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x402Factory.ai Base Send Payment Schema Builder
x402
x402Factory.ai Base Send Payment Schema Builder is a paid API for AI agents from x402factory.ai, paid per call via x402, $1/call, status unknown (last checked 2026-09-15).
Builds an x402-compatible ERC-20 token payment schema on Base for sending tokens to a specified wallet address
Price / call$1
Success—
StatusUnknown
How this service works
Base send endpoint discovery. Example quote uses 1.0 USDC (1,000,000 atomics) paid to the server address for documentation and x402scan registration. For real sends, provide receiver and amountAtomic (and optionally a token contract) so the payment schema targets your chosen receiver and token directly. On Base there is geen ATA-concept; elke 0x wallet kan tokens ontvangen zolang het een geldig adres is en het tokencontract een standaard transfer ondersteunt.
Output
Returns a JSON object with ok=true, the ERC-20 token contract used, the Base network identifier, the receiver address, the amount in atomics, the payer wallet that paid the x402 fee, the payment transaction hash, and a fully constructed x402-compatible paymentSchema object that agents or wallets can use to execute the token transfer to the chosen receiver.
Example use cases
Example prompt
“Build me an x402 payment schema to send 500000 atomics of USDC (that's 0.5 USDC) to wallet 0xAbC1234567890abcdef1234567890abcdef123456 on Base.”
Technical details
Endpoint
POSThttps://x402factory.ai/base/sendWhen to prefer
Use this endpoint when you need to programmatically generate an x402-compatible payment schema to send ERC-20 tokens (defaulting to Base USDC) to any valid 0x wallet on the Base network. Prefer it over manual schema construction when building agentic payment flows that need a ready-to-use schema object, or when you want to target a custom ERC-20 token by providing its contract address. Not suitable for Solana transfers or non-Base EVM chains.
Side effects
- Invalid or malformed receiver address (non-0x or wrong length) — returns error
- Missing required fields receiver or amountAtomic — returns validation error
- Invalid token contract address format — returns error
- amountAtomic is zero or negative — returns error
- x402 payment not settled or facilitator unavailable — endpoint not unlocked
- Unsupported token contract on Base network — schema generation may fail
Input
{
"receiver": "0x1234567890123456789012345678901234567890",
"amountAtomic": "500000"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| token | string | Optional ERC-20 token contract address (0x...). When omitted, the endpoint uses BASE_USDC for the current BASE_NETWORK. |
| receiverrequired | string | Base/EVM 0x wallet address that should receive the tokens. |
| amountAtomicrequired | string | Amount in token smallest units (atomics), as a positive integer string. For Base USDC with 6 decimals, 0.001 USDC = 1000 atomics. You may also provide this field as 'amount' for compatibility. |
Output
{
"ok": true,
"token": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"action": "build_send_schema",
"network": "base",
"receiver": "0x1234567890123456789012345678901234567890",
"amountAtomic": "500000",
"payer_wallet": "0x9cc42f3d9245b867acccd630b43f906c1665b176",
"payment_txid": "0xe411e05e3796d2ba85c965d4ea9db34ea178792ffe2c90c66419c81ca6ff939a",
"paymentSchema": {
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0x1234567890123456789012345678901234567890",
"scheme": "exact",
"network": "base",
"resource": "base:send:0x1234567890123456789012345678901234567890:0x833589fcd6edb6e08f4c7c32d4f71b54bda02913:500000",
"description": "Send 500000 token atomics to 0x1234567890123456789012345678901234567890 on base for token 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913. For Base USDC with 6 decimals, 1000 atomics = 0.001 USDC.",
"maxAmountRequired": "500000",
"maxTimeoutSeconds": 60
}
}Schema · Response
{
"ok": {
"type": "boolean",
"description": "True on success."
},
"token": {
"type": "string",
"description": "ERC-20 token contract used for the payment schema (either the provided token or the default BASE_USDC)."
},
"action": {
"type": "string",
"description": "Action performed. For successful calls this is 'build_send_schema'."
},
"network": {
"type": "string",
"description": "Base network for which the schema was built (BASE_NETWORK env, e.g. 'base' or 'base-sepolia')."
},
"receiver": {
"type": "string",
"description": "Receiver wallet address that should receive the funds (0x...)."
},
"amountAtomic": {
"type": "string",
"description": "Amount in token smallest units (atomics) as provided by the caller. For Base USDC with 6 decimals, 0.001 USDC is 1000 atomics."
},
"payer_wallet": {
"type": "string",
"description": "Wallet address that paid the x402 fee for using this endpoint (extracted from the settled payment)."
},
"payment_txid": {
"type": "string",
"description": "Blockchain transaction id / transaction hash for the x402 payment that unlocked this endpoint, when provided by the facilitator."
},
"paymentSchema": {
"type": "object",
"description": "x402-compatible exact payment schema that agents and wallets can use to construct a token payment to the receiver."
}
}Tags
x402
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