Provenio — Art Intelligence
REMOTE · PROVENIO.ART · SCANNED AUG 3
Art provenance intelligence — 282K-node knowledge graph with cited answers and honest gaps.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability78
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 4764 tokens (~176/item across 27 items; 27 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage99
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 97% of tool parameters carry a description.Partial
- Structured output schemas are declared (7% of tools); any adoption earns full credit.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · provenio.art
claude mcp add --transport http mildo-ai-provenio https://provenio.art/api/mcp
[mcp_servers.mildo-ai-provenio] url = "https://provenio.art/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"mildo-ai-provenio": {
"type": "remote",
"url": "https://provenio.art/api/mcp",
"enabled": true
}
}
} openclaw mcp add mildo-ai-provenio --url https://provenio.art/api/mcp --transport streamable-http
mcp_servers:
mildo-ai-provenio:
url: "https://provenio.art/api/mcp" {
"mcpServers": {
"mildo-ai-provenio": {
"type": "http",
"url": "https://provenio.art/api/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Jul 26 +3
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 28 Jul 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 69
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Probed https://provenio.art/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=provenio.art | CN=YR1,O=Let's Encrypt,C=US | 23 Jun 2026 | 21 Sept 2026 | RSA 2048 | SHA256-RSA | 50ed6d941c6a7a336031a3b4d0dc3f42582 |
| SANs: provenio.art | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
DNSSEC insecure
Validation of provenio.art. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| art. | present | 29485, 32002 | 8, 8 | Verified |
| provenio.art. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
| content-security-policy | default-src 'self'; script-src 'self' 'unsafe-eval' https://va.vercel-scripts.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com data:; img-src 'self' data: https: blob:; connect-src 'self' https://va.vercel-scripts.com https://api.lemonsqueezy.com; frame-ancestors 'none'; base-uri 'self'; form-action 'self' https://provenio.lemonsqueezy.com; object-src 'none'; upgrade-insecure-requests |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://provenio.art/api/mcp | Verified | 200 | |
| http (plaintext) | http://provenio.art/api/mcp | HTTPS enforced | 308 | https://provenio.art/api/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
byok_external_query ~224
Cost: ~variable. Forward a JSON HTTP request to YOUR own external API endpoint and return the response. Use when: you need to query a third-party art-market source (Artnet/Artprice/your own gallery DB) that we do not host. Auth: pass your API key in MCP request header 'x-byok-auth' — we forward it as Authorization to your endpoint. Allowed hosts: must match an HTTPS URL on the public internet (no internal IPs, localhost, file://, etc). Returns: {status, body, headers, fetched_at, source_url} — body parsed if JSON, raw if not. Logged for your own audit trail; never trained on. We do NOT cache or persist response bodies.
| Name | Type | Req | Description |
|---|---|---|---|
| body_json | object | — | Optional JSON body for POST requests. |
| endpoint_url | string | yes | Full HTTPS URL of your external API. Required. |
| method | string | — | HTTP method (GET or POST). Default GET. |
| timeout_ms | number | — | Per-request timeout in ms (max 20000). |
No output schema declared.
No examples provided.
compare_career_patterns ~196
Cost: ~4s. Side-by-side career trajectory comparison for two artists. Returns full trajectory data for each + a structured comparison: pattern overlap score, career stage delta, exhibition/market delta, interpretation, and recommendation. Use when: gallery wants to pitch an emerging artist by showing they mirror a validated comparable's early career. Use when: curator needs narrative evidence that artist A is at the same inflection point artist B was at in year X. Do NOT use when: you need data on one artist — use get_career_trajectory instead. Do NOT use when: you want to discover emerging artists — use find_emerging_artists_by_pattern instead.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id_1 | string | yes | First artist — person ID slug or 'person:...'. |
| artist_id_2 | string | yes | Second artist — person ID slug or 'person:...'. Use a well-documented historical artist as the benchmark. |
No output schema declared.
No examples provided.
fetch ~100
Fetch the full Provenio record for an id returned by `search` (person:… or artwork:…). Returns {id, title, text, url, metadata} where text is a readable provenance/market/influence summary. (ChatGPT connector document-fetch tool — wraps get_artist / get_artwork.)
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | An id from search results, e.g. 'person:jacob-jordaens' or 'artwork:...'. |
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | — |
| metadata | object | — | — |
| text | string | yes | — |
| title | string | yes | — |
| url | string | yes | — |
No examples provided.
find_comparable_artworks ~201
Cost: ~2s. Comparable set. EITHER artwork_id seed → similar works, OR artist_id seed → peer artists. Not for same-artist lot history (use search_auction_history).
