x402 List

x402 Protocol Service Directory

●

StableUpload

AI

Paid file and static site hosting for agents. Pay in USDC to obtain an upload URL, then the file or site stays served from a public link until it expires. Tiered pricing, from 0.005 to 2 dollars.

Pay from $2.00 in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

UPTIME 24H 100% │ 7D 100% │ 30D 100%
BASE URL https://stableupload.dev │ ENDPOINTS 2 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-07-20 │ MONITORED SINCE 2026-07-20

ASSESSMENT

updated 59m ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 100%
uptime 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
639ms
avg response
354ms
total checks
70
compliance A (11/11)

11 of 11 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $2.00 (p92 in AI)
price (min)
$2.00
category percentile (min)
p92 in AI
endpoints / prices
2 / 1
model
flat
stability
100%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

traction $15.36 30d · 110 buyers
volume 30d
$15.36
buyers 30d
110
settlements 30d
1,311
last settlement
2026-07-21
top buyer share
33% of 30d volume
trend 7d vs 30d
0.41x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

Provides pay-per-upload file hosting with static site deployment capabilities

category
file-hosting
in
body
file-hostingstatic-siteuploadstorage

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET
POST /api/site $2.00 Base/Solana USDC
POST /api/upload $2.00 Base/Solana USDC
2 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /api/site returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i -X POST 'https://stableupload.dev/api/site'
// 402 response (captured by monitor) · 2 payloads · click to expand 
[
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x06dFF3c8380b5D1799874adA903fc3422882FD6f",
        "amount": "2000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
        },
        "payTo": "95xcrFtRVn2fkoAKiCUKxPpTc1GN8MTyonVwLFfJfzux",
        "amount": "2000000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://stableupload.dev/api/site",
      "tags": [
        "Site"
      ],
      "method": "POST",
      "mimeType": "application/json",
      "description": "Buy a site upload slot. Upload a zip file, then activate to extract and serve as a static site.",
      "serviceName": "StableUpload"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "tier": "short-10mb",
              "filename": "site.zip"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "maxSize": 10485760,
              "postUrl": "https://stableupload-prod.s3.us-east-1.amazonaws.com/",
              "uploadId": "bs94s5b4ca",
              "expiresAt": "2026-05-02T16:00:00.000Z",
              "uploadUrl": "https://stableupload-prod.s3.us-east-1.amazonaws.com/",
              "postFields": {
                "key": "uploads/bs94s5b4ca/site.zip",
                "policy": "base64-policy",
                "x-amz-date": "20260425T160000Z",
                "Content-Type": "application/zip",
                "x-amz-algorithm": "AWS4-HMAC-SHA256",
                "x-amz-signature": "hex-signature",
                "x-amz-credential": "AKIAEXAMPLE/20260425/us-east-1/s3/aws4_request"
              },
              "curlExample": "curl -X POST \"https://stableupload-prod.s3.us-east-1.amazonaws.com/\" -F \"key=uploads/bs94s5b4ca/site.zip\" -F \"Content-Type=application/zip\" -F \"x-amz-algorithm=AWS4-HMAC-SHA256\" -F \"x-amz-credential=AKIAEXAMPLE/20260425/us-east-1/s3/aws4_request\" -F \"x-amz-date=20260425T160000Z\" -F \"policy=base64-policy\" -F \"x-amz-signature=hex-signature\" -F \"[email protected];type=application/zip\"",
              "uploadMethod": "post",
              "uploadUrlExpiresAt": "2026-04-25T16:15:00.000Z"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "required": [
                    "filename",
                    "tier"
                  ],
                  "properties": {
                    "tier": {
                      "enum": [
                        "10mb",
                        "100mb",
                        "1gb",
                        "short-10mb",
                        "short-100mb",
                        "short-1gb"
                      ],
                      "type": "string",
                      "description": "Site tier. Default 6-month tiers: 10mb ($0.02), 100mb ($0.20), 1gb ($2.00). Short-term 7-day workflow site tiers: short-10mb ($0.005), short-100mb ($0.02), short-1gb ($0.10). short-5gb is not supported for sites."
                    },
                    "filename": {
                      "type": "string",
                      "maxLength": 512,
                      "minLength": 1,
                      "description": "Name of the zip file to upload"
                    },
                    "policyTtlSeconds": {
                      "type": "integer",
                      "maximum": 86400,
                      "minimum": 60,
                      "description": "Optional upload URL/form expiration in seconds, 60-86400. Use longer TTLs only when reserving an output slot for a downstream service."
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "required": [
                    "uploadId",
                    "uploadUrl",
                    "uploadMethod",
                    "uploadUrlExpiresAt",
                    "expiresAt",
                    "maxSize",
                    "curlExample"
                  ],
                  "properties": {
                    "txHash": {
                      "type": "string"
                    },
                    "maxSize": {
                      "type": "number"
                    },
                    "postUrl": {
                      "type": "string"
                    },
                    "uploadId": {
                      "type": "string"
                    },
                    "expiresAt": {
                      "type": "string"
                    },
                    "uploadUrl": {
                      "type": "string"
                    },
                    "postFields": {
                      "type": "object",
                      "propertyNames": {
                        "type": "string"
                      },
                      "additionalProperties": {
                        "type": "string"
