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nosub.club Walrus Decentralized File Storage
x402
nosub.club Walrus Decentralized File Storage is a paid API for AI agents from store.nosub.club, paid per call via x402, $0.04/call, status down (last checked 2026-09-15).
Stores text or binary files on the Walrus decentralized network for a specified duration, returning a blob ID and aggregator URL for retrieval
Price / call$0.04
Success—
StatusDown
How this service works
Store and share files on Walrus decentralized network, pay via x402
Output
Returns a JSON object containing a blobId (unique identifier for the stored blob), an expiresAt timestamp indicating when storage expires, an aggregatorUrl for retrieving the file from the Walrus network, and a storageObjectId referencing the on-chain storage object.
Example use cases
Example prompt
“Upload this JSON text to the Walrus decentralized network and keep it stored for 30 days — the content is '{"hello":"world"}' with content type application/json and a max size of 512 bytes.”
Technical details
Endpoint
POSThttps://store.nosub.club/v1/files/publicWhen to prefer
Choose this endpoint when you need decentralized, censorship-resistant file storage without relying on AWS S3, GCP, or IPFS pinning services. Ideal for web3 applications, permanent or time-bounded public file hosting, or any scenario where you want a Walrus blob ID and aggregator URL as output. Prefer over centralized alternatives when trustless storage and on-chain provenance matter.
Side effects
- Payment not received or insufficient USDC — request rejected before storage
- Content exceeds declared maxSizeBytes — upload rejected
- Invalid base64 encoding in contentBase64 — parse error
- Unsupported or missing contentType — MIME type error
- Walrus network unavailable or congested — storage failure
- duration value too short or out of range — validation error
- Both contentText and contentBase64 omitted — no content to store
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| duration | integer | Storage duration in days. |
| contentText | string | UTF-8 text content to store. |
| contentType | string | MIME type for the uploaded content. |
| maxSizeBytes | integer | Declared maximum byte size for a paid upload session. |
| contentBase64 | string | Base64-encoded file content. |
Output
Schema · Response
{
"type": "json",
"example": {
"blobId": "0xexampleblob",
"expiresAt": "2026-05-28T00:00:00.000Z",
"aggregatorUrl": "https://aggregator.example/v1/blobs/0xexampleblob",
"storageObjectId": "0xexamplestorageobject"
}
}Tags
x402
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