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POST
Wallet - First Tx Funded

Earliest funding transaction for wallets.

  • Maximum number of wallets per request is 50.
  • token_address is optional; pass it when you want the first funding transaction for a specific token instead of the wallet’s earliest funding event overall.
  • This endpoint helps attribute where a wallet was first funded from.
  • Batch CU is calculated as ceil(40 * wallet_count^0.8).
  • Find the earliest funding source for a wallet.
  • Trace wallet provenance in fraud, sybil, or attribution investigations.
  • Enrich whale, smart-money, or insider wallet research with first-funding context.
  • Set x-chain=solana.
  • Send up to 50 wallet addresses in the POST body.
  • Optionally include token_address when funding provenance should be scoped to one token.
  • Use this endpoint after identifying a wallet cohort worth investigating, not as a first-pass screen.
  • Keep wallet batches focused so attribution review remains manageable.
  • Solana only.

Authorizations

X-API-KEY
string
header
required

API key for authentication

Headers

x-chain
enum<string>
default:solana

Solana network only.

Available options:
solana

Body

application/json
wallets
string[]
required
Example:
token_address
string

Token address used to identify the first transaction that funded each wallet with the specified token.

Example:

"So11111111111111111111111111111111111111112"

Response

JSON object containing a wallet token balance

success
boolean
required

Whether the request succeeded.

data
object
required

Map keyed by wallet address to the first-funding transaction details.