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Walrus

walrus.xyz

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Spec score 7.6 #16 of 25 in Decentralized Storage Services

What it is

Walrus is a verifiable data platform for storing and managing data across apps, providers, and agents. Its decentralized storage protocol is coordinated onchain through Sui. Storage costs $0.023/GB/month, paid in WAL, with SUI used for transaction gas; stored data expires when its paid duration ends. Walrus Memory is intended to give AI agents persistent, portable memory across apps and sessions. It supports semantic remember and recall, automatic fact extraction, and generated answers grounded in stored memories. Listed integrations include native MCP support, plugins for OpenClaw and NemoClaw, and compatibility with major LLMs. Developers get TypeScript and Python SDKs, a relayer, smart contract, indexer, and dashboard. Memories are encrypted before storage and decrypted only for an authorized signed request; Sui contracts enforce ownership and programmable access, including scoped delegation. The separate Walrus Console is in a closed, invite-only Mainnet beta, with each space limited to 5 GB and five folders and uploads capped at 100 MiB. Walrus Memory has a launch-period free plan, with usage limits that may change.

Spec sheet

Founded
2024Read 28 Sep 2026 · walrus.xyz
Maker
Walrus was created by Mysten Labs, the team behind Sui.Read 4 Oct 2026 · walrus.xyz
Agent integrations
Walrus Memory lists native MCP support, first-party plugins for OpenClaw and NemoClaw, and compatibility with major LLMs.Read 4 Oct 2026 · walrus.xyz
Console availability and limits
Walrus Console is in a closed, invite-only Mainnet beta; each space holds up to 5 GB and five folders, with uploads capped at 100 MiB.Read 4 Oct 2026 · docs.wal.app
Developer support
Walrus Memory provides TypeScript and Python SDKs, a relayer, smart contract, indexer, and dashboard.Read 4 Oct 2026 · docs.wal.app
Encryption
Console encrypts files client-side with Seal before upload, stores ciphertext, and does not see plaintext or decryption keys.Read 4 Oct 2026 · docs.wal.app
Failure tolerance
Walrus states that its decentralized storage design can remain resilient even if two thirds of nodes fail.Read 4 Oct 2026 · walrus.xyz
Memory access control
Sui smart contracts enforce ownership and programmable access rules, and owners can grant scoped delegate access to agents, users, or services.Read 4 Oct 2026 · docs.wal.app
Memory encryption
Walrus Memory encrypts memories before storage and decrypts them only when an authorized signed request retrieves them.Read 4 Oct 2026 · walrus.xyz
Memory operations
Walrus Memory supports semantic remember and recall, automatic fact extraction, and AI-generated answers grounded in stored memories.Read 4 Oct 2026 · docs.wal.app
Memory purpose
Walrus Memory gives AI agents persistent, portable memory across apps and sessions.Read 4 Oct 2026 · docs.wal.app
Small-file cost limit
Each blob carries fixed metadata overhead, and the docs recommend using Walrus Quilt to batch small files and reduce that overhead.Read 4 Oct 2026 · docs.wal.app
Storage expiry
Walrus storage is time-bound and data expires when its paid storage duration runs out.Read 4 Oct 2026 · docs.wal.app
Storage pricing
Storage is priced at $0.023/GB/month and paid in WAL, with SUI used for transaction gas.Read 4 Oct 2026 · docs.wal.app
Underlying network
Walrus is a decentralized storage protocol coordinated onchain through Sui.Read 4 Oct 2026 · docs.wal.app
What it is
Walrus is a verifiable data platform for storing and managing data across apps, providers, and agents.Read 4 Oct 2026 · walrus.xyz

Plans and prices

Walrus Memory (launch period) Free Usage limits apply; pricing may evolve over time Read 4 Oct 2026 · walrus.xyz

Every Walrus plan and price →

Strong points and limits

Strong points

  • Supports semantic memory recall and automatic fact extraction.
  • Offers TypeScript and Python SDKs.
  • Encrypts memories before storage.
  • Provides scoped delegation through programmable access rules.

Limits

  • Stored data expires when paid storage duration ends.
  • Console access is closed and invite-only.
  • Console uploads are capped at 100 MiB.
  • Small blobs carry fixed metadata overhead.

Who it suits

Walrus Memory may suit developers building AI agents that need portable memory and controlled access across apps or sessions. The Console’s invite-only beta and per-space limits matter to anyone evaluating its storage interface.

Verdict

Walrus pairs decentralized storage with agent-focused memory and access controls. Consider the time-limited storage model, current Console restrictions, and changing free-plan limits before relying on it.

Where Specifiction places it

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