Blowfish

aid: blowfish
name: Blowfish
description: Blowfish is a proactive web3 security platform that scans EVM and Solana transactions, EVM messages, and dApp
  domains before a user signs, returning a recommended action (NONE, WARN, or BLOCK), severity-sorted warnings, and human-readable
  transaction simulation results. Its Scan API and downloadable domain blocklist help wallets and dApps protect users from
  scams, malicious token approvals, and phishing across 10+ blockchains. Backed by Paradigm.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://raw.githubusercontent.com/blowfishxyz/blowfish-openapi-specs/HEAD/blowfish.png
url: https://raw.githubusercontent.com/api-evangelist/blowfish/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- paradigm
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Security
- Web3
- Blockchain
- Wallets
- Transaction Scanning
- Fraud Prevention
- Cryptocurrency
tags_raw:
- Company
- Security
- Web3
- Blockchain
- Wallet
- Transaction Scanning
- Fraud Prevention
- Cryptocurrency
apis:
- aid: blowfish:blowfish-download-blocklist-api
  name: Blowfish Download blocklist API
  description: Endpoints related to downloading blocklists
  humanURL: https://docs.blowfish.xyz
  baseURL: https://api.blowfish.xyz
  tags:
  - Download blocklist
  properties:
  - type: OpenAPI
    url: openapi/blowfish-download-blocklist-api-openapi.yml
- aid: blowfish:blowfish-scan-domain-api
  name: Blowfish Scan domain API
  description: Endpoints related to scanning dApp domains
  humanURL: https://docs.blowfish.xyz
  baseURL: https://api.blowfish.xyz
  tags:
  - Scan domain
  properties:
  - type: OpenAPI
    url: openapi/blowfish-scan-domain-api-openapi.yml
- aid: blowfish:blowfish-scan-message-api
  name: Blowfish Scan message API
  description: Endpoints related to scanning blockchain messages
  humanURL: https://docs.blowfish.xyz
  baseURL: https://api.blowfish.xyz
  tags:
  - Scan message
  properties:
  - type: OpenAPI
    url: openapi/blowfish-scan-message-api-openapi.yml
- aid: blowfish:blowfish-scan-transaction-api
  name: Blowfish Scan transaction API
  description: Endpoints related to scanning blockchain transactions
  humanURL: https://docs.blowfish.xyz
  baseURL: https://api.blowfish.xyz
  tags:
  - Scan transaction
  properties:
  - type: OpenAPI
    url: openapi/blowfish-scan-transaction-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/blowfish-v20230308-overlay.yaml
- type: DeveloperPortal
  url: https://docs.blowfish.xyz
- type: Documentation
  url: https://docs.blowfish.xyz
- type: APIReference
  url: https://docs.blowfish.xyz/reference
- type: GettingStarted
  url: https://docs.blowfish.xyz/docs/introduction
- type: SignUp
  url: https://portal.blowfish.xyz/
- type: Blog
  url: https://blog.blowfish.xyz
- type: GitHubOrganization
  url: https://github.com/blowfishxyz
- type: Pricing
  url: https://blowfish.xyz
- type: PrivacyPolicy
  url: https://extension.blowfish.xyz/privacy
- type: Support
  url: https://form.typeform.com/to/BHue5Hg0
- type: Authentication
  url: authentication/blowfish-authentication.yml
- type: Conventions
  url: conventions/blowfish-conventions.yml
- type: ErrorCatalog
  url: errors/blowfish-problem-types.yml
- type: Lifecycle
  url: lifecycle/blowfish-lifecycle.yml
- type: Conformance
  url: conformance/blowfish-conformance.yml
- type: Vocabulary
  url: vocabulary/blowfish-scan-vocabulary.yml
- type: DataModel
  url: data-model/blowfish-data-model.yml
- type: Packages
  url: packages/blowfish-packages.yml
- type: SDKs
  url: packages/blowfish-packages.yml
- type: Components
  url: components/blowfish-components.yml
- type: MCPServer
  url: mcp/blowfish-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/blowfish-llms.txt
- type: AgenticAccess
  url: agentic-access/blowfish-agentic-access.yml
- type: DomainSecurity
  url: security/blowfish-domain-security.yml
- type: Website
  url: https://blowfish.xyz
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence