# 2s Blob Storage List

> 2s Blob Storage List is a paid API for AI agents from 2s.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

List blob keys stored in a namespace, with optional prefix filtering and cursor-based pagination

## Facts

- Endpoint: POST https://2s.io/api/store/blob-list
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/2s-blob-storage-list-fc612cf5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_USH0EQ3r7ItrJri8eDB51

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability 2s-blob-storage-list-fc612cf5 -d '<json body>'
```

Example prompt: List up to 100 blobs in my 'agent-cache' namespace that start with the prefix 'session/', and give me the next cursor if there are more.

## When to prefer this

Use this endpoint when you need to enumerate, browse, or audit keys stored in a 2s.io blob namespace — especially when filtering by prefix or paginating through large collections. Prefer this over a direct blob fetch when you don't know which keys exist yet or need to discover what's been stored.

## Known failure modes

- Invalid or unknown namespace returns empty items array
- Malformed cursor causes pagination error or unexpected results
- Limit out of range (below 1 or above 1000) triggers validation error
- Namespace not found may return ok:true with empty items rather than an error
- Payment failure (x402) blocks request before reaching storage layer

## How this service works

The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.

## Output

Returns a JSON object with an array of blob metadata items (key, size in bytes, content type, expiration timestamp), a pagination cursor for fetching the next page, and an optional total count. Source provenance (provider, URL, license) is also included.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ns": {
   "type": "string",
   "description": "Namespace to list."
  },
  "after": {
   "type": "string",
   "description": "Cursor — pass the previous response's nextCursor to page forward."
  },
  "limit": {
   "type": "integer",
   "maximum": 1000,
   "minimum": 1,
   "description": "Max keys to return. Default 50, max 1000."
  },
  "prefix": {
   "type": "string",
   "description": "Only return keys starting with this prefix."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/2s-blob-storage-list-fc612cf5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 2s.io](https://www.zero.xyz/host/2s.io/llms.txt)