x402 List

x402 Protocol Service Directory

●

Skim

Content

Skim is the x402-native clean reader for AI agents: send a URL, get back agent-ready markdown plus structured metadata in milliseconds. Pay per call in USDC over HTTP 402 - no signup, no API keys. In a production benchmark - 15 real paid calls to skim402.com over the public internet, each verifiable on-chain - Skim ran 2.3x faster than Firecrawl at the median. Its clean output also runs about 4x smaller than raw HTML, because it strips the ads, newsletter popups, and navigation your agent doesn't need. Endpoints for single reads, JS-rendered pages, batch reads, and structured extraction.

Pay from $0.002 to $0.02 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-05-17 · $13.27 all-time · settled via coinbase

BASE URL https://skim402.com │ WEBSITE https://skim402.com │ ENDPOINTS 4 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-06-12 │ MONITORED SINCE 2026-06-12

ASSESSMENT

updated 1h 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
520ms
avg response
202ms
total checks
2,740
compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.002 to $0.02 (p18 in Content)
price (min)
$0.002
price (max)
$0.02
category percentile (min)
p18 in Content
category percentile (max)
p50 in Content
endpoints / prices
4 / 4
model
tiered
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.

domain age
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction $12.40 30d · 13 buyers
volume 30d
$12.40
buyers 30d
13
settlements 30d
2,381
first settlement
2026-05-17
last settlement
2026-07-28
top buyer share
28% of 30d volume
trend 7d vs 30d
0.09x the 30d daily rate
networks
eip155:8453
volume all-time
$13.27
settlements all-time
2,663
median settlement 30d
$0.002
max settlement 30d
$0.35
settled via
coinbase

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

Skim is a web content extraction service that turns URLs into clean Markdown and structured metadata for AI agents.

category
web-content-extraction
in
query params
auth
none
web-scrapingcontent-extractionmarkdown-conversionmetadata-extractionai-tools

