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

Axis	Coverage
Knowledge graph	282,731 nodes · CIDOC-CRM / PROV-O aligned
Market transactions	273,378 (99,892 with verified inflation-adjusted prices)
Provenance corpus	Getty Provenance Index · Knoedler 1872–1971 · ERR · curated wartime restitution
Risk flagging	Nazi-era 1933–1945 (HEAR Act) · colonial-era · dealer-fraud windows
Non-Western depth	Korean Dansaekhwa (Kim Whanki, Lee Ufan, Park Seo-Bo) market + exhibition histories
Tools	27 typed tools · 15 prompts — search, provenance chains, comparables, influence networks, reception arcs, BYOK federation

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.

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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.