# unprice IPFS Gateway (Pay-per-request)

> unprice IPFS Gateway (Pay-per-request) is a paid API for AI agents from volkov.evgeny.m2.fvds.ru, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Fetches content from IPFS by CID and returns the text, byte size, and SHA256 hash, billed per-request via USDC on Base using the x402 protocol.

## Facts

- Endpoint: GET https://volkov.evgeny.m2.fvds.ru/pay/ipfs
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/unprice-ipfs-gateway-pay-per-request-ff7dd6af
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K5dMqfV4eOUngS2eIuNIB

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 unprice-ipfs-gateway-pay-per-request-ff7dd6af
```

Example prompt: Can you fetch the content stored at IPFS CID QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG and show me the text and its SHA256 hash?

## When to prefer this

Use this endpoint when you need to fetch and read IPFS content on a pay-per-use basis without running your own IPFS node or paying for a subscription gateway. It is especially useful for agents that need occasional, sporadic IPFS lookups billed in micro-USDC via the x402 protocol on Base, making it cost-efficient for low-volume or unpredictable workloads.

## Known failure modes

- CID not found or unpinned on the network — gateway may time out or return an error
- Invalid or malformed CID format causes a 400-level error
- Payment failure via x402 (insufficient USDC balance or incorrect payment header) blocks the request
- Large files may exceed text decoding limits or cause slow responses
- Network congestion on IPFS can cause intermittent failures or stale content

## How this service works

Tiny paid web services for agents. Pay per request with USDC on Base via x402, plus non-x402 Base USDC tx-hash checkouts for Merchant Feed Audit, Base USDC receipts, and recent wallet statements.

## Output

Returns a JSON object containing the requested CID, the decoded text content of the IPFS object, the size in bytes, and a SHA256 hash of the content for integrity verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "cid": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "cid": "QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG",
  "text": "hello",
  "bytes": 12,
  "sha256": "..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/unprice-ipfs-gateway-pay-per-request-ff7dd6af/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from volkov.evgeny.m2.fvds.ru](https://www.zero.xyz/host/volkov.evgeny.m2.fvds.ru/llms.txt)