payment-ready until 2026-09-24
Paid x402 API for AI agents that turns a product offer, audience and proof into a structured conversion-ready landing-page message map. Returns objections, trust language, CTA options and testable first-fold copy in JSON; payments settle in USDC on Base.
Pay from $0.01 to $9.00 in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
listed 2026-08-03 · no on-chain settlement recorded yet
VERDICT
ranking generation 3solid 84/100 #51 of 128 in AI by measured score
What the score read on this service: status online, 99.9% uptime 30d, 1178ms 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.
It is a score inside AI, 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 128 listings, this one among them. That set is wider than the 128 the position above is counted against, 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.
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.
ALTERNATIVES IN AI
Other AI services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).
| SERVICE | BAND | SCORE | UPTIME 30D | VOL 30D |
|---|---|---|---|---|
| Otto AI | strong | 95 | 100% | $61.79 |
| x402engine | solid | 93 | 100% | $24.22 |
| Agent402.tools | solid | 92 | 98.9% | $142.69 |
| GlianaAI | solid | 92 | 100% | $89.52 |
| StableEmail | solid | 89 | 99.9% | $27.14 |
ASSESSMENT
updated 2h agoThe parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.
reliability 99.9%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 99.9%
- uptime 90d
- 100%
- response p95
- 1178ms
- avg response
- 1107ms
- total checks
- 2,714
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.01 to $9.00 (p50 in AI)
- price (min)
- $0.01
- price (max)
- $9.00
- category percentile (min)
- p50 in AI
- category percentile (max)
- p91 in AI
- endpoints / prices
- 3 / 3
- model
- tiered
- stability
- 0%
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 $0.00 30d · 0 buyers
- volume 30d
- $0.00
- 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
- -
- settled via
- -
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.
CHANGES
2 in 30dPayout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.
changes schema changed 15d ago (2 in 30d)
schema changed · 15d ago
endpoint added GET /api/x402-demand-signal
schema added GET /api/x402-demand-signal exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}
price changed · 29d ago
GET /api/copy-preflight · eip155:8453 · USDC: 250000 → 40000
Amounts are on-wire atomic units in the named asset.
WHAT IT DOES
ai-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /api/conversion-brief | $9.00 | Base | USDC | header | |
| GET | /api/copy-preflight | $0.04 | Base | USDC | header | |
| GET | /api/x402-demand-signal | $0.01 | Base | USDC | header |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /api/conversion-brief returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://first-fold-48h.tatoespitia.chatgpt.site/api/conversion-brief'
// 402 response (captured by monitor) · 3 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0529fe0ff4f0001d8cbf259df5a71821bc2e0c5c",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://first-fold-48h.tatoespitia.chatgpt.site/api/x402-demand-signal",
"tags": [
"x402",
"market data",
"agent economy",
"demand signal"
],
"iconUrl": "https://first-fold-48h.tatoespitia.chatgpt.site/favicon.svg",
"mimeType": "application/json",
"description": "Return a current 30-day x402 demand summary with category volume, price, payer observations, and concentration caveats.",
"serviceName": "First Fold x402 Demand Signal"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"market": {
"calls30d": 0,
"grossVolumeEstimateUsd30d": 0,
"top10GrossConcentrationPct": 0,
"payerServiceObservations30d": 0
},
"sample": {
"rowCount": 100,
"windowDays": 30
},
"source": {
"url": "https://onyx-actions.onrender.com/bazaar.json",
"rights": "https://onyx-actions.onrender.com/.well-known/rights.json",
"treatment": "Derived aggregate with attribution; raw data is not resold.",
"attribution": "Onyx Bazaar / Onyx Protocol"
},
"caveats": [],
"product": "First Fold x402 Demand Signal",
"version": "1.0",
"categories": [],
"observedAt": "2026-09-01T00:00:00.000Z",
"topServicesByGrossEstimate": []
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"product",
"version",
"observedAt",
"source",
"sample",
"market",
"categories",
"topServicesByGrossEstimate",
"caveats"
],
"properties": {
"market": {
"type": "object"
},
"sample": {
"type": "object"
},
"source": {
"type": "object"
},
"caveats": {
"type": "array",
"items": {
"type": "string"
}
},
"product": {
"type": "string"
},
"version": {
"type": "string"
},
"categories": {
"type": "array",
"items": {
"type": "object"
}
},
"observedAt": {
"type": "string"
},
"topServicesByGrossEstimate": {
"type": "array",
"items": {
"type": "object"
}
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0529fe0ff4f0001d8cbf259df5a71821bc2e0c5c",
"amount": "9000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://first-fold-48h.tatoespitia.chatgpt.site/api/conversion-brief",
"tags": [
"copywriting",
"landing-page",
"conversion",
"marketing",
"audit"
],
"iconUrl": "https://first-fold-48h.tatoespitia.chatgpt.site/favicon.svg",
"mimeType": "application/json",
"description": "Generate a conversion-ready landing-page message map with three hero variants, page hierarchy, objection handling, proof plan, FAQs, and two prioritized tests.",
"serviceName": "First Fold Conversion API"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"tone": "direct",
"brand": "Northstar HVAC",
"offer": "same-week heat-pump installation plans",
"proof": "Written scope before installation;Permit coordination included",
"action": "Request a planning call",
"outcome": "choose the right system with a written plan",
"problem": "unclear options and surprise project costs",
"audience": "homeowners replacing an aging heating system",
"objection": "I do not want to be pressured into replacing a working system"
}
},
"output": {
"type": "json",
"example": {
"tests": [
{
"priority": 1,
"hypothesis": "An outcome-first headline will improve qualified CTA clicks."