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/v2/extract $0.01 Base USDC
GET /api/v2/read $0.002 Base USDC
POST /api/v2/read/batch $0.02 Base USDC
GET /api/v2/read/js $0.005 Base USDC
4 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /api/v2/read returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://skim402.com/api/v2/read'
// 402 response (captured by monitor) · 4 payloads · click to expand 
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x63AE98f3363B346a94Fcc1CBcB621F1C2B1Fcddc",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://skim402.com/api/v2/read/batch",
      "mimeType": "application/json",
      "description": "Skim: batch reader — up to 10 URLs to agent-ready markdown in one paid call."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "POST",
            "queryParams": {
              "urls": [
                "https://example.com/article-1",
                "https://example.com/article-2"
              ]
            }
          },
          "output": {
            "type": "json",
            "example": {
              "results": [
                {
                  "ok": true,
                  "url": "https://example.com/article-1",
                  "data": {
                    "url": "https://example.com/article-1",
                    "mode": "basic",
                    "text": "Article 1\n\n...",
                    "finalUrl": "https://example.com/article-1",
                    "markdown": "# Article 1\n\n...",
                    "metadata": {
                      "title": "Article 1"
                    }
                  },
                  "error": null,
                  "cacheHit": false
                }
              ],
              "fetchedAt": "2025-01-01T00:00:00Z"
            }
          }
        },
        "schema": {
          "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": [
                    "POST"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "urls"
                  ],
                  "properties": {
                    "urls": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 10,
                      "minItems": 1,
                      "description": "Up to 10 URLs to read in parallel. Returns per-URL results; partial-success batches still settle, all-fail batches return 422 (no payment settled)."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x63AE98f3363B346a94Fcc1CBcB621F1C2B1Fcddc",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://skim402.com/api/v2/read/js",
      "mimeType": "application/json",
      "description": "Skim: JS-rendered reader — full headless browser render for SPAs and JS-gated pages."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "url": "https://example.com/spa-page"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "url": "https://example.com/spa-page",
              "mode": "js",
              "text": "SPA Article\n\nMarkdown extracted after the page's JavaScript hydrated the article body...",
              "finalUrl": "https://example.com/spa-page",
              "markdown": "# SPA Article\n\nMarkdown extracted after the page's JavaScript hydrated the article body.",
              "metadata": {
                "title": "SPA Article",
                "siteName": "Example SPA"
              }
            }
          }
        },
        "schema": {
          "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",
                  "required": [
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "The URL of a JavaScript-rendered page (SPA, JS-gated, lazy-loaded). The server performs a full headless browser render before extracting the article."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x63AE98f3363B346a94Fcc1CBcB621F1C2B1Fcddc",
        "amount": "2000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://skim402.com/api/v2/read",
      "mimeType": "application/json",
      "description": "Skim: clean reader — URL to agent-ready markdown + structured metadata."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "url": "https://example.com/article"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "url": "https://example.com/article",
              "mode": "basic",
              "text": "Example Article\n\nClean markdown extracted from the page...",
              "finalUrl": "https://example.com/article",
              "markdown": "# Example Article\n\nClean markdown extracted from the page, with headings, lists, and links preserved.",
              "metadata": {
                "lang": "en",
                "title": "Example Article",
                "siteName": "Example Site",
                "publishedAt": "2025-01-01T00:00:00Z"
              }
            }
          }
        },
        "schema": {
          "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",
                  "required": [
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "The URL of the web page to clean and convert to markdown."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x63AE98f3363B346a94Fcc1CBcB621F1C2B1Fcddc",
        "amount": "15000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://skim402.com/api/v2/extract",
      "mimeType": "application/json",
      "description": "Skim: structured extraction — URL + JSON Schema to schema-conforming JSON via LLM."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "POST",
            "queryParams": {
              "url": "https://example.com/product-page",
              "schema": {
                "type": "object",
                "required": [
                  "name",
                  "price"
                ],
                "properties": {
                  "name": {
                    "type": "string"
                  },
                  "price": {
                    "type": "number"
                  }
                }
              }
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": {
                "name": "Example Product",
                "price": 29.99
              },
              "source": {
                "url": "https://example.com/product-page",
                "finalUrl": "https://example.com/product-page",
                "markdownBytes": 1234,
                "readerCacheHit": false
              }
            }
          }
        },
        "schema": {
          "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": [
                    "POST"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "url",
                    "schema"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "The URL to extract structured data from."
                    },
                    "schema": {
                      "type": "object",
                      "description": "JSON Schema describing the desired output shape. The server returns JSON conforming to this schema, extracted from the page via LLM."
                    },
                    "instructions": {
                      "type": "string",
                      "description": "Optional natural-language guidance for the extractor (e.g. 'prefer USD; ignore sale crossouts')."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts share the 30d window selected here. Every series is also served as JSON at /api/v1/services/skim/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). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
06-29 · uptime 100.0% · 206ms avg06-30 · uptime 100.0% · 143ms avg07-01 · uptime 100.0% · 172ms avg07-02 · uptime 100.0% · 229ms avg07-03 · uptime 100.0% · 225ms avg07-04 · uptime 100.0% · 193ms avg07-05 · uptime 100.0% · 192ms avg07-06 · uptime 100.0% · 214ms avg07-07 · uptime 100.0% · 266ms avg07-08 · uptime 100.0% · 176ms avg07-09 · uptime 100.0% · 215ms avg07-10 · uptime 100.0% · 215ms avg07-11 · uptime 100.0% · 202ms avg07-12 · uptime 100.0% · 145ms avg07-13 · uptime 100.0% · 312ms avg07-14 · uptime 100.0% · 282ms avg07-15 · uptime 100.0% · 154ms avg07-16 · uptime 100.0% · 203ms avg07-17 · uptime 100.0% · 151ms avg07-18 · uptime 100.0% · 176ms avg07-19 · uptime 100.0% · 181ms avg07-20 · uptime 100.0% · 183ms avg07-21 · uptime 100.0% · 226ms avg07-22 · uptime 100.0% · 162ms avg07-23 · uptime 100.0% · 156ms avg07-24 · uptime 100.0% · 185ms avg07-25 · uptime 100.0% · 196ms avg07-26 · uptime 100.0% · 227ms avg07-27 · uptime 100.0% · 215ms avg07-28 · uptime 100.0% · 250ms avg06-2907-28
30d UPTIME 100%
RESPONSE TIME
06-29 · 206ms avg06-29 · 206ms avg06-30 · 143ms avg06-30 · 143ms avg07-01 · 172ms avg07-01 · 172ms avg07-02 · 229ms avg07-02 · 229ms avg07-03 · 225ms avg07-03 · 225ms avg07-04 · 193ms avg07-04 · 193ms avg07-05 · 192ms avg07-05 · 192ms avg07-06 · 214ms avg07-06 · 214ms avg07-07 · 266ms avg07-07 · 266ms avg07-08 · 176ms avg07-08 · 176ms avg07-09 · 215ms avg07-09 · 215ms avg07-10 · 215ms avg07-10 · 215ms avg07-11 · 202ms avg07-11 · 202ms avg07-12 · 145ms avg07-12 · 145ms avg07-13 · 312ms avg07-13 · 312ms avg07-14 · 282ms avg07-14 · 282ms avg07-15 · 154ms avg07-15 · 154ms avg07-16 · 203ms avg07-16 · 203ms avg07-17 · 151ms avg07-17 · 151ms avg07-18 · 176ms avg07-18 · 176ms avg07-19 · 181ms avg07-19 · 181ms avg07-20 · 183ms avg07-20 · 183ms avg07-21 · 226ms avg07-21 · 226ms avg07-22 · 162ms avg07-22 · 162ms avg07-23 · 156ms avg07-23 · 156ms avg07-24 · 185ms avg07-24 · 185ms avg07-25 · 196ms avg07-25 · 196ms avg07-26 · 227ms avg07-26 · 227ms avg07-27 · 215ms avg07-27 · 215ms avg07-28 · 250ms avg07-28 · 250ms avg06-2907-28
AVG RESP 202ms
PRICE (captured 402, USD)
06-28 · $0.0107-28 · $0.01$0.0106-2807-28

