: When true includes capacityPerPool breakdown per product
  - name: Get Product Capacity
    description: 'Returns available capacity for a single cover product across all
      staking pools, with optional per-pool breakdown.

      '
    path: /v2/capacity/{productId}
    method: GET
    parameters:
    - name: productId
      in: path
      required: true
      description: Unique identifier of the cover product
    - name: period
      in: query
      required: false
      description: Coverage period in days (28–365, default 30)
    - name: withPools
      in: query
      required: false
      description: When true includes capacityPerPool detail
  - name: Get Pool Capacity
    description: 'Returns capacity for all products within a specific staking pool
      for the requested period.

      '
    path: /v2/capacity/pools/{poolId}
    method: GET
    parameters:
    - name: poolId
      in: path
      required: true
      description: Unique identifier of the staking pool
    - name: period
      in: query
      required: false
      description: Coverage period in days (28–365, default 30)
  - name: Get Pool Product Capacity
    description: 'Returns capacity and pricing for a specific product within a specific
      staking pool, including minAnnualPrice and maxAnnualPrice.

      '
    path: /v2/capacity/pools/{poolId}/products/{productId}
    method: GET
    parameters:
    - name: poolId
      in: path
      required: true
      description: Unique identifier of the staking pool
    - name: productId
      in: path
      required: true
      description: Unique identifier of the cover product
    - name: period
      in: query
      required: false
      description: Coverage period in days (28–365, default 30)
  - name: Get Products
    description: 'Returns the full catalogue of cover products offered by the Nexus
      Mutual protocol, including product name, category, coverAssets, pricing parameters,
      deprecation status, and allowed staking pools.

      '
    path: /v2/products
    method: GET
common:
- type: Plans
  url: https://nexusmutual.io/plans/
- type: RateLimits
  url: https://nexusmutual.io/rate-limits/
- type: FinOps
  url: https://nexusmutual.io/finops/
- type: GitHubOrganization
  url: https://github.com/NexusMutual
- type: PrivacyPolicy
  url: https://v2.nexusmutual.io/assets/Privacy-Policy.pdf
- type: TermsOfService
  url: https://v2.nexusmutual.io/assets/Terms-of-Use.pdf
- type: StatusPage
  url: https://dune.com/nexus_mutual
- type: Documentation
  url: https://docs.nexusmutual.io/
- type: SDK
  url: https://sdk.nexusmutual.io/
- type: BugBounty
  url: https://immunefi.com/bounty/nexusmutual/
- type: Security
  url: https://docs.nexusmutual.io/resources/audits-and-security/
- type: DataAnalytics
  url: https://dune.com/nexus_mutual
- type: Application
  url: https://app.nexusmutual.io/
maintainers:
- FN: Collective Risk Services CIC
  url: https://nexusmutual.io
  adr: 71-75 Shelton Street, Covent Garden, London, United Kingdom, WC2H 9JQ