# Blowfish

**Canonical:** https://apis.io/providers/blowfish/  
**Website:** https://blowfish.xyz  
**APIs profiled:** 4

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.

## Kin Score — 38.4 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 38.4).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 60.8 |
| Governance | 20.5 |
| Contract Governance | 20.5 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 41.1 |
| Commercial Clarity | 22.4 |
| Access Clarity | 22.4 |

Regulatory layer — **Payments**: 29.7 (matched via tags).

## Agent readiness — 40.0 (agent-ready)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (4)

- **Blowfish Download blocklist API** — Endpoints related to downloading blocklists
- **Blowfish Scan domain API** — Endpoints related to scanning dApp domains
- **Blowfish Scan message API** — Endpoints related to scanning blockchain messages
- **Blowfish Scan transaction API** — Endpoints related to scanning blockchain transactions

## MCP servers (1)

- **Blowfish MCP Server**

## Agentic access (1)

- **Blowfish Agentic Access** — 5 operations · 5 acting

## Security (2)

- **Blowfish Authentication** — apiKey · 1 scheme
- **Blowfish Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Company, Security, Web3, Blockchain, Wallets, Transaction Scanning, Fraud Prevention, Cryptocurrency

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