# Nansen

**Canonical:** https://apis.io/providers/nansen/  
**Website:** https://www.nansen.ai/  
**APIs profiled:** 2

Nansen is an onchain analytics platform with wallet labeling, smart-money tracking, token screener, portfolio, prediction markets, and AI Agent endpoints across 30+ chains. The Nansen API exposes REST endpoints under api.nansen.ai with Smart Money, Profiler, Token Screener, Portfolio, Points, Hyperliquid, Agent, and Prediction Markets categories.

## Kin Score — 28.1 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 28.1).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 47.6 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 33.3 |
| Commercial Clarity | 13.2 |
| Access Clarity | 13.2 |

Regulatory layer — **Payments**: 18.8 (matched via tags).

## Agent readiness — 22.9 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | na |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | na |
| Error Semantics | no |
| OpenAPI Examples | no |
| 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 |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (2)

- **Nansen REST API** — REST API surfacing Nansen's on-chain intelligence: smart-money flows, profiler (wallet labels and balances), token screener, portfolio, points, Hyperliquid analytics, prediction...
- **Nansen Smart Money API** — Smart-money wallet flows and behavior.

## Agentic access (1)

- **Nansen Agentic Access** — 6 operations

## Security (2)

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

## Plans (1)

- **Nansen Plans Pricing**

## Tags

Web3, Crypto, Onchain, Wallet Labels, Smart Money, Analytics, Multi-Chain

---

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