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | — | Seed artist person ID slug or 'person:...'. Returns peer artists by era/polity/tradition overlap. Mutually exclusive with artwork_id. |
| artwork_id | string | — | Seed artwork ID slug or 'artwork:...'. Mutually exclusive with artist_id. |
| iconographic_subject | string | — | Optional subject keyword (artwork_seed mode only). |
| limit | integer | — | — |
| medium_keyword | string | — | Medium keyword (artwork_seed mode only). |
| patron_class | string | — | Patron class keyword (artwork_seed mode only). |
| period | string | — | Period concept ID or keyword. |
| years_back | integer | — | Lookback window from today, default 15. |
No output schema declared.
No examples provided.
find_emerging_artists_by_pattern ~321
Cost: ~3s. Discover emerging artists whose current KG footprint matches a historical career pattern. Patterns: A=institutional_escalation, B=curator_championing, C=movement_anchor, D=late_market_discovery, E=diaspora_rediscovery. Returns ranked candidates with confidence score, exhibition/market data, and signal summary. Use when: gallery wants a shortlist of artists at an early inflection point matching a proven pattern. Use when: curator is building a thematic exhibition and wants artists at the right career stage. Use when: collector wants names not yet on the market radar. Do NOT use when: you already have a specific artist in mind — use get_career_trajectory instead. Do NOT use when: you want to compare two artists — use compare_career_patterns instead. Coverage note: results depend on exhibition data ingested; artists with no exhibition records won't appear.
| Name | Type | Req | Description |
|---|---|---|---|
| birth_year_after | number | — | Filter to artists born after this year. Default varies by pattern. |
| limit | number | — | Max candidates to return (1–30). Default 10. |
| min_confidence | number | — | Minimum confidence score (0–1). Default 0.35. |
| pattern | string | yes | Pattern to search: 'A_institutional_escalation', 'B_curator_championing', 'C_movement_anchor', 'D_late_market_discovery', or 'E_diaspora_rediscovery'. Single letter also accepted (e.g. 'A'). |
No output schema declared.
No examples provided.
find_galleries_by_artist ~131
Cost: ~1s. Find all galleries that represent (currently or formerly) a specific artist. Returns: ordered list of representations (current first, then deceased_estate, then former), with gallery tier/city/country and period. Use when: verifying primary-market representation for valuation or attribution context. Use when: building artist-centric outreach (which galleries control supply). Use when: tracking representation history for a deceased artist's estate.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | yes | Person ID slug or 'person:...'. Required. |
| include_former | boolean | — | Include former representations (default true). |
No output schema declared.
No examples provided.
get_artist ~117
Cost: ~1s. Composite artist profile — identity + reception + 1-hop influence in/out + education + market aggregates. SINGLE CALL USUALLY SUFFICIENT. Use when: you have an artist ID and need their full picture. Do NOT chain with get_influence_network unless you need depth > 1. Do NOT use for multi-artist comparison — use query_market_summary.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | yes | Person ID slug ('paul-gauguin') or full 'person:...' ID. Case-sensitive slug. |
No output schema declared.
No examples provided.
get_artwork ~88
Cost: ~1s. Composite artwork profile — metadata + Panofsky subjects + reception + custody + polity + transactions. SINGLE CALL USUALLY SUFFICIENT. Use when: you have an artwork ID. Do NOT chain with get_provenance_chain unless you need gap-risk flags specifically.
| Name | Type | Req | Description |
|---|---|---|---|
| artwork_id | string | yes | Artwork ID slug or full 'artwork:...' ID. |
No output schema declared.
No examples provided.
get_career_trajectory ~170
Cost: ~2s. Artist career trajectory analysis: milestones, career stage, pattern detection (A–E), and comparable historical artists who followed the same path. Career stages: PRE_MARKET → REGIONAL → CRITICAL_PHASE → MARKET_ENTRY → ESTABLISHED. Patterns: A=institutional escalation, B=curator championing, C=movement anchor, D=late market discovery, E=diaspora rediscovery. Use for: emerging artist discovery, gallery acquisition decisions, curator narrative building. Do NOT use for purely biographical queries — use get_artist instead.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | yes | Person ID slug or 'person:...'. Required. |
| include_comparables | boolean | — | Whether to include historical comparable artists (default true). Set false to reduce latency. |
No output schema declared.
