Indexer API

Query blockchain data with powerful filtering and sorting capabilities.

Analytics API

Track user engagement, retention, and transaction metrics for your applications.

Metadata API

Store and retrieve metadata for tokens, collections, and other assets.

Transactions API

Submit and manage blockchain transactions with optimized gas fees and batching.

Marketplace API

Create and manage orders for NFT marketplaces and exchanges.

Node Gateway

Access high-performance RPC nodes with automatic scaling and failover.

Indexer Gateway

Query blockchain data across multiple chains with a single API request with the Indexer Gateway

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Authentication

Most Sequence APIs require authentication using either:

  • Project Access Key: For client-side requests, these are listed as public.
  • Service Token: For server-side requests that require elevated permissions, these require passing a secret bearer token and listed as secret.

You can generate these credentials in the Sequence Builder dashboard.

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Rate Limits

API rate limits vary by tier and available MAUs. Check your project settings in the Sequence Builder dashboard for your specific limits.