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Moralis

Moralis provides aggregated data APIs and notifications for blockchain applications. Integration requires coverage, pagination, freshness and provenance checks, plus continuity planning and duplicate controls. Products distinguish chain records from derived values and retain references to reconcile results. An ordinary RPC endpoint does not automatically reproduce the provider’s asset indexes or historical datasets.

Written by Isaac GonzálezUpdated October 11, 2026

Key takeaways

  • Moralis exposes network data through APIs simplifying aggregated queries.
  • Balances, history and events need interpretation for the network and source used.
  • Applications remain responsible for freshness, permissions and error handling.

What is Moralis?

Moralis provides APIs presenting aggregated blockchain data to applications. Balances, activity and metadata can be queried without building every required index from scratch. This data layer serves a different purpose from RPC access to functions exposed directly by a blockchain node.

Coverage depends on network and endpoint. Similar formats across chains do not imply uniform availability of every field, history or asset type. Product scope should be checked against documented responses and limits rather than assuming one query covers all networks or every category of asset.

How it works

Integrations use credentials and endpoints or SDKs to request data. Responses may be paginated and contain derived information such as asset classifications or market values. Applications need to understand each field and avoid treating estimates as balances verified directly against a contract.

Streams delivers notifications about configured activity. Receivers distinguish delivery tests from operational events, verify authenticity and handle retries. Confirmation policies and duplicate controls remain product responsibilities even when the provider manages observation of the underlying chain and delivery of its notifications.

What Moralis offers

A portfolio dashboard can display account assets and movements across supported networks. Its model retains network, contract and units to avoid combining assets sharing a symbol. Interfaces should also handle missing metadata, unwanted tokens and unreliable price or classification information.

For reconciliation, aggregated queries can be checked against transaction and block references where necessary. Pagination cursors and checkpoints support complete historical recovery. Notifications may accelerate view updates but should not replace the ability to reconstruct that view after lost deliveries or an application restart.

Limitations and selection criteria

Moralis introduces commercial and data dependencies. Costs depend on endpoints, volume and plan; quotas and pricing should be checked during sizing. Historical figures should not become production budgets, nor should every feature be assumed to carry the same support level.

An RPC fallback does not automatically reproduce indexed balances, histories or metadata. Continuity requires deciding which data to retain, what can be rebuilt and which functionality degrades during incidents. Compare this effort with operating a custom indexer and with the product's actual freshness requirements.

Also known as

  • Moralis Web3 API
  • Moralis Auth
Development at Metlabs

How we approach a project with Moralis

Development capabilities and use cases to assess how Moralis fits your product.

What we build with Moralis at Metlabs

  • Aggregated data APIs

    Asset and activity queries according to endpoint and network coverage.

  • Streams integration

    Receivers verifying notifications, distinguishing retries and reconciling results.

  • Historical recovery

    Processes completing paginated results and detecting missing or stale data.

  • Use case

    Multi-chain portfolio tracker

    An asset dashboard for covered networks with contract identification and incomplete-metadata handling.

  • Use case

    On-chain activity notifications

    App notifying users of transfers or events in real time using Moralis Streams, without continuously polling the chain.

Related content

Go deeper on Moralis

Other Metlabs pages that expand on this entry.

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