Best NFT collection metadata API: Moralis, Alchemy, OpenSea benchmarked
NFT APIsAlchemy
Trails75.0 %
- p99
- 75.0%
- rank
- #3
- samples
- 6,002
OpenSea
Leads95.2 %
- p99
- 95.2%
- rank
- #2
- samples
- 4,312
Alchemy vs OpenSea
OpenSea leads on the only live benchmark. OpenSea wins on Best NFT collection metadata API (95.2% vs 75.0%).
Alchemy
Web3 infrastructure provider offering NFT API, RPC nodes, and blockchain data APIs. Multi-chain EVM coverage.
OpenSea
NFT marketplace and data API. Multi-chain support for ERC721/ERC1155 collection metadata and trading data.
Side by side measurements
Frequently asked questions
Alchemy vs OpenSea: which one is better?
Alchemy and OpenSea are compared on 1 shared OpenChainBench benchmarks. OpenSea leads on Best NFT collection metadata API. See the live table on this page for every metric.
Which is more reliable, Alchemy or OpenSea?
On the Best NFT collection metadata API benchmark, OpenSea leads at 95.2% versus Alchemy at 75.0%. Live measurement is updated continuously by the OpenChainBench harness.
How is the Alchemy vs OpenSea comparison measured?
Every benchmark on this page uses the same open methodology, published at https://openchainbench.com/methodology. Data is CC-BY-4.0. Measurement harnesses are MIT-licensed.
How this pair was selected
Auto-generated pairs require: both providers in the same benchmark for seven consecutive days, at least 1000 samples per provider, observable third-party search demand, and a public /products/[slug] page on OCB. Editorially curated pairs (like this one) may publish early when search demand is high and data is accruing — panels with fewer than 100 samples are shown as provisional. The full pair ledger is versioned in the public repo.