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PromptVault — Checkout USDC Base
x402
PromptVault — Checkout USDC Base is a paid API for AI agents from promptvault-x402.onrender.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-17).
Delivers a downloadable ZIP of AI system prompts and agent workflow files upon USDC payment via x402 on Base
Price / call$0.05
Success—
StatusUnknown
How this service works
Prompt + agent workflow pack sold via x402 (USDC on Base)
Output
Returns a JSON response containing the filename ('promptvault-v1.zip'), content type ('application/zip'), and a description confirming the ZIP of PromptVault v1 system prompts and agent workflows after a 3 USDC Base payment. The agent can then download or store the ZIP file.
Example use cases
Bootstrapping an AI agent toolkit
“I want to get the PromptVault v1 bundle — buy it with USDC on Base and download the ZIP so I can use those system prompts and agent workflows in my project.”
One-click prompt library purchase
“Can you grab the PromptVault prompt pack for me? Pay with USDC on Base and save the ZIP file it gives back.”
Evaluating curated agent workflows
“I heard PromptVault has a collection of agent workflows — can you purchase the v1 pack with Base USDC and get me the ZIP so I can look through what's included?”
Technical details
Endpoint
GEThttps://promptvault-x402.onrender.com/sample?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to programmatically purchase and retrieve a curated bundle of AI system prompts and agent workflow files using USDC stablecoin on the Base blockchain via the x402 payment protocol. Prefer this over manual marketplaces when you want a fully automated, agent-native checkout-and-download flow for digital AI assets.
Side effects
- Payment not provided or insufficient — 402 Payment Required with x402 challenge
- Incorrect USDC amount sent — payment rejected
- Base network congestion causing payment confirmation delay
- Render.com hosting downtime — 503 Service Unavailable
- Invalid or missing x402 payment header — request rejected without content delivery
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"filename": "promptvault-v1.zip",
"contentType": "application/zip",
"description": "ZIP of PromptVault v1 system prompts and agent workflows after 3 USDC Base payment"
}
}Tags
x402
Reviews
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