ZGAS-001 Zero-Gas Agent Commerce Field Guide

payment-readyonline

payment-ready until 2026-10-12

Existing ZGAS-001 pack: source-backed brief + 12 prompts + venues.csv.

publish.new ↗

Call it x402 v2

x402 v2

Base URL: https://publish.new
Payment: x402 v2, header channel

$ curl -i 'https://publish.new/api/artifact/zgas-001-zero-gas-agent-commerce-field-guide-7ba132fa/content'

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

Endpoints 1 paid route on publish.new

GET/api/artifact/zgas-001-zero-gas-agent-commerce-field-guide-7ba132fa/contentBase$5.00since 08-21

Prices as captured in the 402 response: $5.00, unchanged since first capture.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
Method	Path	Description	Price	Network	Asset	402 channel	Captured
GET	/api/artifact/zgas-001-zero-gas-agent-commerce-field-guide-7ba132fa/content	Existing ZGAS-001 pack: source-backed brief + 12 prompts + venues.csv. Pay 5 USDC on Base to 0x6cBC7E018A7773dc16a7e4b57E8D524332f4a880. Legal digital good for 0-ETH sellers.	$5.00	Base	USDC	header	since 08-21

Payment evidence

402 payload captured at 2026-08-21 13:40:00 UTC. Check evidence JSON · Measurement methodology.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      },
      "payTo": "0x6cBC7E018A7773dc16a7e4b57E8D524332f4a880",
      "amount": "5000000",
      "scheme": "exact",
      "network": "eip155:8453",
      "resource": {
        "url": "https://public.api.paragraph.com/x402/zgas-001-zero-gas-agent-commerce-field-guide-7ba132fa"
      },
      "description": "Existing ZGAS-001 pack: source-backed brief + 12 prompts + venues.csv. Pay 5 USDC on Base to 0x6cBC7E018A7773dc16a7e4b57E8D524332f4a880. Legal digital good for 0-ETH sellers.",
      "maxAmountRequired": "5000000",
      "maxTimeoutSeconds": 60
    }
  ],
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

76/100 Solid

                           │         │········│···
0                          55        75       93

                │     │····│··
0               55    75   93

#38 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: $5.00 p86 in Content
Risk: clean no risk flag
Traction: $0.00 30d 0 buyers

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 2026-08-21. Last up 2026-10-05.

── 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, 1792ms response p95, x402 compliance 14 of 14, $5 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.

Traction is a conservative undercount.

All measured facts

What it does

Existing ZGAS-001 pack: source-backed brief + 12 prompts + venues.csv. Pay 5 USDC on Base to 0x6cBC7E018A7773dc16a7e4b57E8D524332f4a880.

ZGAS-001 Zero-Gas Agent Commerce Field Guide 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 2026-10-05 19:03:05 UTC. Latest service check observed at 2026-10-05 20:06:10 UTC. Service data JSON · Measurement methodology.

Page rendered at 2026-10-05 20:14:36 UTC. This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: 2026-10-05 20:06:10 UTC. Latest price capture: 2026-08-21 13:39:07 UTC. 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 2026-10-05 19:03:05 UTC. 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: 2026-07-08 to 2026-10-05 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 · Content

uptime · latest daily rollup: 100%
uptime 7d: 100%
uptime 30d: 100%
uptime 90d: 100%
response p95: 1792ms
avg response: 1373ms
total checks: 2,757

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

price (min): $5.00
category percentile (min): p86 in Content
endpoints / prices: 1 / 1
model: flat
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: 1023d
registrar: CloudFlare, Inc.
hosting: custom
domain created: 2023-12-14

Identity facts, not a risk score.

assessment volume 30d: $0.00
exact assessment volume 30d (USD): 0
assessment recorded at (UTC): 2026-10-05T19:03:05.261Z
buyers 30d: 0
settlements 30d: 0
measured since: --- (start of our harvest window)
last settlement: ---
top buyer share: -
trend 7d vs 30d: -
networks: eip155:8453
volume all-time: $0
settlements all-time: 0
median settlement 30d: -
max settlement 30d: -

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 is part of the ranking score: a higher share lowers the traction part of the score, by up to half when one address holds all 30d volume.

