# B20 Token Rebase Multiplier Lookup

> B20 Token Rebase Multiplier Lookup 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 rebase multiplier for a B20 Asset token on Base, indicating whether and by how much all holder balances are being scaled (diluted or inflated).

## Facts

- Endpoint: GET https://402.com.tr/api/x402/b20-rebase
- 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/b20-token-rebase-multiplier-lookup-d52c5780
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V3BtYDtksjRzMhSWuGT-D

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 b20-token-rebase-multiplier-lookup-d52c5780
```

Example prompt: Can you check the rebase multiplier for this B20 token at address 0x1234abcd... on Base and tell me if holder balances are being invisibly scaled or diluted?

## When to prefer this

Use this endpoint when you need to specifically assess whether a B20 token on Base is applying a rebase multiplier to holder balances — especially when investigating hidden dilution, inflation risk, or evaluating issuer control over token supply. Prefer this over general token risk endpoints when the specific rebase/scaling mechanism is the focus of inquiry.

## Known failure modes

- Invalid or non-B20 token address returns an error or empty result
- Non-Base chain address may not be recognized
- Token address not found on-chain returns null or 404
- Network timeout if Base RPC is congested
- Payment failure (x402) blocks the request before execution

## How this service works

Reads a B20 Asset token's rebase multiplier — the factor that scales every holder's balance. Flags whether balances are being scaled (invisible dilution/inflation the issuer controls). Stablecoin variants return no-rebase.

## Output

Returns the rebase multiplier (scaling factor) for the specified B20 token, a flag indicating whether rebasing is active, and whether the token is a stablecoin variant that does not rebase — allowing the agent to assess invisible balance inflation or dilution risk.

## 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/b20-token-rebase-multiplier-lookup-d52c5780/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)