No examples provided.
get_exhibition_history ~180
Cost: ~0.5s–1s. Exhibition history for an artist OR artwork. SINGLE CALL. Returns normalised exhibition records (exhibitions table) when available; falls back to knowledge-graph event nodes (raw_json scan) when the normalised table is empty. Coverage: 94 curated events for 20+ artists as of 2026-04-24. For artists with no data, returns actionable guidance including the exact CLI command to run artsy_exhibitions.py to ingest missing records. Always returns coverage_gaps and suggested_next_tools when data is sparse or absent.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | — | Person ID slug or 'person:...'. Mutually exclusive with artwork_id. |
| artwork_id | string | — | Artwork ID slug or 'artwork:...'. Mutually exclusive with artist_id. |
No output schema declared.
No examples provided.
get_gallery_artists ~139
Cost: ~1s. Get the represented-artist roster for a specific gallery. Returns: gallery metadata + ordered list of artists with exclusivity (exclusive/shared/former/deceased_estate), period, notes. Use when: preparing pitch context for a specific gallery (cold email, fair planning). Use when: validating whether artist representation overlap exists between two galleries. Do NOT use when: you only have the artist name — use find_galleries_by_artist instead.
| Name | Type | Req | Description |
|---|---|---|---|
| gallery_id | string | yes | Gallery ID slug or 'gallery:...'. Required. |
| include_former | boolean | — | Include former representations and deceased estates (default true). |
No output schema declared.
No examples provided.
get_influence_network ~110
Cost: ~2-3s. N-hop influence BFS. Use ONLY when depth>1 needed — get_artist already has 1-hop.
| Name | Type | Req | Description |
|---|---|---|---|
| direction | string | — | outgoing = who the seed influenced; incoming = who influenced the seed; both = union. |
| max_depth | integer | — | BFS depth. Default 2. Keep ≤3 unless needed — cost grows combinatorially. |
| seed_person_id | string | yes | Seed artist — person ID slug or full 'person:...'. |
No output schema declared.
No examples provided.
get_lineage_cluster ~86
Cost: ~1s. Formal teacher/student cluster (education_lineage). Use for academic lineage. For conceptual influence: get_influence_network.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | yes | Seed person ID slug or 'person:...'. |
| include_students | boolean | — | Include people who studied under the seed. |
| include_teachers | boolean | — | Include people the seed studied under. |
No output schema declared.
No examples provided.
get_movement_context ~156
Cost: ~0.5s. Concept node + linked artworks. Pass cross_tradition=true for hasFunctionalAnalog concepts (lotus↔rose). SINGLE CALL USUALLY SUFFICIENT. Use when: definitional context or iconography cluster. Do NOT use for artwork filters — use search_artworks.
| Name | Type | Req | Description |
|---|---|---|---|
| concept_id | string | yes | Concept ID slug ('period-dutch-golden-age', 'movement-impressionism', 'iconography-lotus-purity') or full 'concept:...' ID. |
| cross_tradition | boolean | — | If true, also return concepts linked via hasFunctionalAnalog for cross-tradition analogy queries. |
| limit | integer | — | Max linked artworks. Default 20. |
No output schema declared.
No examples provided.
get_provenance_chain ~133
Cost: ~1s. Custody timeline + gap-risk flags (Nazi, colonial, Russian Rev, Knoedler 1970-2009). Use only for deep due diligence — get_artwork already has basic custody.
| Name | Type | Req | Description |
|---|---|---|---|
| artwork_id | string | yes | Artwork ID slug or full 'artwork:...' ID. |
| period_end | integer | — | Restrict chain to custody periods overlapping this year or earlier (e.g. 1945). |
| period_start | integer | — | Restrict chain to custody periods overlapping this year or later (e.g. 1933 for Nazi-era slice). |
No output schema declared.
No examples provided.
get_reception_arc ~94
Cost: ~1s. Time-ordered reception claims for artist or artwork. Use for valence-shift narrative. Use query_reception_price_correlation if you also need price.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | — | Person ID slug or 'person:...'. Mutually exclusive with artwork_id. |
| artwork_id | string | — | Artwork ID slug or 'artwork:...'. Mutually exclusive with artist_id. |
No output schema declared.
No examples provided.
lookup_europeana ~161
Cost: ~0.5s. Search the Europeana cultural heritage corpus (~50M records from EU museums/archives) for art records. Use when: triangulating Provenio data against European museum holdings, or finding object records with images for a Western European artist. Returns: {total, items: [{title, creator, dataProvider, year, image_url, edm_url}]} Source: api.europeana.eu (public-domain Europe gateway, demo key embedded; users can supply own key via byok_external_query for high-volume).
