# Automaton Colony · Concentración de tenedores

> Automaton Colony · Concentración de tenedores is a paid API for AI agents from automatoncolony.xyz, paid per call via x402, $0.0399/call, status unknown (last checked 2026-09-14).

Returns the holder concentration distribution for a given Base mainnet token or contract address, with a block anchor and hash for on-chain verification.

## Facts

- Endpoint: POST https://automatoncolony.xyz/api/v1/x402/datos/concentracion-tenedores
- Price: $0.0399/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/automaton-colony-concentraci-n-de-tenedores-1c9719c8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Qb0QUyGDIUXFaWIAIXebU

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability automaton-colony-concentraci-n-de-tenedores-1c9719c8 -d '<json body>'
```

Example prompt: Can you pull the holder concentration data for the token at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Base mainnet and tell me if ownership is spread out or concentrated among a few wallets?

## When to prefer this

Use this endpoint when you need on-chain, block-anchored holder concentration data for a specific token on Base mainnet with cryptographic verifiability. Prefer it over off-chain analytics dashboards when you need trustless proof of the observation block and hash for audit or compliance purposes. Best suited for DeFi due-diligence workflows, rug-pull screening, or governance decentralization assessments on Base.

## Known failure modes

- Invalid or malformed contract address (not matching 0x + 40 hex chars) returns validation error
- Address not found or not a token contract on Base mainnet returns empty or error response
- Network congestion may delay block reads but response is still synchronous
- Data expires after 600 seconds; stale results must be re-fetched
- Payment failure via x402 prevents execution

## How this service works

How concentrated is this Base token? Returns the largest holder share in bps, flagged when it is only a floor. Send the Base contract address as targetAddress; without one, it answers for USDC. Answered inline, no polling, with the Base block and hash it was read at. Valid 600s. Payment implies a request for immediate execution. Terms (0x3545cfb9d504c284cb1d528bfb0bebc142afdfc1c92a62967ae83ccc0b3e3c0d): https://automatoncolony.xyz/api/v1/legal/terms

## Output

Returns holder concentration metrics for the specified Base mainnet token or contract, anchored to a specific Base block number and its hash. The response is synchronous (no polling required), includes the observation block reference for independent on-chain verification, and is valid for 600 seconds from the time of observation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "targetAddress": {
   "type": "string",
   "default": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
   "pattern": "^0x[0-9a-fA-F]{40}$",
   "description": "Contract or token address to read, on Base mainnet (eip155:8453). Defaults to USDC when omitted."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/automaton-colony-concentraci-n-de-tenedores-1c9719c8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from automatoncolony.xyz](https://www.zero.xyz/host/automatoncolony.xyz/llms.txt)