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Learn about Mnemonic’s APIs

Here you’ll find all the guides, resources, and references you need to start building with Mnemonic today.

Why use Mnemonic?

Learn about Mnemonic’s API and the problems it solves.

API Overview & Usage

How to use Mnemonic’s API

API FAQ

Answers to our most frequently asked questions

Tutorials

See examples of Mnemonic’s API in action

Browse API by Product

Foundational API

An NFT data foundation that gives you access to every NFT datapoint imaginable.

Transfer Insights (Pricing Attribution)

Enables you to get accurate pricing attribution and details on transfer events for standard and complex transactions. Data returned also indicates transfer type, whether the transfer was originated on a marketplace, the wallet and contract addresses involved, and all values transacted (both by the token type and aggregated normalized to ETH value at the time of the transaction).
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Tokens

The Tokens Service provides the ability to get NFTs by contract, minter, and owner (plus spam labels and the ability to filter out spam or filter by trait). It also provides the ability to retrieve summaries of a specific NFT’s traits, or retrieve owners of a given token and the quantity owned.
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Contracts / Collections

The Contracts Service provides the ability to get details about smart contracts, including the decoded type and metadata. This allows you to get full details about any NFT collection.
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ENS

The ENS Service provides the ability to query ENS Names by wallet address mappings and vice-versa. It also provides the full historical records of ENS names associated with a wallet address (or vice-versa).

Blockchain

The Blockchain Service provides the ability to query basic primitives of the Ethereum blockchain (such as blocks, transactions, logs, etc).
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Transfers (deprecated)

The Transfers Service provides the ability to get transfer events by various criteria. Deprecated - we recommend using Transfers Insights instead.
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Collection Analytics API

The easiest way to get deep, granular data on collection performance and chart trends with a single API call. Enable NFT discovery, show trends and build predictive models, or power your marketplace.

Collections

The Collections Service provides the ability to get aggregated collection and owner statistics as a time-series. Explore owners of a collection, token supply, and top collections by price, sales volume, and count. In addition, this service can retrieve summaries of all NFT traits within a given collection.
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Pricing

The Pricing Service provides the ability to get real time pricing and sales volume information for a collection.
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Wallet Intelligence API

Everything you need to build an intelligent, secure, and personalized NFT wallet or portfolio experience.

Wallets

Spam labels and spam filtering-enabled endpoints that enable you to get NFTs, transfers, and collections by wallet.

Marketplace API - BETA

Instantly access off-chain activity such as listings, offers, bids, and floor prices across a range of marketplaces, giving your users a complete picture of market activity at a wallet, collection, or NFT level.

Marketplace activity - BETA

Enables you to retrieve details on activity such as listings, offers, and bids on NFTs across various marketplaces filtered by various parameters. Currently covers all OpenSea activity, with more marketplaces coming soon!
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