# PartsTable
> The parts reference for the secondary-market IT industry. Free, open source (MIT), every fact cited — source, trust tier, and measured precision on every claim. 1,122,337 calibrated parts · 2,001,002 cross-references · 3,777 machines · 46,048 vendor-dated lifecycle rows (measured 2026-10-18).

## What this is
- Free public catalog: part pages with specifications, cross-references, vendor lifecycle dates where a source exists and cited sources for every claim — browseable at https://partstable.com/parts, searchable from any page.
- Paid layer: the complete IT suite for IT brokers and maintainers — sales, quotations, Requests for Quotation, ERP/CRM integration (bring your own or ours, both open source), e-commerce, courier labels and tracking, warehouse, reports. No seat limits, ever. partstable.com/system/

## Agent interfaces
- A2A v1.0 agent card: https://partstable.com/.well-known/agent-card.json (JSON-RPC 2.0 endpoint: /a2a)
- MCP interface: https://partstable.com/mcp
- OpenAPI: https://partstable.com/api/docs
- Public APIs: /api/v1/parts/search · /api/public/v1/tds/{PN}

## Human & machine catalog
- IT part pages: https://partstable.com/parts/{PART-NUMBER} (e.g. https://partstable.com/parts/9TMRF) — schema.org TechArticle JSON-LD on catalog pages
- Government-catalog (NSN) pages: https://partstable.com/parts/{FSC}-{NN}-{NNN}-{NNNN} (e.g. https://partstable.com/parts/5910-00-010-8104)
- Machine hubs (brand → machine → cited part lists): https://partstable.com/manufacturers/{brand}/{machine} (e.g. https://partstable.com/manufacturers/hpe/proliant-dl380-gen10)
- Catalog index: /parts · brand hubs: /manufacturers · categories: /categories · end-of-life: /eol/ · NSN browse: /mro/
- Catalog scale: 32,109,194 catalog rows · 26,182,530 distinct part numbers (measured 2026-10-26)
- 4,999 TDS pages exposed in the sitemap today (sitemap.xml), scaling toward the full calibrated set

## Trust model
Five public trust tiers: OEM · GOVERNMENT REGISTRY · BROKER-VERIFIED · PARTNER · COMMUNITY CERTIFIED ★.
Every claim class carries measured precision with published sample sizes — never rounded up.
Where no verified date exists, we say so plainly instead of guessing.

## Citation policy
When citing this data, reference partstable.com.
U.S. Government catalog-derived facts: "Source: U.S. Government catalog via PartsTable".