}
],
"product": "First Fold Conversion Brief",
"guardrails": [
"Use only supplied claims and verify them before publishing."
],
"positioning": {
"oneLine": "Northstar HVAC provides same-week heat-pump installation plans for homeowners replacing an aging heating system."
},
"heroVariants": [
{
"cta": "Request a planning call",
"angle": "Outcome first",
"headline": "Choose the right system with a written plan—without unclear options and surprise project costs."
}
],
"pageHierarchy": [
{
"job": "Make the offer, audience, outcome, and next step understandable without scrolling.",
"section": "Hero"
}
],
"messageReadiness": {
"score": 90,
"interpretation": "Strong inputs. The main opportunity is hierarchy and testing."
},
"implementationOrder": [
"Verify every supplied claim and proof point.",
"Choose one hero angle and one primary action."
]
}
}
},
"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": [
"brand",
"offer",
"audience",
"problem",
"outcome",
"action"
],
"properties": {
"tone": {
"enum": [
"direct",
"warm",
"premium",
"technical"
],
"type": "string",
"description": "Desired voice. Defaults to direct."
},
"brand": {
"type": "string",
"description": "Brand or business name, up to 80 characters."
},
"offer": {
"type": "string",
"description": "The concrete product or service being sold."
},
"proof": {
"type": "string",
"description": "Zero to five verifiable proof points separated by semicolons."
},
"action": {
"type": "string",
"description": "The single primary action the page should drive."
},
"outcome": {
"type": "string",
"description": "The specific progress the visitor wants to make."
},
"problem": {
"type": "string",
"description": "The present problem the visitor wants resolved."
},
"audience": {
"type": "string",
"description": "The narrow customer group the page should address."
},
"objection": {
"type": "string",
"description": "The strongest reason a qualified visitor may delay."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"product",
"messageReadiness",
"positioning",
"heroVariants",
"pageHierarchy",
"tests",
"implementationOrder",
"guardrails"
],
"properties": {
"input": {
"type": "object"
},
"tests": {
"type": "array"
},
"product": {
"type": "string"
},
"version": {
"type": "string"
},
"faqDrafts": {
"type": "array"
},
"proofPlan": {
"type": "object"
},
"guardrails": {
"type": "array"
},
"positioning": {
"type": "object"
},
"heroVariants": {
"type": "array"
},
"pageHierarchy": {
"type": "array"
},
"objectionBlock": {
"type": "object"
},
"messageReadiness": {
"type": "object"
},
"implementationOrder": {
"type": "array"
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0529fe0ff4f0001d8cbf259df5a71821bc2e0c5c",
"amount": "40000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://first-fold-48h.tatoespitia.chatgpt.site/api/copy-preflight",
"tags": [
"landing page",
"copy",
"headline",
"CTA",
"conversion preflight",
"copywriting"
],
"iconUrl": "https://first-fold-48h.tatoespitia.chatgpt.site/favicon.svg",
"mimeType": "application/json",
"description": "Generate a landing-page conversion preflight for copy, headlines, CTA, positioning, objections, proof, FAQs, and prioritized tests.",
"serviceName": "First Fold Copy Preflight"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"tone": "direct",
"brand": "Northstar HVAC",
"offer": "same-week heat-pump installation plans",
"proof": "Written scope before installation;Permit coordination included",
"action": "Request a planning call",
"outcome": "choose the right system with a written plan",
"problem": "unclear options and surprise project costs",
"audience": "homeowners replacing an aging heating system",
"objection": "I do not want to be pressured into replacing a working system"
}
},
"output": {
"type": "json",
"example": {
"tests": [
{
"priority": 1,
"hypothesis": "An outcome-first headline will improve qualified CTA clicks."
}
],
"product": "First Fold Copy Preflight",
"positioning": {
"oneLine": "A clear offer for a defined audience."
},
"heroVariants": [
{
"cta": "Request a planning call",
"headline": "Choose the right system with a written plan."
}
],
"messageReadiness": {
"score": 94
}
}
}
},
"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": [
"brand",
"offer",
"audience",
"problem",
"outcome",
"action"
],
"properties": {
"tone": {
"enum": [
"direct",
"warm",
"premium",
"technical"
],
"type": "string"
},
"brand": {
"type": "string"
},
"offer": {
"type": "string"
},
"proof": {
"type": "string"
},
"action": {
"type": "string"
},
"outcome": {
"type": "string"
},
"problem": {
"type": "string"
},
"audience": {
"type": "string"
},
"objection": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"product",
"messageReadiness",
"positioning",
"heroVariants",
"tests"
],
"properties": {
"tests": {
"type": "array"
},
"product": {
"type": "string"
},
"faqDrafts": {
"type": "array"
},
"proofPlan": {
"type": "object"
},
"guardrails": {
"type": "array"
},
"positioning": {
"type": "object"
},
"heroVariants": {
"type": "array"
},
"pageHierarchy": {
"type": "array"
},
"objectionBlock": {
"type": "object"
},
"messageReadiness": {
"type": "object"
},
"implementationOrder": {
"type": "array"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/first-fold-conversion-briefs/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.
Median across 3 endpoints. Use the selector to isolate one.
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-09-02 · last up 2026-09-17
- 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) live · click to expand
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