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Data Quality Gate

payment-readyonline

payment-ready until 2026-11-16

Clean scraped data and assess data quality before an agent acts on it.

Compare: all web scraping APIs

www.aidatatools.dev ↗

Call it x402 v2

x402 v2

Base URL
https://www.aidatatools.dev/api
Payment
x402 v2, header channel
$ curl -i -X POST 'https://www.aidatatools.dev/api/api'

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

Endpoints 3 paid routes on www.aidatatools.dev

POST/apiBase+Sol$0.01since 08-11
POST/api/cleanBase+Sol$0.04since 08-27
POST/api/clean/auditBase+Sol$0.12since 08-27

Prices as captured in the 402 response: median $0.04 across the 3 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/apiData Quality Gate: deterministic dataset quality verdict$0.01Base+SolUSDCheadersince 08-11
POST/api/cleanData Quality Gate: deterministic repair of scraped data$0.04Base+SolUSDCheadersince 08-27
POST/api/clean/auditData Quality Gate: deterministic repair + replayable audit trail$0.12Base+SolUSDCheadersince 08-27

Payment evidence

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

First of 3 payloads captured by the monitor.

141 lines, scroll inside

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "payTo": "8tosK4UvkrkhBq1fFquS4ecZKvHpeYtjCoMRMgMvcsQz",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x30Eab9013826eD708ec072AF66AE08f4B379FE07",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://www.aidatatools.dev/api",
    "tags": [
      "data-quality",
      "scraping",
      "cleaning",
      "deterministic",
      "json"
    ],
    "mimeType": "application/json",
    "description": "Data Quality Gate: deterministic dataset quality verdict",
    "serviceName": "AI Data Tools"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": [
            {
              "sku": "B0C1",
              "price": "12,99",
              "title": "Café Table Lamp & Shade"
            },
            {
              "sku": "B0C2",
              "price": null,
              "title": "N/A"
            }
          ],
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "score": 83.75,
            "checks": [
              {
                "name": "text_cleanliness",
                "detail": "2 of 30 values carry mojibake",
                "status": "warn"
              }
            ],
            "verdict": "RELIABLE"
          }
        }
      },
      "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": "array",
                "items": {
                  "type": "object"
                },
                "description": "The scraped data to process. A JSON array of objects, a single object, a CSV string or raw text are all accepted -- the endpoint detects the shape and gives the same shape back."
              },
              "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"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}
Other captured 402 responses (2)

Captured payload 2 of 3

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "payTo": "8tosK4UvkrkhBq1fFquS4ecZKvHpeYtjCoMRMgMvcsQz",
      "amount": "120000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x30Eab9013826eD708ec072AF66AE08f4B379FE07",
      "amount": "120000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://www.aidatatools.dev/api/clean/audit",
    "tags": [
      "data-quality",
      "scraping",
      "cleaning",
      "deterministic",
      "json"
    ],
    "mimeType": "application/json",
    "description": "Data Quality Gate: deterministic repair + replayable audit trail",
    "serviceName": "AI Data Tools"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": [
            {
              "sku": "B0C1",
              "price": "12,99",
              "title": "Café Table Lamp & Shade"
            },
            {
              "sku": "B0C2",
              "price": null,
              "title": "N/A"
            }
          ],
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "data": [
              {
                "sku": "B0C1",
                "price": "12,99",
                "title": "Café Table Lamp & Shade"
              }
            ],
            "audit": {
              "ledger": [
                {
                  "path": "[0].title",
                  "rule": "mojibake.repair",
                  "after": "Café",
                  "before": "Café"
                }
              ],
              "replay_id": "sha256:..."
            }
          }
        }
      },
      "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": "array",
                "items": {
                  "type": "object"
                },
                "description": "The scraped data to process. A JSON array of objects, a single object, a CSV string or raw text are all accepted -- the endpoint detects the shape and gives the same shape back."
              },
              "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"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 3