Median across 4 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-13 uptime: 100.0% compliance: 92% checks07-14 uptime: 100.0% compliance: 92% checks07-15 uptime: 100.0% compliance: 92% checks07-16 uptime: 100.0% compliance: 92% checks07-17 uptime: 100.0% compliance: 100% checks07-18 uptime: 100.0% compliance: 100% checks07-19 uptime: 100.0% compliance: 100% checks07-20 uptime: 100.0% compliance: 100% checks07-21 uptime: 100.0% compliance: 100% checks07-22 uptime: 100.0% compliance: 100% checks07-23 uptime: 100.0% compliance: 100% checks07-24 uptime: 100.0% compliance: 100% checks07-25 uptime: 100.0% compliance: 100% checks07-26 uptime: 100.0% compliance: 100% checks07-27 uptime: 100.0% compliance: 100% checks07-28 uptime: 100.0% compliance: 100% checksuptimecompliance07-1307-28
VOLUME (on-chain settlement, USD)
06-29 · $0.0206-30 · $0.0307-02 · $0.2007-03 · $207-05 · $0.0107-06 · $0.0007-07 · $0.0107-08 · $0.0207-09 · $0.0107-10 · $0.0107-11 · $0.0107-12 · $0.0107-13 · $207-14 · $307-15 · $107-16 · $0.0307-17 · $0.0107-18 · $0.0407-19 · $207-20 · $107-21 · $0.1307-22 · $0.0407-23 · $0.0307-24 · $0.0407-25 · $0.0407-26 · $0.0407-27 · $0.0407-28 · $0.03peak $306-2907-28
DISTINCT BUYERS
06-29 · 2 buyers06-30 · 2 buyers07-02 · 2 buyers07-03 · 2 buyers07-05 · 1 buyer07-06 · 1 buyer07-07 · 2 buyers07-08 · 3 buyers07-09 · 2 buyers07-10 · 2 buyers07-11 · 2 buyers07-12 · 2 buyers07-13 · 4 buyers07-14 · 4 buyers07-15 · 3 buyers07-16 · 5 buyers07-17 · 2 buyers07-18 · 5 buyers07-19 · 3 buyers07-20 · 4 buyers07-21 · 5 buyers07-22 · 3 buyers07-23 · 2 buyers07-24 · 3 buyers07-25 · 3 buyers07-26 · 3 buyers07-27 · 4 buyers07-28 · 2 buyerspeak 5 buyers06-2907-28

COMPLIANCE

14/14 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
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) · click to expand
TIME STATUS RESP
● SLOW 317ms
● SLOW 308ms
● SLOW 490ms
● OK 209ms
● SLOW 341ms
● OK 66ms
● OK 64ms
● OK 57ms
● OK 62ms
● OK 262ms
● OK 195ms
● OK 83ms
● OK 70ms
● OK 109ms
● SLOW 310ms
● SLOW 436ms
● OK 161ms
● OK 182ms
18 of 2,745 checks

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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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