# 402.com.tr Deep Due Diligence (deep-dd)

> 402.com.tr Deep Due Diligence (deep-dd) is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.75/call, status unknown (last checked 2026-09-16).

Runs a full institutional-grade due diligence battery on a Base token — combining contract risk, holder concentration, liquidity depth, exit liquidity, and OFAC sanctions — then synthesizes an AI verdict with safety score, tradeability, and recommendation.

## Facts

- Endpoint: GET https://402.com.tr/api/x402/deep-dd
- Price: $0.75/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/402-com-tr-deep-due-diligence-deep-dd-940dc7f3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MkNxdxuF1-DEv880_yjoX

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 402-com-tr-deep-due-diligence-deep-dd-940dc7f3
```

Example prompt: Run a full deep due diligence on the Base token at contract address 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed — I'm thinking of putting in $5000, so check if I can actually exit that size position.

## When to prefer this

Use this endpoint when you need a single-call, comprehensive institutional-grade verdict on a Base token — especially before making a significant purchase. It outperforms calling individual security, liquidity, holder, or sanctions endpoints separately because it orchestrates all checks and uses AI synthesis to produce a unified recommendation. Prefer over sibling endpoints (individual honeypot, holder, OFAC checks) when you want the full picture in one request rather than assembling it yourself.

## Known failure modes

- Invalid or non-existent token contract address returns error
- Token not on Base chain may yield incomplete or missing data
- OFAC lookup failure may result in partial results
- Upstream data provider (DexScreener, GoPlus, Covalent, OFAC) outage causes degraded response
- Position size not provided means exit liquidity check may be skipped or generic
- Claude synthesis timeout on complex tokens

## How this service works

The premium flagship. One call runs the FULL battery — contract risk, holder concentration, liquidity depth, EXIT liquidity (can you actually sell), OFAC sanctions — and Claude synthesizes an institutional verdict: safety score, explicit buy/sell tradeability, liquidity & holder assessments, factors, risks, positives and a recommendation. The value is the orchestration + AI synthesis you can't get in one call anywhere else.

## Output

Returns an AI-synthesized institutional verdict including: an overall safety score, explicit buy/sell tradeability rating, liquidity depth assessment, holder concentration and whale risk analysis, OFAC sanctions status, key risk factors, positive factors, and a final buy/avoid recommendation — all derived from a multi-signal due diligence battery run in a single call.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "size": {
       "type": "string",
       "description": "Position size USD (for exit check)"
      },
      "address": {
       "type": "string",
       "description": "Token contract address"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/402-com-tr-deep-due-diligence-deep-dd-940dc7f3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 402.com.tr](https://www.zero.xyz/host/402.com.tr/llms.txt)