# 402.com.tr B20 Token Info

> 402.com.tr B20 Token Info is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Fetches the complete on-chain profile of a B20 token from its precompile, including variant, name, symbol, decimals, supply, cap, transfer policies, pause states, and rebase data.

## Facts

- Endpoint: GET https://402.com.tr/api/x402/b20-info
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/402-com-tr-b20-token-info-6912e1a5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L43-j90vg31w9Wu-Zk4hq

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-b20-token-info-6912e1a5
```

Example prompt: Can you pull up the full B20 token profile for 0x1234...abcd on Base — I want to see the variant, name, symbol, total supply, supply cap, transfer policies, and whether it's paused or rebasing?

## When to prefer this

Use this endpoint when you need a comprehensive, single-call snapshot of all B20 token configuration fields — especially variant classification, supply parameters, transfer policies, and pause/rebase state. Prefer this over general ERC-20 metadata tools when the token is specifically a B20 on Base and you need B20-specific fields like transfer policies and rebase info. Pairs well with the b20-safety sibling endpoint for risk analysis.

## Known failure modes

- Invalid or non-B20 token address returns an error or empty result
- Non-Base token address returns no data
- Missing required 'address' query parameter returns a 400 error
- Network or RPC issues may cause timeouts
- Payment failure (x402) results in 402 response before data is returned

## How this service works

Complete B20 token profile straight from the precompile: variant (Asset/Stablecoin), name, symbol, decimals, total supply, supply cap, active transfer policies, pause states, and rebase. The data companion to b20-safety.

## Output

Returns a structured token profile including: variant (Asset or Stablecoin), token name, symbol, decimal places, current total supply, supply cap, active transfer sender/receiver policies, pause state flags, and rebase configuration — all read directly from the B20 precompile on Base.

## 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": {
      "address": {
       "type": "string",
       "description": "B20 token 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-b20-token-info-6912e1a5/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)