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 $0.25 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
ASSESSMENT
updated 2h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- -
- uptime 7d
- -
- uptime 30d
- -
- uptime 90d
- -
- response p95
- 1100ms
- avg response
- 1100ms
- total checks
- 1
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.25 to $9.00 (p83 in AI)
- price (min)
- $0.25
- price (max)
- $9.00
- category percentile (min)
- p83 in AI
- category percentile (max)
- p93 in AI
- endpoints / prices
- 2 / 2
- model
- tiered
- stability
- 100%
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
- 1341d
- registrar
- MarkMonitor Inc.
- hosting
- custom
- domain created
- 2022-12-01
Identity facts, not a risk score.
traction $0 30d · 0 buyers
- volume 30d
- $0
- buyers 30d
- 0
- settlements 30d
- 0
- first settlement
- ---
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- $0
- max settlement 30d
- $0
- 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.
WHAT IT DOES
ai-derivedThe service turns a concise business brief into a structured landing-page message map.
- category
- copywriting-api
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /api/conversion-brief | $9.00 | Base | USDC | |
| GET | /api/copy-preflight | $0.25 | Base | USDC |
2 endpoints
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.
// request
curl -i 'https://first-fold-48h.tatoespitia.chatgpt.site/api/conversion-brief'
// 402 response (captured by monitor) · 2 payloads · click to expand
[
{
"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": "250000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://first-fold-48h.tatoespitia.chatgpt.site/api/copy-preflight",
"tags": [
"copywriting",
"landing-page",
"conversion",
"marketing",
"AI"
],
"iconUrl": "https://first-fold-48h.tatoespitia.chatgpt.site/favicon.svg",
"mimeType": "application/json",
"description": "Generate a compact conversion copy preflight with positioning, hero variants, hierarchy, 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 share the 24h window selected here. 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.
UPTIME
24h UPTIME 100%
RESPONSE TIME
AVG RESP 892ms
PRICE (captured 402, USD)
Median across 2 endpoints. Use the selector to isolate one.
SUB-SCORES (uptime + x402 compliance)
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
COMPLIANCE
14/14 checks pass · grade A- 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 (7) · click to expand
TIME STATUS RESP
● OK 842ms
● OK 1132ms
● OK 966ms
● OK 880ms
● OK 391ms
● OK 931ms
● OK 1100ms
EMBED THIS BADGE
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// Markdown
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// HTML · live uptime variant
<a href="https://x402-list.com/services/first-fold-conversion-briefs?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/first-fold-conversion-briefs.svg?data=uptime" alt="First Fold Conversion Briefs uptime on x402-list" height="28"> </a>