                      }
                    },
                    "curlExample": {
                      "type": "string"
                    },
                    "uploadMethod": {
                      "enum": [
                        "put",
                        "post"
                      ],
                      "type": "string"
                    },
                    "uploadUrlExpiresAt": {
                      "type": "string"
                    }
                  },
                  "additionalProperties": false
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x06dFF3c8380b5D1799874adA903fc3422882FD6f",
        "amount": "2000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
        },
        "payTo": "95xcrFtRVn2fkoAKiCUKxPpTc1GN8MTyonVwLFfJfzux",
        "amount": "2000000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://stableupload.dev/api/upload",
      "tags": [
        "Upload"
      ],
      "method": "POST",
      "mimeType": "application/json",
      "description": "Buy an upload slot. Agent uploads file via returned URL.",
      "serviceName": "StableUpload"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "tier": "short-10mb",
              "filename": "quick-note.txt",
              "contentType": "text/plain"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "maxSize": 10485760,
              "postUrl": "https://stableupload-prod.s3.us-east-1.amazonaws.com/",
              "uploadId": "2s42wjsk3a",
              "expiresAt": "2026-05-02T16:00:00.000Z",
              "publicUrl": "https://f.stableupload.dev/2s42wjsk3a/quick-note.txt",
              "uploadUrl": "https://stableupload-prod.s3.us-east-1.amazonaws.com/",
              "postFields": {
                "key": "uploads/2s42wjsk3a/quick-note.txt",
                "policy": "base64-policy",
                "x-amz-date": "20260425T160000Z",
                "Content-Type": "text/plain",
                "x-amz-algorithm": "AWS4-HMAC-SHA256",
                "x-amz-signature": "hex-signature",
                "x-amz-credential": "AKIAEXAMPLE/20260425/us-east-1/s3/aws4_request"
              },
              "curlExample": "curl -X POST \"https://stableupload-prod.s3.us-east-1.amazonaws.com/\" -F \"key=uploads/2s42wjsk3a/quick-note.txt\" -F \"Content-Type=text/plain\" -F \"x-amz-algorithm=AWS4-HMAC-SHA256\" -F \"x-amz-credential=AKIAEXAMPLE/20260425/us-east-1/s3/aws4_request\" -F \"x-amz-date=20260425T160000Z\" -F \"policy=base64-policy\" -F \"x-amz-signature=hex-signature\" -F \"[email protected];type=text/plain\"",
              "uploadMethod": "post",
              "uploadUrlExpiresAt": "2026-04-25T16:15:00.000Z"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "required": [
                    "filename",
                    "contentType",
                    "tier"
                  ],
                  "properties": {
                    "tier": {
                      "enum": [
                        "10mb",
                        "100mb",
                        "1gb",
                        "short-10mb",
                        "short-100mb",
                        "short-1gb",
                        "short-5gb"
                      ],
                      "type": "string",
                      "description": "Upload tier. Default 6-month tiers: 10mb ($0.02), 100mb ($0.20), 1gb ($2.00). Short-term 7-day workflow tiers: short-10mb ($0.005), short-100mb ($0.02), short-1gb ($0.10), short-5gb ($0.50, file uploads only)."
                    },
                    "filename": {
                      "type": "string",
                      "maxLength": 512,
                      "minLength": 1,
                      "description": "Name of the file to upload"
                    },
                    "contentType": {
                      "type": "string",
                      "maxLength": 255,
                      "minLength": 1,
                      "description": "MIME type of the file (e.g. image/png, video/mp4)"
                    },
                    "policyTtlSeconds": {
                      "type": "integer",
                      "maximum": 86400,
                      "minimum": 60,
                      "description": "Optional upload URL/form expiration in seconds, 60-86400. Use longer TTLs only when reserving an output slot for a downstream service."
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "required": [
                    "uploadId",
                    "uploadUrl",
                    "uploadMethod",
                    "uploadUrlExpiresAt",
                    "publicUrl",
                    "expiresAt",
                    "maxSize",
                    "curlExample"
                  ],
                  "properties": {
                    "txHash": {
                      "type": "string"
                    },
                    "maxSize": {
                      "type": "number"
                    },
                    "postUrl": {
                      "type": "string"
                    },
                    "uploadId": {
                      "type": "string"
                    },
                    "expiresAt": {
                      "type": "string"
                    },
                    "publicUrl": {
                      "type": "string"
                    },
                    "uploadUrl": {
                      "type": "string"
                    },
                    "postFields": {
                      "type": "object",
                      "propertyNames": {
                        "type": "string"
                      },
                      "additionalProperties": {
                        "type": "string"
                      }
                    },
                    "curlExample": {
                      "type": "string"
                    },
                    "uploadMethod": {
                      "enum": [
                        "put",
                        "post"
                      ],
                      "type": "string"
                    },
                    "uploadUrlExpiresAt": {
                      "type": "string"
                    }
                  },
                  "additionalProperties": false
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

