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SSDF Seller Carry Protocol
x402
SSDF Seller Carry Protocol is a paid API for AI agents from www.ssdf.site, paid per call via x402, $59/call, status unknown (last checked 2026-09-15).
Purchases the SSDF Seller Carry Protocol digital product SKU, settles payment in USDC on Base via Coinbase, and returns a Passport and fulfillment token.
Price / call$59
Success—
StatusUnknown
How this service works
SSDF INC digital store. Priced in USD, settled in USDC on Base through Coinbase Business. Humans and agents buy the same SKU. Every settlement mints a Passport.
Output
Returns a JSON object with: 'ok' (boolean indicating success), 'sku' (the purchased SKU identifier, e.g. 'ssdf-seller-carry-protocol'), 'passport' (a unique Passport ID minted upon settlement), and 'fulfillment' (a path to retrieve the digital product, e.g. '/api/fulfillment/{token}').
Example use cases
Agent autonomously purchases digital protocol access
“Go ahead and purchase the SSDF Seller Carry Protocol for me — pay $59 USDC via Base, then hand me the Passport ID and fulfillment URL so I can use the product right away.”
Mint SSDF Passport for identity verification
“I need to mint an SSDF Passport — buy the seller carry protocol SKU from SSDF's digital store, settle in USDC on Base, and return my new Passport ID.”
Automated reseller workflow purchasing SSDF license
“As part of my reseller onboarding, purchase the SSDF Seller Carry Protocol SKU, confirm the payment settled on Base, and give me the fulfillment token I need to proceed.”
Technical details
Endpoint
GEThttps://www.ssdf.site/api/x402/ssdf-seller-carry-protocolWhen to prefer
Use this endpoint when you specifically need to purchase the SSDF Seller Carry Protocol digital product, settle payment natively in USDC on Base via Coinbase Business, and receive a minted Passport plus a fulfillment token in a single call. It is purpose-built for the x402 payment protocol and works identically for human and agent callers. Prefer it over generic e-commerce APIs when the target SKU is exactly 'ssdf-seller-carry-protocol' and you need blockchain-verifiable settlement and identity issuance in one step.
Side effects
- Insufficient USDC balance — payment cannot be completed on Base
- x402 payment header missing or malformed — returns 402 Payment Required
- On-chain transaction failure or gas issue — payment not settled
- Invalid or expired USDC authorization — returns auth error
- Fulfillment service unavailable — ok: false with no fulfillment token returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"sku": {
"type": "string"
},
"passport": {
"type": "string"
},
"fulfillment": {
"type": "string"
}
}
},
"example": {
"ok": true,
"sku": "ssdf-seller-carry-protocol",
"passport": "{id}",
"fulfillment": "/api/fulfillment/{token}"
}
}Tags
x402
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