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "payTo": "8tosK4UvkrkhBq1fFquS4ecZKvHpeYtjCoMRMgMvcsQz",
      "amount": "40000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x30Eab9013826eD708ec072AF66AE08f4B379FE07",
      "amount": "40000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://www.aidatatools.dev/api/clean",
    "tags": [
      "data-quality",
      "scraping",
      "cleaning",
      "deterministic",
      "json"
    ],
    "mimeType": "application/json",
    "description": "Data Quality Gate: deterministic repair of scraped data",
    "serviceName": "AI Data Tools"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "sku": "B0C1",
            "price": "12,99",
            "title": "Café Table Lamp & Shade"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "sku": "B0C1",
            "price": "12,99",
            "title": "Café Table Lamp & Shade"
          }
        }
      },
      "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",
                "description": "The scraped data to process. A JSON array of objects, a single object, a CSV string or raw text are all accepted -- the endpoint detects the shape and gives the same shape back."
              },
              "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"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

80/100 Solid

#143 of 187 in Verification. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
99.8% uptime 30d
Compliance
A 14/14 checks pass
Price
$0.01 to $0.12 p50 in Verification
Risk
clean no risk flag
Traction
$4.98 30d 12 buyers, top buyer 43% (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 2026-09-27. Last up 2026-11-09.

── 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, 99.8% uptime 30d, 3016ms response p95, x402 compliance 14 of 14, $0.01 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 Verification, 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 187 listings, this one among them: the same 187 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 ($4.98, 84 tx). Traction is a conservative undercount; first settlement seen 2026-08-06.

All measured facts

What it does

Clean scraped data and assess data quality before an agent acts on it. Three POST endpoints, all deterministic and LLM-free: identical input always returns byte-identical output, so results are cacheable and replayable. POST /api ($0.01) - dataset quality verdict. Send a JSON array of rows; get a 0-100 score, a RELIABLE / USABLE_WITH_CLEANING / UNRELIABLE judgement, and exact per-check facts: completeness, nulls, type consistency, impossible values, exact and near duplicates, statistical outliers, cardinality. On financial data it also reports cross-source price divergence for the same asset. POST /api/clean ($0.04) - deterministic data cleaning. The response body IS the clean data: post a JSON array of row objects and the same array comes back repaired; post one object and one object comes back; post plain text and text comes back. CSV is accepted and returns parsed rows. Fixes broken encoding and mojibake ("Café" becomes "Café"), strips leftover HTML tags and entities, removes zero-width and invisible characters and non-breaking spaces, normalises whitespace. Repairs how data was encoded, never what it says: a negative price is reported, not rewritten. Flags failed extractions such as captcha walls and error pages instead of passing them off as content. POST /api/clean/audit ($0.12) - the same repaired data plus a reversible ledger of every transformation. Replaying it backwards reconstructs the exact input, byte for byte. Use it to clean scraped data, fix encoding, remove HTML from text, deduplicate rows, validate dataset contents, assess data quality, and decide whether to trust data before ingesting, indexing or trading on it. Never destroys a legitimate value: "None" stays a surname, "NA" stays Namibia, a Persian ZWNJ and an emoji joiner survive untouched. The full ruleset is published at GET /api/clean, readable before paying. Also a free Python library: pip install scrubkit.

Data Quality Gate is a listed x402 Verification API. Captured payment terms name Base, Solana. 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: 2026-10-11 to 2026-11-09 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 · Verification

uptime · latest daily rollup
100%
uptime 7d
100%
uptime 30d
99.8%
uptime 90d
99.7%
response p95
3016ms
avg response
1030ms
total checks
3,947

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

price (min)
$0.01
price (max)
$0.12
category percentile (min)
p50 in Verification
category percentile (max)
p67 in Verification
endpoints / prices
3 / 3
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
89d
registrar
Name.com, Inc.
hosting
custom
domain created
2026-08-08

Identity facts, not a risk score.

