UNRENT

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xyz.unrent/unrentv1.0.0 Domain verified

Reclaim overpaid rent from Solana token accounts (SIMD-0437). Non-custodial, no API key.

Crypto & Web3

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Call this server's tools from your browser. Nothing to install.

https://unrent.xyz/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

build_reclaim

Re-scans the wallet on the chain and builds the reclaim as unsigned, simulated Solana transactions (base64, versioned). They withdraw excess rent, close empty accounts and pay the service fee as the last instruction; nothing else leaves the wallet. Tokens are only burned for accounts listed in `burn`. The wallet's owner signs every transaction unchanged (the fee payer is the wallet, compute budget instructions may be added) and passes them to submit_reclaim within about 30 seconds, before the blockhash expires. Do not send them yourself.

walletstring, required

Solana wallet address (base58).

refstring

Optional UNRENT referral code. The referrer gets a share of the service fee; the wallet pays the same.

burnarray

Token accounts to burn and close (from the scan's burn.candidates). Only when the wallet owner explicitly asked for it.

accountsarray

Only these account addresses (from a scan). Default: everything reclaimable.

burnMaxUsdnumber

Highest USD value per account that may be burned (capped by burn.cleanupMaxUsd). Dust is burned regardless.

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

I understand, run it anyway

Tools (4)

build_reclaim

Argument	Type	Description
ref	string	Optional UNRENT referral code. The referrer gets a share of the service fee; the wallet pays the same.
burn	array	Token accounts to burn and close (from the scan's burn.candidates). Only when the wallet owner explicitly asked for it.
wallet*	string	Solana wallet address (base58).
accounts	array	Only these account addresses (from a scan). Default: everything reclaimable.
burnMaxUsd	number	Highest USD value per account that may be burned (capped by burn.cleanupMaxUsd). Dust is burned regardless.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "wallet"
  ],
  "properties": {
    "ref": {
      "type": "string",
      "maxLength": 32,
      "description": "Optional UNRENT referral code. The referrer gets a share of the service fee; the wallet pays the same."
    },
    "burn": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 2000,
      "description": "Token accounts to burn and close (from the scan's burn.candidates). Only when the wallet owner explicitly asked for it."
    },
    "wallet": {
      "type": "string",
      "description": "Solana wallet address (base58)."
    },
    "accounts": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 2000,
      "description": "Only these account addresses (from a scan). Default: everything reclaimable."
    },
    "burnMaxUsd": {
      "type": "number",
      "maximum": 1000,
      "minimum": 0,
      "description": "Highest USD value per account that may be burned (capped by burn.cleanupMaxUsd). Dust is burned regardless."
    }
  }
}

get_rent_status

Where Solana's rent reduction (SIMD-0437) stands: the live lamports_per_byte, which of the five steps are live, when the next is expected, and whether a step is already queued on chain (it then activates at the next epoch boundary). Older accounts keep their higher deposit until it is withdrawn; each step makes more SOL reclaimable.

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {}
}

scan_wallet

Reads the token accounts and mints of a Solana wallet and returns the SOL that can be reclaimed now: excess rent (WithdrawExcessLamports, accounts stay open), empty token accounts (CloseAccount) and mint excess, the UNRENT service fee, the net amount, a forecast for the remaining rent steps, and tokens that may optionally be burned and closed (dust). Read-only, needs no signature. Amounts are in SOL. Also returns signUrl: a link to finish the reclaim on unrent.xyz with a browser wallet (Phantom, Solflare, Backpack…), for when you cannot sign for the wallet yourself.

read-only

Argument	Type	Description
ref	string	Optional UNRENT referral code. The referrer gets a share of the service fee; the wallet pays the same.
wallet*	string	Solana wallet address (base58).

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "wallet"
  ],
  "properties": {
    "ref": {
      "type": "string",
      "maxLength": 32,
      "description": "Optional UNRENT referral code. The referrer gets a share of the service fee; the wallet pays the same."
    },
    "wallet": {
      "type": "string",
      "description": "Solana wallet address (base58)."
    }
  }
}

submit_reclaim

Checks the signed transactions against the ones build_reclaim made (same instructions, same fee, signed by the wallet) and sends them to Solana. Returns the signature and status of every transaction. A claim can be submitted once; after an expired blockhash, build again.

destructive

Argument	Type	Description
signed*	array	The signed transactions, base64, in the order the build returned them.
claimId*	string	claimId from the build.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "claimId",
    "signed"
  ],
  "properties": {
    "signed": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 4000
      },
      "maxItems": 100,
      "minItems": 1,
      "description": "The signed transactions, base64, in the order the build returned them."
    },
    "claimId": {
      "type": "string",
      "maxLength": 32,
      "minLength": 10,
      "description": "claimId from the build."
    }
  }
}