The real catalog of tools for AI agents

No longer listed separately (still callable): public provenance evidence for art collections.

Art provenance intelligence — 282K-node knowledge graph with cited answers and honest gaps.

Now part of GAIP Witness: verifies GAIP receipts; evidence packs and incident bundles.

Now part of GAIP developer checks: diagnoses failed agent or API calls (gaip_diagnose).

Now part of GAIP Witness: records a task outcome and caller-supplied costs.

Now part of GAIP developer checks: compares supplier snapshots and watches for change.

Witness: agreed terms, delivery checks, signed receipts, dispute bundles and evidence packs.

Now part of GAIP Witness: tests supplier claims and compares them with published metadata.

Now part of GAIP Witness: records a buyer's request and checks what was delivered.

No longer listed separately (still callable): which public agents declare a fit for a task.

Developer checks and Agent Observatory: A2A, MCP and OpenAPI checks with a dated change log.

Listing Observer preview: a shop product page as clean data, with source checks and price history.

Four tools to check, watch, diagnose and verify AI agents and MCP servers. Free, read-only.

Search art research, estimate commissions, and prepare company intelligence purchases via x402.

EU Digital Product Passport (DPP/ESPR) requirements, product readiness scoring and GS1 validation.

Patent search, USPTO data, patent landscape & pgvector prior-art search for agents.

Harvard Art Museums MCP.

Art MCP — Metropolitan Museum of Art Collection API (free, no auth)

Art-tourism data for AI agents: biennales, art fairs, museums, layover itineraries with 2026 facts.

Original art from galleries and artists: semantic search, provenance, live availability.