generated: '2026-08-24'
method: searched
source: >-
  npm registry metadata (registry.npmjs.org), the bcnmy GitHub organization, and the
  Biconomy SDK reference at https://docs.biconomy.io/sdk-reference. Versions and dates read
  from registry.npmjs.org/<pkg> dist-tags + time on 2026-08-24.
provider: Biconomy
providerId: biconomy
description: >-
  First-party Biconomy client libraries. AbstractJS (@biconomy/abstractjs) is the current,
  actively-released TypeScript SDK and the one the docs and llms.txt point at. The @biconomy/*
  v3/v4 family (account, bundler, paymaster, modules, common, node-client, core-types, use-aa)
  and @biconomy/sdk are the superseded generations, all frozen since 2024/2025 — recorded here
  because a consumer landing on them from an old tutorial cannot otherwise tell they are dead.
  The @biconomy-devx/* scope is Biconomy's own pre-release channel, not a separate vendor.
  No first-party Python, Go, Java, Ruby, .NET or Rust client is published; the REST
  Supertransaction API is the documented path for non-TypeScript consumers.
languages:
  - TypeScript
  - JavaScript
packages:
  - name: '@biconomy/abstractjs'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/abstractjs
    repository: https://github.com/bcnmy/abstractjs
    language: TypeScript
    official: true
    status: current
    version: 2.0.0
    published: '2026-08-07'
    covers:
      - Supertransaction API (MEE)
      - Nexus smart account
      - Smart Sessions
    note: >-
      The SDK the docs, llms.txt and .well-known/ai-plugin.json all name. Viem-inspired API —
      toMultichainNexusAccount, createMeeClient, buildComposable, getQuote, executeQuote,
      waitForSupertransactionReceipt.
  - name: '@biconomy/abstractjs-canary'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/abstractjs-canary
    repository: https://github.com/bcnmy/abstractjs
    language: TypeScript
    official: true
    status: prerelease
    version: 0.4.24
    published: '2025-08-08'
    note: Canary channel for AbstractJS. Behind the stable line; not for production use.
  - name: '@biconomy/sdk'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/sdk
    repository: https://github.com/bcnmy/sdk
    language: TypeScript
    official: true
    status: superseded
    version: 0.0.29
    published: '2025-01-16'
    note: >-
      Superseded by @biconomy/abstractjs. No release in over 19 months as of this pass — the
      strongest published abandonment signal on the Biconomy package surface after the v3/v4 family.
  - name: '@biconomy/account'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/account
    repository: https://github.com/bcnmy/biconomy-client-sdk
    language: TypeScript
    official: true
    status: superseded
    version: 4.5.7
    published: '2024-10-11'
    note: >-
      Biconomy Smart Account v2 client. Superseded by Nexus + AbstractJS; docs publish a
      V2-to-Nexus migration guide at https://docs.biconomy.io/upgrade-migrate/v2-to-nexus.
  - name: '@biconomy/bundler'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/bundler
    repository: https://github.com/bcnmy/biconomy-client-sdk
    language: TypeScript
    official: true
    status: superseded
    version: 3.1.4
    published: '2024-10-11'
    note: ERC-4337 bundler client for the v3/v4 generation. Frozen.
  - name: '@biconomy/paymaster'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/paymaster
    repository: https://github.com/bcnmy/biconomy-client-sdk
    language: TypeScript
    official: true
    status: superseded
    version: 3.1.4
    published: '2024-10-11'
    note: Paymaster client for the v3/v4 generation. Frozen.
  - name: '@biconomy/modules'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/modules
    language: TypeScript
    official: true
    status: superseded
    version: 3.1.4
    published: '2024-10-11'
    note: >-
      ERC-4337 validation modules for the v2 account. Superseded by the ERC-7579 module model
      in Nexus. No repository field published in the registry metadata.
  - name: '@biconomy/common'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/common
    repository: https://github.com/bcnmy/biconomy-client-sdk
    language: TypeScript
    official: true
    status: superseded
    version: 3.1.4
    published: '2024-10-11'
  - name: '@biconomy/core-types'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/core-types
    repository: https://github.com/bcnmy/biconomy-client-sdk
    language: TypeScript
    official: true
    status: superseded
    version: 3.1.4
    published: '2024-10-11'
  - name: '@biconomy/node-client'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/node-client
    repository: https://github.com/bcnmy/biconomy-client-sdk
    language: TypeScript
    official: true
    status: superseded
    version: 3.1.4
    published: '2024-10-11'
    note: Indexer client for the v2 account generation. Frozen.
  - name: '@biconomy/use-aa'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/use-aa
    language: TypeScript
    official: true
    status: superseded
    version: 1.1.1
    published: '2024-08-20'
    note: >-
      React hooks for the v2 account generation. No React binding exists for AbstractJS —
      React consumers use AbstractJS directly.
  - name: '@biconomy/passkey'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/passkey
    language: TypeScript
    official: true
    status: superseded
    version: 0.0.2
    published: '2024-12-03'
    note: Passkey validator plugin for the v2 SDK generation.
  - name: '@biconomy/mexa'
    registry: npm
    url: https://www.npmjs.com/package/@biconomy/mexa
    language: TypeScript
    official: true
    status: retired
    version: 3.0.6
    published: '2023-03-14'
    note: >-
      Mexa, Biconomy's original meta-transaction SDK. Predates account abstraction entirely.
      Recorded for identification only — it wraps a product line Biconomy no longer sells.
gaps:
  - >-
    No first-party non-TypeScript client. Python, Go, Java, .NET, Ruby and Rust consumers have
    no published Biconomy SDK; the documented path is raw REST against https://api.biconomy.io.
    Searched PyPI, pkg.go.dev, Maven Central, NuGet, RubyGems and crates.io — no first-party
    package under a Biconomy name.
  - >-
    No first-party CLI is distributed on npm or anywhere else.