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Solana Token-2022 Extensions Lookup
x402
Solana Token-2022 Extensions Lookup is a paid API for AI agents from api.chainmarket-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).
Fetches Token-2022 (Token Extensions Program) metadata and extension flags for a given Solana mint address
Price / call$0.002
Success—
StatusUnknown
How this service works
Solana SPL mint audit from the chain: program (Token or Token-2022), authorities, supply and decimals, plus Token-2022 extensions with risk flags for permanent delegate, transfer hook, transfer fee, default frozen state and mint close. Reads the mint account only; it does not check holders or liquidity.
Output
Returns a JSON object containing the mint address, token program name (e.g. Token-2022), decimals, total supply, mint authority, freeze authority, the timestamp of the check, the source RPC URL, a list of active extension names, and a flags object with boolean and value fields for each possible extension (transferHook, permanentDelegate, mintCloseAuthority, transferFeeBasisPoints, defaultAccountStateFrozen, transferHookProgram, permanentDelegateAddress).
Example use cases
Token safety audit before DeFi trade
“Before I swap into this token, check the mint 2b1kV6DkPAnxd5ixfnxCpjxmKwqjjaYmCZfHsFu24GXo on Solana — does it have any dangerous Token-2022 flags like a permanent delegate or transfer hook that could drain my wallet?”
Transfer fee detection for arbitrage bot
“Look up the Token-2022 extensions for Solana mint EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v and tell me if there are any transfer fees configured — I need the exact basis points before routing trades through it.”
Smart contract integration verification
“I'm integrating with a new Solana token at mint So11111111111111111111111111111111111111112 — can you fetch its Token-2022 program details and tell me whether it uses mintCloseAuthority or defaultAccountStateFrozen so I know how to handle accounts properly?”
Technical details
Endpoint
GEThttps://api.chainmarket-api.workers.dev/api/crypto/solana-token-extensions?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative on-chain Token-2022 extension data directly from Solana mainnet without requiring an API key or signup. Ideal for agents performing token safety audits, DeFi routing decisions, wallet integrations, or smart contract compatibility checks where knowing exact extension flags (permanent delegate, transfer hooks, transfer fees, freeze state) is critical. Prefer over generic token metadata APIs when you specifically need Token-2022 program details rather than price or market data.
Side effects
- Invalid or malformed mint address (not valid base58 or wrong length) returns an error
- Mint address does not exist on Solana mainnet returns not-found error
- Mint uses legacy SPL Token program rather than Token-2022 — may return empty extensions
- Solana RPC node temporarily unavailable causes timeout or 5xx response
- Network issues between Cloudflare Worker and Solana mainnet may cause transient failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"mint": "2b1kV6DkPAnxd5ixfnxCpjxmKwqjjaYmCZfHsFu24GXo",
"flags": {
"transferHook": false,
"permanentDelegate": true,
"mintCloseAuthority": true,
"transferHookProgram": null,
"transferFeeBasisPoints": 0,
"permanentDelegateAddress": "2apBGMsS6ti9RyF5TwQTDswXBWskiJP2LD4cUEDqYJjk",
"defaultAccountStateFrozen": false
},
"source": "https://api.mainnet-beta.solana.com",
"supply": "730901064051690",
"program": "Token-2022",
"decimals": 6,
"checkedAt": "2026-10-23T09:35:54.443Z",
"extensions": [
"mintCloseAuthority",
"permanentDelegate"
],
"mintAuthority": "AxJkHRY3puoofyj7Pn512M1SGBgWroXMkEdNPQypkzbu",
"freezeAuthority": "2apBGMsS6ti9RyF5TwQTDswXBWskiJP2LD4cUEDqYJjk"
}
}Tags
x402
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