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Skim

payment-readyonline

payment-ready until 2026-11-03

Skim is the x402-native clean reader for AI agents: send a URL, get back agent-ready markdown plus structured metadata in milliseconds.

Compare: all web scraping APIs

skim402.com ↗

Call it x402 v2

x402 v2

Base URL
https://skim402.com
Payment
x402 v2, header channel
$ curl -i 'https://skim402.com/api/v2/read'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 4 paid routes on skim402.com

POST/api/v2/extractBase$0.015since 06-16
GET/api/v2/readBase$0.002since 06-16
POST/api/v2/read/batchBase$0.02since 06-16
GET/api/v2/read/jsBase$0.005since 06-16

Prices as captured in the 402 response: median $0.01 across the 4 endpoints.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
POST/api/v2/extractSkim: structured extraction · URL + JSON Schema to schema-conforming JSON via LLM.$0.015BaseUSDCheadersince 06-16
GET/api/v2/readSkim: clean reader · URL to agent-ready markdown + structured metadata, ~4x smaller than raw HTML.$0.002BaseUSDCheadersince 06-16
POST/api/v2/read/batchSkim: batch reader · up to 10 URLs to agent-ready markdown in one paid call, ~4x smaller than raw HTML.$0.02BaseUSDCheadersince 06-16
GET/api/v2/read/jsSkim: JS-rendered reader · full headless browser render for SPAs and JS-gated pages; clean markdown ~4x smaller than raw HTML.$0.005BaseUSDCheadersince 06-16

Payment evidence

402 payload captured at . Check evidence JSON · Measurement methodology.

First of 4 payloads captured by the monitor.

123 lines, scroll inside

{
  "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
}
Other captured 402 responses (3)

Captured payload 2 of 4

{
  "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
}

Captured payload 3 of 4

{
  "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
}

Captured payload 4 of 4

{
  "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
}

Can I trust it score from our own monitoring

score from our own monitoring

88/100 Solid

#4 of 44 in Content. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
100% uptime 30d
Compliance
A 14/14 checks pass
Price
$0.002 to $0.02 p16 in Content
Risk
clean no risk flag
Traction
$0.92 30d 15 buyers, top buyer 72% (address, not entity)
14/14 compliance checks
  • 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

402 terms unchanged since 2026-06-16. Last up 2026-10-27.

── Site signals

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
How the score works

What the score read on this service: status online, 100% uptime 30d, 481ms response p95, x402 compliance 14 of 14, $0.002 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

It is a score inside Content, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 44 listings, this one among them: the same 44 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Settled via coinbase ($0.92, 364 tx). Traction is a conservative undercount; first settlement seen 2026-05-17.

All measured facts

What it does

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.

Skim is a listed x402 Content API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.

Page rendered at . This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-09-28 to 2026-10-27 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · Content

uptime · latest daily rollup
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
481ms
avg response
265ms
total checks
2,737

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

price (min)
$0.002
price (max)
$0.02
category percentile (min)
p16 in Content
category percentile (max)
p30 in Content
endpoints / prices
4 / 4
model
tiered
stability
100%

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
157d
registrar
Cloudflare, Inc.
hosting
custom
domain created
2026-05-17

Identity facts, not a risk score.

assessment volume 30d
$0.92
exact assessment volume 30d (USD)
0.92
assessment recorded at (UTC)
2026-10-26T21:05:55.529Z
buyers 30d
15
settlements 30d
364
measured since
2026-05-17 (start of our harvest window)
last settlement
2026-10-26
top buyer share
72% of 30d volume (address, not entity)
top 3 buyers share
83% of 30d volume (addresses, not entities)
concentrated volume
no
trend 7d vs 30d
0.49x the 30d daily rate
networks
eip155:8453
volume all-time
$16.76
settlements all-time
3,913
median settlement 30d
$0.002
max settlement 30d
$0.02

Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.