member since: 2026-08-21

Recent checks

Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)	Status	HTTP	Response	Endpoints
2026-10-05 20:06:10 UTC	Online	402	665ms	1
2026-10-05 19:50:12 UTC	Online	402	819ms	1
2026-10-05 19:34:10 UTC	Online	402	423ms	1
2026-10-05 19:18:19 UTC	Online	402	653ms	1
2026-10-05 19:02:13 UTC	Online	402	494ms	1
2026-10-05 18:46:18 UTC	Online	402	488ms	1
2026-10-05 18:30:15 UTC	Online	402	883ms	1
2026-10-05 18:14:14 UTC	Online	402	768ms	1
2026-10-05 17:58:15 UTC	Online	402	1058ms	1
2026-10-05 17:42:15 UTC	Online	402	873ms	1
2026-10-05 17:26:13 UTC	Online	402	752ms	1
2026-10-05 17:10:16 UTC	Online	402	1298ms	1
2026-10-05 16:54:14 UTC	Online	402	869ms	1
2026-10-05 16:38:13 UTC	Online	402	818ms	1
2026-10-05 16:22:14 UTC	Online	402	821ms	1
2026-10-05 16:06:14 UTC	Online	402	582ms	1
2026-10-05 15:50:14 UTC	Online	402	824ms	1
2026-10-05 15:34:15 UTC	Online	402	620ms	1

Over time

On-chain volume daily snapshots, USD no volume data in the last 90d

                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
       ··························································································
    $0

volume no data in the payload

Distinct buyers per dayDistinct buyers per day

       ··························································································

Uptime 2 of 45 completed days below 100%

       ············································█████████████▇██████████▇█████████████████████

uptime below 100%, to scale

       07-08                                       08-21                                   10-05*

Snapshots 90d: $0.00
Uptime: 2 of 45 completed days below 100%

Daily on-chain settlement volume in US dollars, 2026-07-08 to 2026-10-05; 46 days have no data in the payload; distinct buyers per day

Day    Volume             USD  Buyers
08-21  · no data, 46 days to 10-05*

More charts

Response time daily average, ms min 639ms, avg 1304ms, max 2062ms

                                                   ▂▄▃▄▅▄▄▄▆▅▆▅▅▆▆▆▆▅▆▆▅▅▅▄▄▄▆▅▇▆▇▇▇▃▇█▅▅▆▅▅▄▅▅▄▅

07-08 to 08-06 UTC

      07-08         07-22      08-06

08-07 to 09-05 UTC

                    ▂▄▃▄▅▄▄▄▆▅▆▅▅▆▆▆

      08-07         08-21      09-05

09-06 to 10-05* UTC

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      09-06         09-20     10-05*

Scores over time

x402 compliance low 14/14, high 14/14

                                                   ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

07-08 to 08-06 UTC

      07-08         07-22      08-06

08-07 to 09-05 UTC

                    ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

      08-07         08-21      09-05

09-06 to 10-05* UTC

      ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

      09-06         09-20     10-05*

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

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07-08 to 08-06 UTC

      07-08         07-22      08-06

08-07 to 09-05 UTC

                    ▃▃▃▃▄▇▇▇▇▇▅▅▅▇▇▇

      08-07         08-21      09-05

09-06 to 10-05* UTC

      ▇▇▇▇▇▇▇▇▄▄▄▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁▃

      09-06         09-20     10-05*

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

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07-08 to 08-06 UTC

      07-08         07-22      08-06

08-07 to 09-05 UTC

                    ▇▇▇▇▇▇▁▁▇▇▇▇▇▇▇▇

      08-07         08-21      09-05

09-06 to 10-05* UTC

      ▇▇▇▇▇▇▇▇▇▇▇▁▁▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇

      09-06         09-20     10-05*

       07-08                                       08-21                                   10-05*