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | — | Max records (1-50). |
| query | string | yes | Search query, e.g. 'pissarro paris 1897' or 'who:"Rembrandt"' |
No output schema declared.
No examples provided.
lookup_met_museum ~187
Cost: ~0.3s. Search the Metropolitan Museum of Art collection (free public API · ~480K objects) and optionally dereference an objectID. Use when: you need a museum-confirmed match for an artist or work, or want to triangulate Provenio data against Met holdings. Returns either {total, objectIDs[]} for a search OR a full object record if object_id supplied. Source: https://collectionapi.metmuseum.org/public/collection/v1 · zero PII, public domain images flagged.
| Name | Type | Req | Description |
|---|---|---|---|
| has_images | boolean | — | Filter to objects with images. Search-only. |
| limit | integer | — | Max objectIDs to return (1-50). |
| object_id | integer | — | Met objectID for full record dereference. |
| query | string | — | Free-text search (artist, title, keyword). Required if object_id not given. |
No output schema declared.
No examples provided.
lookup_wikidata_art ~204
Cost: ~3-8s. Run a SPARQL query against Wikidata (public, no auth) for art-related entities. Use when: you need cross-museum location data for an artist's works, or biographical data not in Provenio. Pattern: pass a SPARQL query string. Example below to get all Klimt artworks with current location. Returns: {total, bindings: [...]} — raw SPARQL JSON results format. Source: https://query.wikidata.org/sparql · 12-second SPARQL query timeout enforced.
| Name | Type | Req | Description |
|---|---|---|---|
| sparql | string | yes | SPARQL SELECT query. Example for Klimt's artworks with location: SELECT ?artworkLabel ?locationLabel WHERE { ?artwork wdt:P170 wd:Q34661. ?artwork wdt:P276 ?location. SERVICE wikibase:label { bd:serv… |
No output schema declared.
No examples provided.
query_market_summary ~157
Cost: ~2s. Per-artist market aggregates × reception × polity. Use for cross-artist comparison. Single artist deep profile: get_artist. Individual lots: search_auction_history.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | — | Specific artist. |
| era | string | — | Era substring (e.g. 'contemporary', 'modern'). |
| limit | integer | — | — |
| min_price_usd | integer | — | Min across max_usd_2024 → max_realized_price_usd → max_usd_nominal (whichever available). |
| polity | string | — | Polity name substring (e.g. 'French Republic', 'Qing'). |
| reception_register | string | — | Filter by the artist's latest reception register. |
No output schema declared.
No examples provided.
query_polity_dispersal ~227
Cost: ~2s. Polity-origin artworks now dispersed. Use for restitution/cultural-heritage analysis. For simple list: search_artworks.
| Name | Type | Req | Description |
|---|---|---|---|
| polity_id | string | yes | Polity ID slug or 'place:...' (e.g. 'benin-kingdom'). |
| rank_by_claim_priority | boolean | — | If true, add claim_priority_score to each row (seizure=3, unknown=2, gift/bequest=1; +1 if within collapse window) and sort DESC. Repatriation advocate use case. |
| years_after_collapse | integer | — | How many years after collapse to count as 'dispersal-adjacent'. Default 80 — Nazi-era (Third Reich, place:polity-nazi-germany) restitutions typically occur 50-70 years after 1945 (e.g. Klimt's Adele… |
No output schema declared.
No examples provided.
query_reception_price_correlation ~55
Cost: ~2s. Reception × price timeline for one artist. Combines get_reception_arc + price trend in one call.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_id | string | yes | Person ID slug or 'person:...'. |
No output schema declared.
No examples provided.
search ~100
Search the Provenio art-provenance knowledge graph (artists + artworks) by free text. Returns a ranked list of {id, title, url}. Pass an id to `fetch` for the full record. Use this as the entry point for any name/title lookup. (ChatGPT connector entry tool — wraps search_artists + search_artworks.)
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Free-text query — an artist name, artwork title, movement, or keyword. |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | — |
No examples provided.
search_artists ~254
Cost: ~0.4s. Shortlist person nodes by name/nationality/era. Returns [{id, display_name, birth_year, death_year, nationality, era}]. Use when: you have a name but no person ID. Try a partial name if exact match fails (e.g. 'Basquiat' not 'Jean-Michel Basquiat'). Do NOT use if: you already know the ID — call get_artist directly (one call). Returns person IDs in 'person:slug' format — pass these directly as the 'artist' parameter in search_artworks. STOP after this unless you need a specific artist's full profile.
| Name | Type | Req | Description |
|---|---|---|---|
| era | string | — | Substring match against era, e.g. 'baroque', 'modernism', 'contemporary'. |
| limit | integer | — | Max rows returned. Default 20. Check has_more to know if more exist. |
| nationality | string | — | Substring match, e.g. 'dutch', 'japanese', 'french'. Combined with other filters as AND. |
| query | string | yes | Free-text substring match on display_name and id (case-insensitive). Use empty string '' to browse by filters only. |
No output schema declared.