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

Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.

member since
2026-06-12
Recent checks
Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402418ms4
Online402313ms4
Online402462ms4
Online402236ms4
Online402212ms4
Online402316ms4
Online402245ms4
Online402232ms4
Online40283ms4
Online402374ms4
Online40282ms4
Online402339ms4
Online402213ms4
Online40292ms4
Online402407ms4
Online402464ms4
Online402130ms4
Online402286ms4

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $0.92, peak $0.29 on 10-02
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime 100% on all 29 completed days
Volume 30d
$0.92
Uptime
100% on all 29 completed days
Daily on-chain settlement volume in US dollars, 2026-09-28 to 2026-10-27; highest day $0.29 on 10-02; 2 days have no data in the payload; distinct buyers per day
More charts
Response time daily average, ms min 140ms, avg 257ms, max 414ms

09-28 to 10-27* UTC

Scores over time

x402 compliance low 14/14, high 14/14

09-28 to 10-27* UTC

Price percentile in Content own low to high; exact values below

09-28 to 10-27* UTC

Site signals present (of 6) own low to high; exact values below

09-28 to 10-27* UTC

Scores: one day per column, 09-28 to 10-27*, on the columns of Response time. Uptime held 100% every day in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/skim/price, /scores, /volume and /buyers.

Values

* today so far, partial (UTC).

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Daily snapshot total, 30d: $0.92, peak $0.29 on 10-02. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.

Daily address snapshots: 2026-09-28 to 2026-10-27 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here. † marks a recorded $0.00 with settlements.

Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.

Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-09-28 to 2026-10-27: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayVolumeBuyersSettlementsUptimeResponseCompliancePrice percentileSite signals
2026-09-28$0.00 recorded†11100%347.38ms14/14p144/6
2026-09-29$0.15260100%286.51ms14/14p134/6
2026-09-30$0.00 recorded†11100%312.19ms14/14p134/6
2026-10-01$0.00 recorded†11100%271.98ms14/14p134/6
2026-10-02$0.292125100%280.45ms14/14p134/6
2026-10-03$0.04221100%314.97ms14/14p134/6
2026-10-04$0.00 recorded†11100%183.27ms14/14p134/6
2026-10-05$0.0111100%407.71ms14/14p134/6
2026-10-06$0.08332100%154.98ms14/14p134/6
2026-10-07$0.0439100%296.22ms14/14p134/6
2026-10-08$0.0537100%350.94ms14/14p134/6
2026-10-09$0.0122100%286.93ms14/14p134/6
2026-10-10no datano datano data100%302.78ms14/14p134/6
2026-10-11$0.0244100%276.70ms14/14p134/6
2026-10-12$0.00 recorded†11100%305.04ms14/14p134/6
2026-10-13$0.11248100%242.73ms14/14p134/6
2026-10-14$0.00 recorded†11100%269.61ms14/14p144/6
2026-10-15$0.00 recorded†11100%240.36ms14/14p144/6
2026-10-16$0.00 recorded†11100%184.29ms14/14p144/6
2026-10-17$0.00 recorded†11100%152.94ms14/14p164/6
2026-10-18$0.0122100%177.56ms14/14p164/6
2026-10-19$0.00 recorded†11100%201.70ms14/14p164/6
2026-10-20$0.07228100%229.64ms14/14p164/6
2026-10-21$0.00 recorded†11100%140.14ms14/14p164/6
2026-10-22$0.0122100%414.26ms14/14p164/6
2026-10-23$0.0144100%204.08ms14/14p164/6
2026-10-24$0.0124100%155.72ms14/14p164/6
2026-10-25$0.0122100%183.39ms14/14p164/6
2026-10-26$0.00 recorded†11100%302.31ms14/14p164/6
2026-10-27*no datano datano data100%236.00msno datano datano data

Alternatives in Content

21millionpixels.art solid 90/100 99.9% up 30d $52.83 30d
ForgeMesh Library solid 89/100 100% up 30d $0.21 30d
penny402 solid 89/100 100% up 30d $0.10 30d
Pinata solid 88/100 100% up 30d $13.68 30d
Scribe solid 88/100 99.7% up 30d $0.08 30d

5 of 43 other ranked services in Content, ordered by the same measured score.

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