UPTIME

07-21 · uptime 100.0% · 357ms avg07-2107-21
RESPONSE TIME
07-21 · 357ms avg07-21 · 357ms avg07-2107-21
24h UPTIME 100%
UPTIME 24H 100%
AVG RESP 367ms
TOTAL CHECKS 74

RECENT CHECKS

TIME STATUS RESP
● SLOW 718ms
● SLOW 753ms
● OK 337ms
● OK 519ms
● SLOW 702ms
● OK 250ms
● OK 431ms
● OK 308ms
● OK 177ms
● OK 384ms
● OK 418ms
● OK 275ms
● OK 449ms
● OK 257ms
● OK 244ms
● OK 200ms
● OK 224ms
● OK 398ms
18 of 74 checks

OVER TIME

All charts share the 24h window selected here. Every series is also served as JSON at /api/v1/services/stableupload/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted).

PRICE (captured 402, USD)
07-20 · $2.0007-21 · $2.00$2.0007-2007-21

Median across 2 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-20 uptime: 100.0% compliance: 100% checks07-21 uptime: 100.0% compliance: 100% checksuptimecompliance07-2007-21
VOLUME (on-chain settlement, USD)
07-20 · $0.1507-21 · $0.09peak $0.1507-2007-21
DISTINCT BUYERS
07-20 · 3 buyers07-21 · 2 buyerspeak 3 buyers07-2007-21

COMPLIANCE

11/11 checks pass · grade A
  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS

EMBED THIS BADGE

Show that StableUpload is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

StableUpload listed on x402-list
status
StableUpload uptime on x402-list
live uptime
// HTML
<a href="https://x402-list.com/services/stableupload?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/stableupload.svg" alt="StableUpload listed on x402-list" height="28">
</a>
// Markdown
[![StableUpload on x402-list](https://x402-list.com/badge/stableupload.svg)](https://x402-list.com/services/stableupload?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/stableupload?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/stableupload.svg?data=uptime" alt="StableUpload uptime on x402-list" height="28">
</a>

RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

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