Penny API
Deterministic schema.org LocalBusiness JSON-LD generator with validation warnings. POST JSON {name, businessType, telephone, address fields, openingHours, ...}; returns {jsonld, scriptTag, warnings}. $0.05 per call.
Dataoffline · HTTP 530eip155:8453Exactvia cdp
SeoSchema.orgJson-ldLocal-businessStructured-data
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 snapshots so far.
$0.10
Verified settled volume
2 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-21 23:43Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xDD175adaB7bBB4454e29Da56dB0614BC70c8D6A7The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0xDD175adaB7bBB4454e29Da56dB0614BC70c8D6A7",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://pennyinpublic.com/api/local-schema",
"tags": [
"seo",
"schema.org",
"json-ld",
"local-business",
"structured-data",
"generator"
],
"mimeType": "application/json",
"description": "Deterministic schema.org LocalBusiness JSON-LD generator with validation warnings. POST JSON {name, businessType, telephone, address fields, openingHours, ...}; returns {jsonld, scriptTag, warnings}. $0.05 per call.",
"serviceName": "Penny API"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://anytowndrainpros.example",
"name": "Anytown Drain Pros",
"telephone": "+1-503-555-0100",
"postalCode": "97045",
"businessType": "Plumber",
"openingHours": [
"Mo-Fr 08:00-17:00"
],
"addressRegion": "OR",
"streetAddress": "123 Main St",
"addressLocality": "Anytown"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"jsonld": {
"name": "Anytown Drain Pros",
"@type": "Plumber",
"@context": "https://schema.org",
"telephone": "+1-503-555-0100"
},
"warnings": [
"no description supplied — schema.org description improves rich results"
],
"scriptTag": "<script type=\"application/ld+json\">{...}</script>"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"name"
],
"properties": {
"geo": {
"type": "object",
"properties": {
"latitude": {
"type": "number"
},
"longitude": {
"type": "number"
}
},
"description": "Coordinates. Dropped with a warning if out of range."
},
"url": {
"type": "string",
"description": "Business website URL."
},
"name": {
"type": "string",
"description": "REQUIRED. Business name."
},
"image": {
"type": "string",
"description": "Image URL."
},
"sameAs": {
"type": "array",
"items": {
"type": "string"
},
"description": "Profile URLs — Google Business Profile, Facebook, Yelp."
},
"telephone": {
"type": "string",
"description": "Public phone number."
},
"postalCode": {
"type": "string"
},
"priceRange": {
"type": "string",
"description": "e.g. \"$$\"."
},
"description": {
"type": "string",
"description": "One-paragraph business description."
},
"businessType": {
"type": "string",
"description": "schema.org LocalBusiness subtype, e.g. Plumber, Restaurant, HairSalon. Unknown values fall back to LocalBusiness with a warning."
},
"openingHours": {
"type": "array",
"items": {
"type": "string"
},
"description": "schema.org openingHours strings, e.g. \"Mo-Fr 08:00-17:00\"."
},
"addressRegion": {
"type": "string",
"description": "State or region code, e.g. OR."
},
"streetAddress": {
"type": "string"
},
"addressCountry": {
"type": "string",
"description": "ISO country code, defaults to US."
},
"addressLocality": {
"type": "string",
"description": "City."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"jsonld": {
"type": "object",
"description": "schema.org LocalBusiness JSON-LD object."
},
"warnings": {
"type": "array",
"items": {
"type": "string"
},
"description": "Validation warnings for missing or dropped fields."
},
"scriptTag": {
"type": "string",
"description": "The same JSON-LD wrapped in a ready-to-paste script tag."
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.05USDC≈ $0.05 USD
on Base · exact scheme
Pay 0.05 USDC on Base to 0xDD17…8D6A7. The signed payment is good for 5 minutes.
- Paid to
- 0xDD17…8D6A7
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0xDD175adaB7bBB4454e29Da56dB0614BC70c8D6A7",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://anytowndrainpros.example",
"name": "Anytown Drain Pros",
"telephone": "+1-503-555-0100",
"postalCode": "97045",
"businessType": "Plumber",
"openingHours": [
"Mo-Fr 08:00-17:00"
],
"addressRegion": "OR",
"streetAddress": "123 Main St",
"addressLocality": "Anytown"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"jsonld": {
"name": "Anytown Drain Pros",
"@type": "Plumber",
"@context": "https://schema.org",
"telephone": "+1-503-555-0100"
},
"warnings": [
"no description supplied — schema.org description improves rich results"
],
"scriptTag": "<script type=\"application/ld+json\">{...}</script>"
}
}
},
"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",
"required": [
"name"
],
"properties": {
"geo": {
"type": "object",
"properties": {
"latitude": {
"type": "number"
},
"longitude": {
"type": "number"
}
},
"description": "Coordinates. Dropped with a warning if out of range."
},
"url": {
"type": "string",
"description": "Business website URL."
},
"name": {
"type": "string",
"description": "REQUIRED. Business name."
},
"image": {
"type": "string",
"description": "Image URL."
},
"sameAs": {
"type": "array",
"items": {
"type": "string"
},
"description": "Profile URLs — Google Business Profile, Facebook, Yelp."
},
"telephone": {
"type": "string",
"description": "Public phone number."
},
"postalCode": {
"type": "string"
},
"priceRange": {
"type": "string",
"description": "e.g. \"$$\"."
},
"description": {
"type": "string",
"description": "One-paragraph business description."
},
"businessType": {
"type": "string",
"description": "schema.org LocalBusiness subtype, e.g. Plumber, Restaurant, HairSalon. Unknown values fall back to LocalBusiness with a warning."
},
"openingHours": {
"type": "array",
"items": {
"type": "string"
},
"description": "schema.org openingHours strings, e.g. \"Mo-Fr 08:00-17:00\"."
},
"addressRegion": {
"type": "string",
"description": "State or region code, e.g. OR."
},
"streetAddress": {
"type": "string"
},
"addressCountry": {
"type": "string",
"description": "ISO country code, defaults to US."
},
"addressLocality": {
"type": "string",
"description": "City."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"jsonld": {
"type": "object",
"description": "schema.org LocalBusiness JSON-LD object."
},
"warnings": {
"type": "array",
"items": {
"type": "string"
},
"description": "Validation warnings for missing or dropped fields."
},
"scriptTag": {
"type": "string",
"description": "The same JSON-LD wrapped in a ready-to-paste script tag."
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-21 23:43Z
- Last indexed by Roundhouse
- 2026-09-03 05:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 11:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 530
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Penny API and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Penny%20API' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://pennyinpublic.com/api/local-schema, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.