{
 "generated": "2026-09-18",
 "provider": {
  "name": "Nansen API",
  "slug": "nansen-api",
  "category": "data_apis",
  "category_label": "Data & indexing",
  "url": "https://www.nansen.ai/api",
  "pricing_url": "https://www.nansen.ai/api",
  "capabilities": [
   "labels/smart-money analytics",
   "token/portfolio APIs (balances, PnL, holders)",
   "price/market screener",
   "MCP + CLI",
   "x402 pay-per-call"
  ],
  "chains_note": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
  "chain_families": [
   "svm",
   "evm",
   "other"
  ],
  "network_support": {
   "families": [
    "svm",
    "evm",
    "other"
   ],
   "claims": [
    {
     "target": {
      "kind": "family",
      "id": "svm"
     },
     "status": "supported",
     "evidence": {
      "text": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    },
    {
     "target": {
      "kind": "family",
      "id": "evm"
     },
     "status": "supported",
     "evidence": {
      "text": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    },
    {
     "target": {
      "kind": "family",
      "id": "other"
     },
     "status": "supported",
     "evidence": {
      "text": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    },
    {
     "target": {
      "kind": "network",
      "id": "base-mainnet",
      "name": "Base",
      "family": "evm",
      "chain_id": 8453
     },
     "status": "supported",
     "evidence": {
      "text": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    },
    {
     "target": {
      "kind": "ecosystem",
      "id": "hyperliquid",
      "name": "Hyperliquid",
      "family": "evm",
      "chain_id": 999
     },
     "status": "supported",
     "evidence": {
      "text": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    },
    {
     "target": {
      "kind": "network",
      "id": "solana-mainnet",
      "name": "Solana",
      "family": "svm"
     },
     "status": "supported",
     "evidence": {
      "text": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    },
    {
     "target": {
      "kind": "ecosystem",
      "id": "avalanche",
      "name": "Avalanche ecosystem",
      "family": "evm"
     },
     "status": "supported",
     "evidence": {
      "text": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    },
    {
     "target": {
      "kind": "network",
      "id": "avalanche-c-chain",
      "name": "Avalanche C-Chain",
      "family": "evm",
      "chain_id": 43114
     },
     "status": "supported",
     "evidence": {
      "text": "C-Chain: yes. Avalanche L1s: no. Robinhood: yes. Solana: yes.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    },
    {
     "target": {
      "kind": "ecosystem",
      "id": "avalanche-l1",
      "name": "Avalanche L1s",
      "family": "evm.avalanche-l1"
     },
     "status": "not_supported",
     "evidence": {
      "text": "C-Chain: yes. Avalanche L1s: no. Robinhood: yes. Solana: yes.",
      "source_refs": [],
      "verified": true,
      "last_verified": "2026-09-17"
     }
    }
   ],
   "raw": {
    "chains_note": "38 chains per docs llms-full.txt (site says 25+). Avalanche and Solana listed; Robinhood, Base, Hyperliquid highlighted on site.",
    "avalanche_support": "C-Chain: yes. Avalanche L1s: no. Robinhood: yes. Solana: yes."
   }
  },
  "capability_classes": [
   "query.sql",
   "api.portfolio",
   "api.price",
   "agent.mcp"
  ],
  "capability_support": [
   {
    "raw": "labels/smart-money analytics",
    "class_ids": [
     "query.sql"
    ],
    "status": "reported",
    "scope": "provider",
    "source_refs": [],
    "verified": true,
    "last_verified": "2026-09-17"
   },
   {
    "raw": "token/portfolio APIs (balances, PnL, holders)",
    "class_ids": [
     "api.portfolio"
    ],
    "status": "reported",
    "scope": "provider",
    "source_refs": [],
    "verified": true,
    "last_verified": "2026-09-17"
   },
   {
    "raw": "price/market screener",
    "class_ids": [
     "api.price"
    ],
    "status": "reported",
    "scope": "provider",
    "source_refs": [],
    "verified": true,
    "last_verified": "2026-09-17"
   },
   {
    "raw": "MCP + CLI",
    "class_ids": [
     "agent.mcp"
    ],
    "status": "reported",
    "scope": "provider",
    "source_refs": [],
    "verified": true,
    "last_verified": "2026-09-17"
   },
   {
    "raw": "x402 pay-per-call",
    "class_ids": [],
    "status": "reported",
    "scope": "provider",
    "source_refs": [],
    "verified": true,
    "last_verified": "2026-09-17"
   }
  ],
  "freshness": {
   "band": "fresh",
   "age_days": 1,
   "last_verified": "2026-09-17",
   "as_of": "2026-09-18"
  },
  "status": "active",
  "promo_state": "active",
  "avalanche_support": "C-Chain: yes. Avalanche L1s: no. Robinhood: yes. Solana: yes.",
  "avalanche_flag": "c-chain",
  "access_model_raw": "free-with-key | x402 pay-per-call (no key)",
  "access_model": "free-with-key",
  "free_tier": "Free: 100 trial credits + 10 credits/day refill; all Pro endpoints accessible; 15 req/s, 300 req/min.",
  "rate_limit": "Free 15 rps / 300 rpm; Pro 75 rps / 1,500 rpm",
  "paid_from": "Pro $49/mo annual or $69/mo monthly (one-time 2,000 credits, monthly top-up back to 2,000); x402 pay-per-call $0.01/call basic, $0.05/call premium and Smart Money endpoints (USDC on Base/Solana, no API key required)",
  "pricing_unit": "credits",
  "promos": "Meridian Buildathon (Sep 14-27, 2026): 'API credit purchases get 2x credits' during the competition period; prizes 1st $10,000 USDC, honorable mentions 100,000 Nansen API credits each; no application required (create API key, make 1,000 API calls, post demo on X tagging @nansen_ai, submit form with GitHub repo). Pro also lists 'Bulk credit discounts'.",
  "notes": "Useful for labeled-address enrichment, not raw indexing.",
  "sources": [
   "https://www.nansen.ai/api",
   "https://docs.nansen.ai/llms-full.txt",
   "https://nansen.ai/campaigns/meridian-buildathon"
  ],
  "verified": true,
  "last_verified": "2026-09-17",
  "page": "/providers/nansen-api.html"
 },
 "changes": [
  {
   "date": "2026-09-17",
   "provider": "Nansen API",
   "type": "credits-program",
   "title": "Nansen Meridian Buildathon: 2x credits on every API credit purchase through Sept 27, plus 100,000-credit honorable mentions and $10K USDC first prize (no application)",
   "summary": "nansen.ai/campaigns/meridian-buildathon (linked from the API page hero): during Sept 14-27, 2026 every API credit purchase gets 2x credits. Prizes: 1st $10,000 USDC, 2nd AirPods Max + Ledger + Keychron, 3rd Sony WH-1000XM5 + Ledger, honorable mentions 100,000 Nansen API credits each. Entry: create an API key at app.nansen.ai/api, make 1,000 API calls on any endpoint, post a demo recording on X tagging @nansen_ai, submit email + X link + GitHub repo at nsn.ai/meridian-submit ('if it breaks in the recording, it doesn't qualify'). Docs now list 38 chains (Avalanche, Solana, Robinhood highlighted); Pro is $49/mo annual or $69/mo monthly; x402 pay-per-call $0.01 basic / $0.05 premium.",
   "sources": [
    "https://nansen.ai/campaigns/meridian-buildathon",
    "https://www.nansen.ai/api",
    "https://docs.nansen.ai/llms-full.txt"
   ],
   "verified": true
  }
 ]
}