Public Domain Check
Is a book, film or song public domain in the US, UK, EU, Canada or Japan? Pay per call via x402.
- tools
- 8
- auth
- Secret needed
- transport
- STDIO, HTTP
- env vars
- 2
- last updated
- Nov 14, 2026
Tools
8 toolsPublic tool metadata for what this MCP can expose to an agent.
check_public_domainReturns the status (public domain, likely public domain, in copyright, or undetermined), the public-domain date, the confidence, a one-line reason and the record IDs.
Returns the status (public domain, likely public domain, in copyright, or undetermined), the public-domain date, the confidence, a one-line reason and the record IDs.
No parameter schema in public metadata yet.
check_public_domain_batchChecks up to 50 works per call. Local wrapper only.
Checks up to 50 works per call. Local wrapper only.
No parameter schema in public metadata yet.
search_copyright_renewalsShows who renewed a work's copyright and when, which usually points to the rightsholder.
Shows who renewed a work's copyright and when, which usually points to the rightsholder.
No parameter schema in public metadata yet.
copyright_rules_for_yearTells you which rule applies to a publication year, and whether a record lookup is needed.
Tells you which rule applies to a publication year, and whether a record lookup is needed.
No parameter schema in public metadata yet.
public_domain_dayLists what enters the US public domain on January 1.
Lists what enters the US public domain on January 1.
No parameter schema in public metadata yet.
check_wallet_sanctionsChecks whether a crypto wallet is on the US Treasury (OFAC) sanctions lists.
Checks whether a crypto wallet is on the US Treasury (OFAC) sanctions lists.
No parameter schema in public metadata yet.
screen_sanctions_nameScreens a person, company, vessel or aircraft name against the OFAC SDN and Consolidated lists, including aliases and spelling variants.
Screens a person, company, vessel or aircraft name against the OFAC SDN and Consolidated lists, including aliases and spelling variants.
No parameter schema in public metadata yet.
check_property_riskOne-call natural hazard report for a US address: overall risk, FEMA flood zone, seismic risk, hazard ratings and federal disaster declarations.
One-call natural hazard report for a US address: overall risk, FEMA flood zone, seismic risk, hazard ratings and federal disaster declarations.
No parameter schema in public metadata yet.
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WALLET_PRIVATE_KEYsecretPrivate key of a wallet holding a little USDC on Base; pays a few cents per paid call. Free tools work without it.
MAX_PRICE_PER_CALLHard cap in USD per call (default 0.25)
Readme
Public Domain Check: MCP server
Is this book, film, song or artwork in the US public domain, and when does it enter it? This MCP server answers that question for AI agents. It's backed by:
- 2.38 million US Copyright Office registrations (1923–1977)
- 434,000 renewal records, linked to their registrations
- the US copyright term rules
Paid tools cost a few cents per call, paid in USDC through x402. There's no account or API key.
- Remote MCP (Streamable HTTP):
https://public-domain-check-production.up.railway.app/mcp - HTTP API and docs: https://public-domain-check-production.up.railway.app (llms.txt, OpenAPI)
Tools
Details
- Repository
- github.com/chomkaevan/public-domain-check-mcp
- Website
- public-domain-check-production.up.railway.app/copyright
- Package
public-domain-check-mcp- Transport
- STDIO, HTTP
- Auth
- Required
- Registry
- MCP registry, active