x402 List Submit a serviceSubmit
Menu

Vend API Merchant

payment-readyonline

payment-ready until 2026-10-15

Pay-per-call URL extraction and link checking for AI agents, settled in Nano (XNO) on nano:mainnet via x402 exact scheme.

extract.paypercall.dev ↗

Call it x402 v2

x402 v2

Base URL
https://extract.paypercall.dev
Payment
x402 v2, header channel
$ curl -i 'https://extract.paypercall.dev/api/v1/check-link'

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

Endpoints 2 paid routes on extract.paypercall.dev

GET/api/v1/check-link----since 09-21
GET/api/v1/extract----since 09-21
Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
GET/api/v1/check-linkNo description----UNKNOWNheadersince 09-21
GET/api/v1/extractNo description----UNKNOWNheadersince 09-21

Payment evidence

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

First of 2 payloads captured by the monitor.

58 lines, scroll inside

{
  "accepts": [
    {
      "asset": "XNO",
      "payTo": "nano_1yo6c1t64ahfjdw1dxizmbbnpdmbrckwhw9phbg5pdkeubrizga4qhnjmnx7",
      "amount": "100000000000000000000000000",
      "scheme": "exact",
      "network": "nano:mainnet",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://extract.paypercall.dev/api/v1/extract",
    "mimeType": "application/json"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "type": "http",
        "input": {
          "type": "query",
          "schema": {
            "type": "object",
            "required": [
              "url"
            ],
            "properties": {
              "url": {
                "type": "string",
                "format": "uri",
                "description": "URL to extract clean text from"
              }
            }
          },
          "example": {
            "url": "https://example.com/article"
          }
        },
        "method": "GET"
      }
    },
    "rail-hint": {
      "info": {
        "why": "Zero network fees, no minimum, sub-second finality. This quote is the metered price; the payer pays exactly the metered amount, with no gas floor.",
        "docs": "https://github.com/feeless402/feeless402",
        "site": "https://feeless402.com",
        "spec": "x402 exact scheme on nano:mainnet",
        "topup": "nano-pay topup 5 --asset USDC-BASE --execute",
        "faucets": [
          "https://feeless402.com"
        ],
        "cheapest": "nano:mainnet",
        "bootstrap": "pip install feeless402 && nano-pay init"
      }
    }
  },
  "x402Version": 2
}
Other captured 402 responses (1)

Captured payload 2 of 2

{
  "accepts": [
    {
      "asset": "XNO",
      "payTo": "nano_1yo6c1t64ahfjdw1dxizmbbnpdmbrckwhw9phbg5pdkeubrizga4qhnjmnx7",
      "amount": "100000000000000000000000000",
      "scheme": "exact",
      "network": "nano:mainnet",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://check.paypercall.dev/api/v1/check-link",
    "mimeType": "application/json"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "type": "http",
        "input": {
          "type": "query",
          "schema": {
            "type": "object",
            "required": [
              "url"
            ],
            "properties": {
              "url": {
                "type": "string",
                "format": "uri",
                "description": "URL whose status and redirect chain to check"
              }
            }
          },
          "example": {
            "url": "https://example.com"
          }
        },
        "method": "GET"
      }
    },
    "rail-hint": {
      "info": {
        "why": "Zero network fees, no minimum, sub-second finality. This quote is the metered price; the payer pays exactly the metered amount, with no gas floor.",
        "docs": "https://github.com/feeless402/feeless402",
        "site": "https://feeless402.com",
        "spec": "x402 exact scheme on nano:mainnet",
        "topup": "nano-pay topup 5 --asset USDC-BASE --execute",
        "faucets": [
          "https://feeless402.com"
        ],
        "cheapest": "nano:mainnet",
        "bootstrap": "pip install feeless402 && nano-pay init"
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

79/100 Solid

#277 of 364 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
100% uptime since 09-21
Compliance
A 12/12 checks pass
Price
-
Risk
clean no risk flag
Traction
---
12/12 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 2026-09-21. Last up 2026-10-08.

── 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, 676ms response p95, x402 compliance 12 of 12, price not captured, no known payTo, so no on-chain traction to read. 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 Data, 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 364 listings, this one among them: the same 364 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.

