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 supplytop10Concentration-- percentage of total supply held by top 10 walletswhaleCount-- number of wallets holding >1% of supplytotalHolders-- total unique holder countisConcentrated-- 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 supplytop10Concentration-- percentage of total supply held by top 10 walletswhaleCount-- number of wallets holding >1% of supplytotalHolders-- total unique holder countisConcentrated-- 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