Token Holders API

Token holder distribution -- top holders, concentration %, whale count. On-chain due diligence for agents. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "token-holders": {
      "url": "https://token-holders.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl "https://token-holders.api.klymax402.com/api/holders?address=0x0000000000000000000000000000000000dEaD"
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

Tool	Method	Path	Price	Description
token_get_holder_analysis	GET	/api/holders	$0.012	Get token holder analysis with concentration metrics
token_get_holder_analysis	POST	/api/holders	$0.012	Get token holder analysis with concentration metrics (POST variant)

token_get_holder_analysis

Use this when you need to analyze token holder distribution and concentration risk. Returns holder metrics in JSON.

Parameters

Name	Type	Required	Description
address	string	yes	Token contract address (0x...)
chain	string	no	Chain: base, ethereum (default: ethereum)

Returns

• topHolders -- array of top 10 holders with address, balance, percentage of supply
• top10Concentration -- percentage of total supply held by top 10 wallets
• whaleCount -- number of wallets holding >1% of supply
• totalHolders -- total unique holder count
• isConcentrated -- boolean flag if top 10 hold >50% supply (centralization risk)

Example response:

{"topHolders":[{"address":"0xab...cd","balance":"1250000","percent":12.5}],"top10Concentration":45.2,"whaleCount":7,"totalHolders":15420,"isConcentrated":false}

When to use: buying a token to assess centralization and whale dump risk. Essential for on-chain due diligence and token research.

Not for: token price data (use token_get_ohlcv_history), token safety (use token_check_safety), liquidity depth (use dex_analyze_orderbook_depth).

token_get_holder_analysis

Use this when you need to analyze token holder distribution and concentration risk. Returns holder metrics in JSON. POST variant of token_get_holder_analysis -- same params passed as JSON body instead of query string.

Parameters

Name	Type	Required	Description
address	string	yes	Token contract address (0x...)
chain	string	no	Chain: base, ethereum (default: ethereum)

Returns

• topHolders -- array of top 10 holders with address, balance, percentage of supply
• top10Concentration -- percentage of total supply held by top 10 wallets
• whaleCount -- number of wallets holding >1% of supply
• totalHolders -- total unique holder count
• isConcentrated -- boolean flag if top 10 hold >50% supply (centralization risk)

Example response:

{"topHolders":[{"address":"0xab...cd","balance":"1250000","percent":12.5}],"top10Concentration":45.2,"whaleCount":7,"totalHolders":15420,"isConcentrated":false}

When to use: buying a token to assess centralization and whale dump risk. Essential for on-chain due diligence and token research.

Not for: token price data (use token_get_ohlcv_history), token safety (use token_check_safety), liquidity depth (use dex_analyze_orderbook_depth).

Example agent prompts

• "Analyze token holder distribution and concentration risk"
• "Analyze token holder distribution and concentration risk"

Payment

• Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
• Network: Base L2 (eip155:8453)
• Asset: USDC
• Facilitator: Coinbase CDP (primary), PayAI (fallback)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

• Catalog: https://klymax402.com/llms.txt
• Full API reference: https://klymax402.com/llms-full.txt
• Live stats: https://klymax402.com/stats

License

MIT