# Gripp excess directory

> Gripp publishes a public directory of excess and overstock IT hardware and license classes. The directory names classes and watchlist manufacturers. It does not list inventory, prices, or counts.

This file is generated from Gripp's excess-loop class list and manufacturer watchlist. Update the directory when those sources change.

## Classes
- [Switching](https://gripp.run/excess/switching): switching hardware. No stock, prices, or counts.
- [Wireless](https://gripp.run/excess/wireless): wireless hardware. No stock, prices, or counts.
- [License](https://gripp.run/excess/license): software licenses. No stock, prices, or counts.
- [Optics](https://gripp.run/excess/optics): optics hardware. No stock, prices, or counts.

## Watchlist manufacturers
- [Cisco Switching](https://gripp.run/excess/switching/cisco): watchlist manufacturer under switching hardware. Not a catalog.
- [Meraki Switching](https://gripp.run/excess/switching/meraki): watchlist manufacturer under switching hardware. Not a catalog.
- [Cisco Wireless](https://gripp.run/excess/wireless/cisco): watchlist manufacturer under wireless hardware. Not a catalog.
- [Meraki Wireless](https://gripp.run/excess/wireless/meraki): watchlist manufacturer under wireless hardware. Not a catalog.

## Buyers
Request a quote after sign-up: https://gripp.run/signup

## Suppliers
Register and send what you can sell: https://gripp.run/vendor/register

## Example
Example, not a live listing: Offer for an example part is subject to availability.

## Data center and critical power gear

> Long-lead surplus and cancelled gear. A match needs a complete spec card. This directory does not list inventory, prices, or counts.

Index: https://gripp.run/excess/data-center
- [Pad-mount transformers](https://gripp.run/excess/data-center/pad-mount-transformers)
- [Substation transformers](https://gripp.run/excess/data-center/substation-transformers)
- [MV switchgear](https://gripp.run/excess/data-center/mv-switchgear)
- [Generators](https://gripp.run/excess/data-center/generators)
- [UPS](https://gripp.run/excess/data-center/ups)
- [Busway](https://gripp.run/excess/data-center/busway)
- [Cable, conduit, and temporary power](https://gripp.run/excess/data-center/cable-conduit-temp-power)

Required spec card: kVA or MVA, primary voltage, secondary voltage, impedance, cooling class, UL listing or IEEE C57, factory test report, recent NETA or DGA test, warranty or refurbisher, ownership title, storage records, storage location.

Lead-time alert sign-up: https://gripp.run/signup?alert=lead-time

Example, not a live listing: Offer for an example part is subject to availability.

## Public API

> Buyers' agents can search blind excess inventory and post requirements. Supplier identities and floor prices are not returned to buyers.

Base URL: https://grippai-production.up.railway.app/v1
OpenAPI docs: https://grippai-production.up.railway.app/v1/docs
Human docs and SDK snippets: https://gripp.run/docs/api
MCP endpoint: https://grippai-production.up.railway.app/v1/mcp

Authenticate with Authorization: Bearer or X-Api-Key. Keys are hashed, scoped, rate limited, and revocable. Send Idempotency-Key on POST requests.

REST:
- POST /requirements and GET /requirements for buyers
- POST /listings, POST /listings/bulk, and GET /listings for inventory. Bulk accepts JSON or CSV.
- GET /matches
- POST /quotes and GET /quotes

MCP tools: search_inventory, post_requirement, list_matches, request_quote.

Webhooks an organization can register: match.created, requirement.matched, listing.created, quote.updated. Deliveries are HMAC-SHA256 signed, retried with exponential backoff, logged, and can be replayed. POST /webhooks/{id}/ping sends a test event.

Categories are open. Examples include transformers, switchgear, gensets, UPS, memory, storage, optics, DC switches, and power semiconductors.