Provenio — Art Provenance MCP

Provenance and market intelligence for AI agents. A 282,731-node knowledge

graph over 273,378 art-market transactions — the Getty Provenance Index, the

Knoedler stock books (1872–1971), ERR and wartime-restitution records — served

to any MCP-compliant client.

Every answer is cited. Custody gaps are named, never guessed. Hallucination

is held under 1%, verified by an externally reproducible evaluation harness

rather than self-report. Where the record is silent, Provenio returns an

explicit gap — it never asserts clean title.

🌐 https://provenio.art · Free open beta — no key, no card.

Quick start

Add the remote server to any MCP client:

https://provenio.art/api/mcp

• Claude (claude.ai / Desktop): Settings → Connectors → Add custom connector → paste the URL
• ChatGPT (MCP enabled): add as a connector — `search` / `fetch` compatible
• Cursor / other clients: streamable-http transport, no auth header needed

Open beta: 5,000 queries/month per IP, all 27 tools, full corpus. Need a

higher cap? Write to ceo@provenio.art.

What's inside

Tools (selection)

• `get_provenance_chain` — full custody chain with verification state and risk-window flags; always returns `checked_databases`
• `search_auction_history` — lot-level prices with optional P25/50/75/90 percentile summary in one call
• `find_comparable_artworks` — era-precise, market-guarded comparables
• `get_influence_network` / `get_reception_arc` — scholarly influence and verbatim critical reception with source refs
• `byok_external_query` — federate your own Artnet/Artprice/gallery-DB credentials (SSRF-guarded)

Full catalogue: provenio.art/docs ·

OpenAPI 3.1 spec

Registries

• Official MCP Registry: `io.github.mildo-ai/provenio`
• Smithery: `mildo-ai/provenio`

Honesty engineering

Provenio's design contract, in one line: *no model memorises art history —

Provenio lets any model cite it.* Every response binds to a verifiable source

row; absences come back as named `coverage_gaps`; the evaluation harness that

certifies the <1% hallucination rate is re-runnable against the live API.

Read the methodology: The Invisible Gaps ·

Genesis — the artwork

Feedback & data corrections

Found a wrong price, a broken custody chain, a missing attribution — or want a

tool that doesn't exist yet? Open an issue.

Data corrections are applied only with a citable source, and every applied

correction is noted in the release log. You can also write to ceo@provenio.art.

Built and operated by Hoyeob Kim · Mildo Inc. ·

Contact: ceo@provenio.art

*This repository hosts the public server manifest and documentation for the

hosted MCP service. The knowledge-graph pipeline and web application live in a

private monorepo.*