All measured facts

What it does

Pay-per-call URL extraction and link checking for AI agents, settled in Nano (XNO) on nano:mainnet via x402 exact scheme. Extract clean text/markdown from any URL, or check HTTP status, response time and redirect chain. No signup, no API key, no account; payment is verified directly on the Nano ledger.

Vend API Merchant is a listed x402 Data API. No payment network has been captured yet. 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: 2026-09-09 to 2026-10-08 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. 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 · Data

uptime · latest daily rollup
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
676ms
avg response
641ms
total checks
1,526

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

price (min)
-
category percentile (min)
-
endpoints / prices
2 / 0
model
unknown
stability
-

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.

No settlement address is mapped for this service yet, so on-chain volume cannot be measured. Shown as unmeasured, not zero.

member since
2026-09-21
Recent checks
Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402601ms2
Online402579ms2
Online402493ms2
Online402463ms2
Online402540ms2
Online402460ms2
Online402456ms2
Online402696ms2
Online402530ms2
Online402464ms2
Online402500ms2
Online402474ms2
Online402452ms2
Online402676ms2
Online402272ms2
Online402476ms2
Online402650ms2
Online402630ms2

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume

No settlement address is mapped for this service yet, so on-chain volume cannot be measured. Shown as unmeasured, not zero.

Uptime 100% on all 17 completed days
Uptime
100% on all 17 completed days

No settlement address is mapped for this service yet, so on-chain volume cannot be measured. Shown as unmeasured, not zero.

More charts
Response time daily average, ms min 363ms, avg 637ms, max 818ms

09-09 to 10-08* UTC

Scores over time

x402 compliance low 12/12, high 12/12

09-09 to 10-08* UTC

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

09-09 to 10-08* UTC

Scores: one day per column, 09-09 to 10-08*, on the columns of Response time. 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/vend-api-merchant-mub57rxj-0/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.

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

Daily values, 2026-09-21 to 2026-10-08: uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayUptimeResponseCompliancePrice percentileSite signals
2026-09-21100%637.14ms12/12no data4/6
2026-09-22100%818.29ms12/12no data4/6
2026-09-23100%723.24ms12/12no data4/6
2026-09-24100%635.21ms12/12no data4/6
2026-09-25100%576.96ms12/12no data4/6
2026-09-26100%700.71ms12/12no data4/6
2026-09-27100%697.23ms12/12no data4/6
2026-09-28100%745.78ms12/12no data4/6
2026-09-29100%756.07ms12/12no data4/6
2026-09-30100%683.26ms12/12no data4/6
2026-10-01100%647.31ms12/12no data4/6
2026-10-02100%671.77ms12/12no data4/6
2026-10-03100%695.19ms12/12no data4/6
2026-10-04100%734.77ms12/12no data4/6
2026-10-05100%442.70ms12/12no data4/6
2026-10-06100%362.77ms12/12no data4/6
2026-10-07100%402.40ms12/12no data4/6
2026-10-08*100%539.43ms12/12no data4/6

Alternatives in Data

SniperX•x402 strong 96/100 99.9% up 30d $333.50 30d
claw402 strong 96/100 100% up 30d $958.61 30d
cn402 strong 94/100 100% up 30d $40.85 30d
glim.sh strong 93/100 100% up 30d $21.20 30d
twit.sh strong 93/100 100% up 30d $33.57 30d

5 of 363 other ranked services in Data, ordered by the same measured score.

see the whole category

Own this service?

Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.

Update this listing

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

Verify this service ($0.25)
Embed a badge

HTML

<a href="https://x402-list.com/services/vend-api-merchant-mub57rxj-0?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/vend-api-merchant-mub57rxj-0.svg" alt="Vend API Merchant listed on x402-list" height="28">
</a>

Markdown

[![Vend API Merchant on x402-list](https://x402-list.com/badge/vend-api-merchant-mub57rxj-0.svg)](https://x402-list.com/services/vend-api-merchant-mub57rxj-0?utm_source=badge&utm_medium=referral&utm_campaign=embed)

HTML, live uptime variant

<a href="https://x402-list.com/services/vend-api-merchant-mub57rxj-0?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/vend-api-merchant-mub57rxj-0.svg?data=uptime" alt="Vend API Merchant uptime on x402-list" height="28">
</a>
Delisting

To request delisting, email info@x402-list.com or update your listing at /services/vend-api-merchant-mub57rxj-0/update.