Scores: one day per column, 07-08 to 10-05*, 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, inside this window: a step there is a metric change, not a regression. 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/zgas-001-zero-gas-agent-commerce-field-guide/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, no volume data in the last 90d. 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: 2026-07-08 to 2026-10-05 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 2026-10-05 19:03:05 UTC. Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-08-21 to 2026-10-05: 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
Day	Volume	Buyers	Settlements	Uptime	Response	Compliance	Price percentile	Site signals
2026-08-21	no data	no data	no data	100%	639.03ms	14/14	p86	4/6
2026-08-22	no data	no data	no data	100%	1009.70ms	14/14	p86	4/6
2026-08-23	no data	no data	no data	100%	829.67ms	14/14	p86	4/6
2026-08-24	no data	no data	no data	100%	992.43ms	14/14	p86	4/6
2026-08-25	no data	no data	no data	100%	1398.12ms	14/14	p87	4/6
2026-08-26	no data	no data	no data	100%	981.91ms	14/14	p89	4/6
2026-08-27	no data	no data	no data	100%	1082.68ms	14/14	p89	0/6
2026-08-28	no data	no data	no data	100%	904.67ms	14/14	p89	0/6
2026-08-29	no data	no data	no data	100%	1444.53ms	14/14	p89	4/6
2026-08-30	no data	no data	no data	100%	1207.12ms	14/14	p89	4/6
2026-08-31	no data	no data	no data	100%	1513.25ms	14/14	p88	4/6
2026-09-01	no data	no data	no data	100%	1236.80ms	14/14	p88	4/6
2026-09-02	no data	no data	no data	100%	1186.18ms	14/14	p88	4/6
2026-09-03	no data	no data	no data	98.89%	1451.00ms	14/14	p89	4/6
2026-09-04	no data	no data	no data	100%	1526.94ms	14/14	p89	4/6
2026-09-05	no data	no data	no data	100%	1597.40ms	14/14	p89	4/6
2026-09-06	no data	no data	no data	100%	1418.71ms	14/14	p89	4/6
2026-09-07	no data	no data	no data	100%	1315.53ms	14/14	p89	4/6
2026-09-08	no data	no data	no data	100%	1516.19ms	14/14	p89	4/6
2026-09-09	no data	no data	no data	100%	1568.60ms	14/14	p89	4/6
2026-09-10	no data	no data	no data	100%	1180.84ms	14/14	p89	4/6
2026-09-11	no data	no data	no data	100%	1199.72ms	14/14	p89	4/6
2026-09-12	no data	no data	no data	100%	1179.17ms	14/14	p89	4/6
2026-09-13	no data	no data	no data	100%	1052.77ms	14/14	p89	4/6
2026-09-14	no data	no data	no data	98.89%	1097.91ms	14/14	p87	4/6
2026-09-15	no data	no data	no data	100%	1078.55ms	14/14	p87	4/6
2026-09-16	no data	no data	no data	100%	1493.52ms	14/14	p87	4/6
2026-09-17	no data	no data	no data	100%	1377.20ms	14/14	p87	0/6
2026-09-18	no data	no data	no data	100%	1772.30ms	14/14	p87	0/6
2026-09-19	no data	no data	no data	100%	1513.68ms	14/14	p87	4/6
2026-09-20	no data	no data	no data	100%	1725.00ms	14/14	p87	4/6
2026-09-21	no data	no data	no data	100%	1752.68ms	14/14	p85	4/6
2026-09-22	no data	no data	no data	100%	1721.79ms	14/14	p85	4/6
2026-09-23	no data	no data	no data	100%	842.17ms	14/14	p85	4/6
2026-09-24	no data	no data	no data	100%	1841.86ms	14/14	p85	4/6
2026-09-25	no data	no data	no data	100%	2062.37ms	14/14	p85	4/6
2026-09-26	no data	no data	no data	100%	1262.23ms	14/14	p85	4/6
2026-09-27	no data	no data	no data	100%	1375.60ms	14/14	p85	4/6
2026-09-28	no data	no data	no data	100%	1635.73ms	14/14	p85	4/6
2026-09-29	no data	no data	no data	100%	1205.70ms	14/14	p85	4/6
2026-09-30	no data	no data	no data	100%	1274.61ms	14/14	p85	4/6
2026-10-01	no data	no data	no data	100%	1077.20ms	14/14	p85	4/6
2026-10-02	no data	no data	no data	100%	1180.18ms	14/14	p85	4/6
2026-10-03	no data	no data	no data	100%	1194.38ms	14/14	p85	4/6
2026-10-04	no data	no data	no data	100%	903.00ms	14/14	p85	4/6
2026-10-05*	no data	no data	no data	100%	1163.65ms	14/14	p86	4/6

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

see the whole category

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