No examples provided.
search_artworks ~470
Cost: ~0.5s. Shortlist artworks by title/artist/medium/date, or risk-filter (provenance_risk, attribution_status). Returns summary rows. Use when: you need a list, not one work's detail. Do NOT use if: you know the artwork ID — call get_artwork (one call contains iconography + custody + polity + transactions). Do NOT chain multiple search_artworks calls for the same work — use get_artwork after you have the ID. Do NOT put artist names in the query field alone — use the artist filter with the person ID slug (e.g. 'person:jean-michel-basquiat'). If title is ambiguous, combine query + artist filter. Title match is substring (ILIKE %query%). For best results, use the artist filter rather than embedding artist name in query. Note: when provenance_risk filter is used, returns coverage_gaps: ['no_custody_history'] when the matching custody record pool is smaller than expected — interpret this as a data-density limitation, not a clean result. STOP after this unless you need deep detail on ONE artwork.
| Name | Type | Req | Description |
|---|---|---|---|
| artist | string | — | Filter by creator — person ID slug ('picasso') or full 'person:...' form (e.g. 'person:jean-michel-basquiat'). Obtain this from search_artists if needed. |
| attribution_status | string | — | Filter by authorship status. 'disputed' surfaces contested attributions; 'workshop' surfaces 'Workshop of X' works; 'anonymous' surfaces unattributed; 'single_author' surfaces those with confirmed cr… |
| date_from | integer | — | Earliest production year (inclusive). |
| date_to | integer | — | Latest production year (inclusive). |
| limit | integer | — | Max rows. Default 10. |
| medium | string | — | Substring match on medium, e.g. 'oil', 'bronze', 'watercolor'. |
| provenance_risk | string | — | Surface artworks whose custody_history matches a risk profile. Use for bulk due-diligence audits. |
| query | string | yes | Substring match on title and id (ILIKE %query%). Empty '' browses all. Do NOT embed artist names here — use the artist parameter instead. |
No output schema declared.
No examples provided.
search_auction_history ~314
Cost: ~0.7s. Auction transaction rows with optional percentile_summary=true to also return P25/50/75/90 + realized-vs-estimate in ONE call. Use when: need lot-level prices OR percentile stats. Do NOT use if: you only need per-artist aggregates — use query_market_summary. SINGLE-CALL FRIENDLY — combine filters + percentile_summary for appraisal work.
| Name | Type | Req | Description |
|---|---|---|---|
| artist_name | string | — | Artist name substring, e.g. 'Basquiat', 'Gauguin'. Case-insensitive. |
| artwork_id | string | — | Filter by specific artwork ID slug or full 'artwork:...'. |
| date_from | string | — | ISO date or year, e.g. '1990' or '1990-05-01'. |
| date_to | string | — | ISO date or year for upper bound. |
| limit | integer | — | Max rows. Default 10. |
| medium_keyword | string | — | Substring match against artwork medium (joins via artwork_id). E.g. 'oil', 'bronze', 'watercolor', 'print'. |
| min_price_usd | integer | — | Minimum price in USD. Uses price_usd_2024_cpi when available, else nominal USD. 1e6 = 1 million. |
| percentile_summary | boolean | — | If true, also return P25/P50/P75/P90 percentiles and avg realized/estimate ratio over the filtered set. Use for appraisal / comp-set analysis. |
No output schema declared.
No examples provided.
search_galleries ~189
Cost: ~1s. Search galleries by name, tier, country, or city. Tiers: mega (Gagosian/Zwirner level), major (international program), boutique (focused), emerging (newer). Use when: identifying which galleries operate in a specific market or tier band. Use when: building a B2B target list (galleries by region/tier). Do NOT use when: you want to know which gallery represents a specific artist — use find_galleries_by_artist instead.
| Name | Type | Req | Description |
|---|---|---|---|
| city | string | — | City name (case-insensitive partial match). |
| country | string | — | ISO 2-letter code (e.g. 'US', 'GB', 'KR'). |
| limit | number | — | Max results (1–100). Default 20. |
| query | string | — | Free-text search across gallery name and id. |
| tier | string | — | — |
No output schema declared.
No examples provided.