Public Domain Check

● Live

public-domain-check-production.up.railway.app

Copies a prompt for your agent.

Clear a list of up to 50 works for US public-domain status in one call: $0.0075 per work brief (default), $0.015 full. For catalogs, reading lists, reprint plans and training-data checks.

Claim this service

Price: $0.015; Asked in its payment challenge
Chain: Base
Paid in: USDC
Live: 1 of 1 check

Endpoints

POSThttps://public-domain-check-production.up.railway.app/v1/pd-status/batch

$0.01 asked in its payment challenge on 13 Nov 2026

curl -i -X POST 'https://public-domain-check-production.up.railway.app/v1/pd-status/batch' \
  -H 'Content-Type: application/json' \
  -d '{"works":[{"title":"The Big Sleep","author":"Raymond Chandler"},{"title":"The Great Gatsby"}]}'

3 more endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the first endpoint's example. Other endpoints have not been checked individually.

Base URLhttps://public-domain-check-production.up.railway.app/v1

GET/property/risk$0.02
Get the FEMA flood zone (and whether flood insurance is required for a federally backed mortgage), seismic design category, county and census tract for a US street address or coordinates. Use when evaluating, listing, insuring or financing a property, or answering "is this address in a flood zone?". Combines the Census Geocoder, FEMA's National Flood Hazard Layer and USGS seismic maps in one call. Not charged if the address can't be found.
4 parameters and an example
- latquery
- lonquery
- formatquery
- addressquery
```
curl -i 'https://public-domain-check-production.up.railway.app/v1/property/risk'
```
GET/sanctions/screen$0.01
Screen a person, company, vessel or aircraft name against the US Treasury OFAC SDN and Consolidated sanctions lists, including aliases. Handles word order, accents, corporate suffixes and spelling variants. Use before onboarding a customer, paying a supplier or signing a counterparty. Brief answer by default; format=full lists up to 10 candidates with aliases, addresses, dates of birth and programs.
3 parameters and an example
- namequery, requiredBanco Nacional de Cuba
- typequeryentity
- formatquery
```
curl -i 'https://public-domain-check-production.up.railway.app/v1/sanctions/screen?name=Banco+Nacional+de+Cuba&type=entity'
```
GET/sanctions/wallet$0.005
Check a crypto wallet address against the digital-currency addresses on the US Treasury OFAC sanctions lists before sending or accepting payment. Use before paying an unknown counterparty, onboarding a wallet, or accepting funds. Covers Bitcoin, Ethereum and EVM chains, USDT, USDC, Tron, Litecoin, Monero, Solana and more; lists refreshed every 12 hours.
1 parameter and an example
- addressquery, required0x0330070FD38Ec3bB94F58FA55D40368271E9e54AWallet address (any chain)
```
curl -i 'https://public-domain-check-production.up.railway.app/v1/sanctions/wallet?address=0x0330070FD38Ec3bB94F58FA55D40368271E9e54A'
```

A dash means the listing gives no price or method. {Braces} mark a value you fill in. Copy buttons copy an example URL.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/public-domain-check-production.up.railway.app

Recent checks

13 Nov 2026Taller is slower; grey is not live.13 Nov 2026

Median response: 45 ms
Last checked: 13 Nov, 09:24 UTC

Our probes look for a payment challenge. They don't test payment or delivery.

All 1 checks

When (UTC)	Result	HTTP	Response
13 Nov, 09:24 UTC	Live	402	45ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 13 Nov, 09:24 UTC, it returned HTTP 402 or another detected payment-challenge signal.

What payment terms does Public Domain Check advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

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