aid: hubble-protocol
name: Hubble Protocol
description: >-
  Hubble Protocol is a Solana-based decentralized finance (DeFi) protocol that
  lets users borrow the USDH stablecoin against multiple crypto collateral
  assets (SOL, mSOL, stSOL, ETH, BTC and more) with interest-free, fixed-fee
  loans held open for unlimited time. The protocol pairs a Stability Vault, a
  Peg Stability Module, a hybrid liquidation model, and native yield on
  deposited collateral. Developers integrate with Hubble on-chain through its
  Anchor programs (IDLs published on GitHub) and the open-source
  "@hubbleprotocol/hubble-sdk" TypeScript client, which exposes borrowing market
  states, HBB staking and USDH stability-pool data, user loans, treasury and
  circulating-supply metrics, and peg-stability swaps. Hubble published security
  audits (Arcadia, Kudelski, Smart State, Sec3) and runs a funded bug-bounty
  program; its core contributors later built Kamino Finance.
url: https://raw.githubusercontent.com/api-evangelist/hubble-protocol/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://app.hubbleprotocol.io/Hubble-URL-Banner.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- multicoin-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Crypto Web3
- DeFi
- Solana
- Stablecoin
- Lending
- Borrowing
- Blockchain
- SDK
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/hubble-protocol-domain-security.yml
- type: Website
  url: https://hubbleprotocol.io
- type: DeveloperPortal
  url: https://docs.hubbleprotocol.io
- type: Documentation
  url: https://docs.hubbleprotocol.io
- type: GettingStarted
  url: https://docs.hubbleprotocol.io/overview
- type: APIReference
  url: https://github.com/hubbleprotocol/hubble-common/blob/master/packages/hubble-sdk/README.md
- type: GitHubOrganization
  url: https://github.com/hubbleprotocol
- type: Support
  url: https://discord.gg/b4XqQbbSBk
- type: Packages
  url: packages/hubble-protocol-packages.yml
- type: SDKs
  url: packages/hubble-protocol-packages.yml
- type: LLMsTxt
  url: llms/hubble-protocol-llms.txt
- type: VulnerabilityDisclosure
  url: security/hubble-protocol-vulnerability-disclosure.yml
- type: Security
  url: security/hubble-protocol-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence