Biconomy

aid: biconomy
url: https://raw.githubusercontent.com/api-evangelist/biconomy/refs/heads/main/apis.yml
apis:
  - aid: biconomy:biconomy-supertransaction-api
    name: Biconomy Supertransaction API
    tags:
      - Account Abstraction
      - ERC-4337
      - ERC-7702
      - MEE
      - Quotes
      - Cross-Chain
      - Gasless
    humanURL: https://docs.biconomy.io/overview/supertransaction-api
    baseURL: https://api.biconomy.io
    properties:
      - url: https://docs.biconomy.io/overview/supertransaction-api
        type: Documentation
      - url: https://docs.biconomy.io/overview/supertransaction-api/get-quote
        type: Documentation
      - url: https://docs.biconomy.io/overview/supertransaction-api/quote-eoa
        type: Documentation
      - url: https://docs.biconomy.io/overview/supertransaction-api/quote-smart-account
        type: Documentation
      - url: https://docs.biconomy.io/overview/supertransaction-api/quote-7702
        type: Documentation
      - url: https://docs.biconomy.io/overview/supertransaction-api/sign-payload
        type: Documentation
      - url: https://docs.biconomy.io/overview/supertransaction-api/execute
        type: Documentation
      - url: openapi/biconomy-supertransaction-api-openapi.yml
        type: OpenAPI
      - url: json-schema/biconomy-quote-request-schema.json
        type: JSONSchema
      - url: json-schema/biconomy-quote-response-schema.json
        type: JSONSchema
      - url: json-structure/biconomy-supertransaction-structure.json
        type: JSONStructure
      - url: json-ld/biconomy-context.jsonld
        type: JSONLD
      - url: examples/biconomy-quote-eoa-7702-example.json
        type: Example
      - url: examples/biconomy-execute-example.json
        type: Example
    description: >-
      The Biconomy Supertransaction API exposes the Modular Execution Environment (MEE) over a small REST surface — POST
      /v1/quote composes a multichain execution plan and returns the signable payload(s) and fee, and POST /v1/execute
      submits the signed supertransaction for cross-chain settlement. Three account modes are supported - smart-account
      (Nexus / ERC-4337), eoa (MetaMask, Rabby, Trust funded by an explicit fundingToken), and eoa-7702 (EIP-7702
      set-code delegation for Privy / Dynamic / Turnkey embedded wallets). Composable instruction types include
      intent-simple, intent, intent-vault (200+ DeFi vaults), build, build-raw, and build-ccip.
  - aid: biconomy:biconomy-bundler-api
    name: Biconomy Bundler API
    tags:
      - Account Abstraction
      - ERC-4337
      - Bundler
      - UserOps
    humanURL: https://github.com/bcnmy/bundler
    properties:
      - url: https://github.com/bcnmy/bundler
        type: SourceCode
      - url: https://docs.biconomy.io/contracts-and-audits/supported-chains
        type: Documentation
    description: >-
      Biconomy's open-source ERC-4337 TypeScript Bundler. Implements eth_sendUserOperation,
      eth_estimateUserOperationGas, eth_getUserOperationByHash, eth_getUserOperationReceipt, and
      eth_supportedEntryPoints across both EntryPoint v0.6.0 and v0.7.0. Hosted bundler endpoints are issued per project
      from the Biconomy Dashboard.
  - aid: biconomy:biconomy-sponsorship-paymaster
    name: Biconomy Sponsorship Paymaster
    tags:
      - Account Abstraction
      - ERC-4337
      - Paymaster
      - Gas Sponsorship
      - Gasless
    humanURL: https://docs.biconomy.io/gasless-apps/sponsorship
    properties:
      - url: https://docs.biconomy.io/gasless-apps
        type: Documentation
      - url: https://docs.biconomy.io/gasless-apps/sponsorship
        type: Documentation
      - url: https://docs.biconomy.io/gasless-apps/testnet-sponsorship
        type: Documentation
      - url: https://docs.biconomy.io/gasless-apps/pay-in-tokens
        type: Documentation
      - url: https://github.com/bcnmy/biconomy-paymasters
        type: SourceCode
      - url: https://dashboard.biconomy.io
        type: Dashboard
    description: >-
      ERC-4337 paymaster service that fronts gas on behalf of end users so dApps can offer gasless UX. Two modes — full
      sponsorship (developer pays gas, post-paid invoiced monthly) and pay-in-tokens (user pays gas in ERC-20). All
      sponsorship limits (per-tx USD cap, per-user daily cap, allowed contracts, chain whitelist) are configured per
      project in the Biconomy Dashboard and enforced before /v1/quote returns a sponsored quote.
  - aid: biconomy:biconomy-nexus-smart-account
    name: Biconomy Nexus Smart Account
    tags:
      - Account Abstraction
      - ERC-4337
      - ERC-7579
      - Smart Accounts
      - Modules
    humanURL: https://github.com/bcnmy/nexus
    properties:
      - url: https://github.com/bcnmy/nexus
        type: SourceCode
      - url: https://github.com/bcnmy/nexus/wiki
        type: Documentation
      - url: https://docs.biconomy.io/contracts-and-audits
        type: Documentation
      - url: https://docs.biconomy.io/contracts-and-audits/supported-chains
        type: Documentation
    description: >-
      Nexus is Biconomy's ERC-7579 modular smart contract account, audited by CodeHawks-Cyfrin (Sept 2024), Spearbit
      (Oct/Nov 2024), Zenith (Mar 2025), and Pashov (Mar 2025), and pre-deployed across 20+ EVM mainnets. Supports the
      four ERC-7579 module types (validator, executor, hook, fallback) and is the underlying account implementation
      behind eoa-7702 mode of the MEE API.
