# Solana Rent-Exempt Minimum Balance Lookup

> Solana Rent-Exempt Minimum Balance Lookup is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Returns the minimum lamports (and SOL) required for a Solana account of N data bytes to be rent-exempt, cached for 1 hour.

## Facts

- Endpoint: GET https://mintintel.35-171-220-195.sslip.io/v1/sol/rent-exempt/:bytes?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/solana-rent-exempt-minimum-balance-lookup-c8b2478d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2r3k0DdoisAcNiRWDP4eH

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 solana-rent-exempt-minimum-balance-lookup-c8b2478d
```

Example prompt: How many lamports do I need to deposit to make a 165-byte Solana token account rent-exempt?

## When to prefer this

Use this endpoint when you need a quick, cheap, cached lookup of Solana rent-exempt minimums for common account sizes (165 for token accounts, 82 for mints, 0 for wallets) or any arbitrary byte size up to 10 MB. Prefer this over calling a Solana RPC node directly when you want to avoid RPC infrastructure costs or rate limits, and when 1-hour cache freshness is acceptable (rent economics rarely change).

## Known failure modes

- Invalid or non-integer bytes value returns an error response
- Bytes value exceeding 10485760 (10 MB) is out of range and rejected
- Stale cached data if Solana rent economics change within the 1-hour cache window
- Upstream RPC node unavailability causing 502/503 errors
- Payment failure via x402 protocol returns 402 Payment Required

## How this service works

Minimum lamports / SOL for a Solana account with N data bytes to be rent-exempt (getMinimumBalanceForRentExemption, cached 1 h). 165 = token account, 82 = mint, 0 = plain wallet.

## Output

Returns a JSON object containing the number of bytes queried, the minimum balance in lamports as an integer, and the equivalent SOL amount as a string. The value is sourced from Solana's getMinimumBalanceForRentExemption RPC call and cached for up to 1 hour.

## 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",
     "required": [
      "bytes"
     ],
     "properties": {
      "bytes": {
       "type": "string",
       "description": "integer data size 0..10485760"
      }
     },
     "additionalProperties": false
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "bytes",
      "lamports",
      "sol"
     ],
     "properties": {
      "sol": {
       "type": "string"
      },
      "bytes": {
       "type": "integer"
      },
      "lamports": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/solana-rent-exempt-minimum-balance-lookup-c8b2478d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mintintel.35-171-220-195.sslip.io](https://www.zero.xyz/host/mintintel.35-171-220-195.sslip.io/llms.txt)