assessment volume 30d
$4.98
exact assessment volume 30d (USD)
4.98
assessment recorded at (UTC)
2026-11-09T11:53:14.775Z
buyers 30d
12
settlements 30d
84
measured since
2026-08-06 (start of our harvest window)
last settlement
2026-10-28
top buyer share
43% of 30d volume (address, not entity)
top 3 buyers share
90% of 30d volume (addresses, not entities)
concentrated volume
no
trend 7d vs 30d
1.05x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$5.31
settlements all-time
103
median settlement 30d
$0.02
max settlement 30d
$0.50

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
2026-08-11
Recent checks
Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402252ms3
Online4022832ms3
Online402258ms3
Online402344ms3
Online4021348ms3
Online4023291ms3
Online402287ms3
Online4023423ms3
Online4022320ms3
Online4022904ms3
Online402269ms3
Online402314ms3
Online4022267ms3
Online402318ms3
Online4022901ms3
Online4022897ms3
Online402339ms3
Online4023016ms3

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $4.98, peak $2.46 on 10-30
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime 3 of 29 completed days below 100%
uptime below 100%, to scale
Volume 30d
$4.98
Uptime
3 of 29 completed days below 100%
Daily on-chain settlement volume in US dollars, 2026-10-11 to 2026-11-09; highest day $2.46 on 10-30; 12 days have no data in the payload; distinct buyers per day
More charts
Response time daily average, ms min 696ms, avg 995ms, max 1477ms

10-11 to 11-09* UTC

Scores over time

x402 compliance low 14/14, high 14/14

10-11 to 11-09* UTC

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

10-11 to 11-09* UTC

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

10-11 to 11-09* UTC

Scores: one day per column, 10-11 to 11-09*, on the columns of Response time. Uptime held below 100% on some days 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/data-quality-gate/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: $7.21, peak $2.46 on 10-30. 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: 2026-10-11 to 2026-11-09 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.

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, 2026-10-11 to 2026-11-09: 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
2026-10-11no datano datano data100%1250.88ms14/14p444/6
2026-10-12no datano datano data97.78%1476.60ms14/14p444/6
2026-10-13no datano datano data100%819.77ms14/14p444/6
2026-10-14no datano datano data98.89%1180.02ms14/14p444/6
2026-10-15$0.5526100%1166.47ms14/14p444/6
2026-10-16$0.2916100%1162.17ms14/14p444/6
2026-10-17no datano datano data100%827.82ms14/14p444/6
2026-10-18no datano datano data100%826.45ms14/14p444/6
2026-10-19$0.0313100%909.31ms14/14p444/6
2026-10-20no datano datano data100%971.88ms14/14p444/6
2026-10-21$0.1412100%972.60ms14/14p444/6
2026-10-22$0.3316100%1067.03ms14/14p444/6
2026-10-23$0.1323100%945.12ms14/14p454/6
2026-10-24$0.1622100%1035.22ms14/14p454/6
2026-10-25$0.2511100%979.99ms14/14p454/6
2026-10-26$0.0724100%947.90ms14/14p454/6
2026-10-27$0.1423100%1066.34ms14/14p494/6
2026-10-28$0.1511100%696.10ms14/14p494/6
2026-10-29no datano datano data100%856.98ms14/14p514/6
2026-10-30$2.46313100%1055.64ms14/14p514/6
2026-10-31$0.2511100%1102.40ms14/14p514/6
2026-11-01$1.77111100%1027.87ms14/14p514/6
2026-11-02no datano datano data98.86%900.87ms14/14p514/6
2026-11-03no datano datano data100%856.28ms14/14p514/6
2026-11-04no datano datano data100%956.83ms14/14p514/6
2026-11-05$0.0212100%761.03ms14/14p514/6
2026-11-06$0.4012100%858.03ms14/14p514/6
2026-11-07no datano datano data100%1022.38ms14/14p504/6
2026-11-08$0.0522100%987.80ms14/14p504/6
2026-11-09*$0.0222100%1147.47ms14/14p504/6

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5 of 186 other ranked services in Verification, ordered by the same measured score.

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