Token Holders API

![MCP Server](https://token-holders.api.klymax402.com/mcp) ![x402](https://x402.org) ![License: MIT](LICENSE)

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

Token Holders API