Category: NFT trading infrastructure / NFT data API / marketplace backend infrastructure
Summary: Reservoir is best cataloged as open-source NFT trading and data infrastructure rather than as a single NFT marketplace or consumer app. Its official API docs describe an all-in-one endpoint for building NFT applications, while the docs and GitHub org together reveal the real scope: aggregated marketplace execution, orderbook creation and cross-posting, NFT data APIs, event streams, versioned API surfaces, and open-source components for indexing, relaying, UI kits, and marketplace construction. In practice, Reservoir looks like a marketplace backend and liquidity/data abstraction layer for developers building NFT products across many EVM chains.
What it does:
Provides APIs for NFT data such as prices, metadata, ownership, collection statistics, and real-time floor / top-bid events
Lets developers buy tokens, accept bids, create their own orderbooks, and cross-post bids and asks to major marketplaces
Exposes open-source infrastructure and developer tooling through public repos including UI kits, relayers, indexers, and marketplace examples
Supports multi-chain NFT application development across a broad set of EVM chains
Maintains versioned APIs to preserve backwards compatibility as endpoints evolve
Key claims:
The API overview says Reservoir is an “all-in-one endpoint for building NFT applications”
The docs say developers can buy tokens and accept bids from major marketplaces, create their own orderbooks with advanced order types, and cross-post orders to other major marketplaces
The docs say Reservoir supports over 30 EVM chains
The docs emphasize granular token price data, collection events, ownership and stats data, royalty data, and aggregated order data for execution
The GitHub org describes Reservoir as “Open-source NFT trading infrastructure enabling the next generation of NFT products” and exposes repos for ReservoirKit, a relayer, public indexer code, and open-source marketplace implementations
Whitepaper: No canonical standalone Reservoir whitepaper or litepaper was surfaced in this pass. The strongest primary sources were the official API docs and the Reservoir GitHub organization; see ../whitepapers/reservoir-primary-sources-2026-04-27.md.