  - aid: biconomy:biconomy-smart-sessions-api
    name: Biconomy Smart Sessions API
    tags:
      - Account Abstraction
      - Smart Sessions
      - Agents
      - Automation
      - Policies
    humanURL: https://docs.biconomy.io/agents-automation
    properties:
      - url: https://docs.biconomy.io/agents-automation
        type: Documentation
      - url: https://docs.biconomy.io/agents-automation/implementation
        type: Documentation
      - url: https://docs.biconomy.io/agents-automation/agent-types
        type: Documentation
      - url: https://docs.biconomy.io/agents-automation/policies
        type: Documentation
      - url: https://docs.biconomy.io/agents-automation/policies/sudo
        type: Documentation
      - url: https://docs.biconomy.io/agents-automation/policies/universal-action
        type: Documentation
      - url: https://docs.biconomy.io/agents-automation/policies/time-range
        type: Documentation
      - url: https://docs.biconomy.io/agents-automation/policies/usage-limit
        type: Documentation
      - url: https://docs.biconomy.io/sdk-reference/sessions
        type: Documentation
      - url: https://github.com/bcnmy/session-permissioned-intents
        type: SourceCode
    description: >-
      Smart Sessions is a delegated-execution framework layered on Nexus. A session key is granted a scoped set of
      policies (Sudo, Universal Action, Time Range, Usage Limit) that bound what an agent or automation can execute on
      behalf of the owner. Intended for agents, recurring automations, and intent-flow access without re-prompting the
      owner for every transaction.
  - aid: biconomy:biconomy-abstractjs-sdk
    name: Biconomy AbstractJS SDK
    tags:
      - SDK
      - TypeScript
      - Account Abstraction
      - MEE
    humanURL: https://docs.biconomy.io/overview/abstractjs
    properties:
      - url: https://docs.biconomy.io/overview/abstractjs
        type: Documentation
      - url: https://docs.biconomy.io/overview/abstractjs/setup
        type: Documentation
      - url: https://docs.biconomy.io/overview/abstractjs/composable-batching
        type: Documentation
      - url: https://docs.biconomy.io/overview/abstractjs/cross-chain
        type: Documentation
      - url: https://docs.biconomy.io/overview/abstractjs/conditional-execution
        type: Documentation
      - url: https://docs.biconomy.io/overview/abstractjs/cleanup
        type: Documentation
      - url: https://docs.biconomy.io/overview/abstractjs/estimating-gas
        type: Documentation
      - url: https://docs.biconomy.io/overview/abstractjs/batch-calls
        type: Documentation
      - url: https://docs.biconomy.io/sdk-reference
        type: Documentation
      - url: https://github.com/bcnmy/abstractjs
        type: SourceCode
      - url: https://www.npmjs.com/package/@biconomy/abstractjs
        type: SDK
    description: >-
      AbstractJS (@biconomy/abstractjs) is Biconomy's TypeScript-first SDK with a Viem-inspired API. Wraps the
      Supertransaction API and Nexus smart account operations, exposing createMeeClient, getQuote, executeQuote, and
      waitForSupertransactionReceipt helpers, plus composable instruction builders for cross-chain orchestration,
      conditional execution, runtime balance injection, and cleanup.
name: Biconomy
tags:
  - Account Abstraction
  - Blockchain
  - Bundler
  - Cross-Chain
  - DeFi
  - ERC-4337
  - ERC-7579
  - ERC-7702
  - Ethereum
  - Gas Abstraction
  - Gasless
  - MEE
  - Paymaster
  - Smart Accounts
  - Smart Sessions
  - Wallets
  - Web3
kind: contract
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
access: 3rd-Party
common:
  - url: https://www.biconomy.io
    name: Biconomy
    type: Portal
  - url: https://docs.biconomy.io
    name: Documentation
    type: Documentation
  - url: https://docs.biconomy.io/llms.txt
    name: LLMs.txt Index
    type: Documentation
  - url: https://dashboard.biconomy.io
    name: Biconomy Dashboard
    type: Dashboard
  - url: https://meescan.biconomy.io
    name: MEEScan Explorer
    type: Explorer
  - url: https://github.com/bcnmy
    name: bcnmy GitHub Organization
    type: SourceCode
  - url: https://github.com/bcnmy/nexus
    name: Nexus Smart Account
    type: SourceCode
  - url: https://github.com/bcnmy/abstractjs
    name: AbstractJS SDK
    type: SourceCode
  - url: https://github.com/bcnmy/bundler
    name: 4337 TypeScript Bundler
    type: SourceCode
  - url: https://github.com/bcnmy/biconomy-paymasters
    name: Biconomy Paymasters
    type: SourceCode
  - url: https://github.com/bcnmy/mee-node
    name: MEE Node
    type: SourceCode
  - url: https://github.com/bcnmy/mee-contracts
    name: MEE Contracts
    type: SourceCode
  - url: https://github.com/bcnmy/stx-contracts
    name: Cross-chain Supertransaction Contracts
    type: SourceCode
  - url: https://github.com/bcnmy/erc8211-contracts
    name: ERC-8211 Contracts
    type: SourceCode
  - url: https://github.com/bcnmy/entry-point-gas-estimations
    name: 4337 Gas Estimations SDK
    type: SourceCode
  - url: https://github.com/bcnmy/session-permissioned-intents
    name: Smart Sessions Intents Demo
    type: SourceCode
  - url: https://github.com/bcnmy/awesome-biconomy
    name: Awesome Biconomy
    type: Documentation
  - url: https://www.npmjs.com/package/@biconomy/abstractjs
    name: '@biconomy/abstractjs on npm'
    type: SDK
  - url: https://docs.biconomy.io/sdk-reference
    name: AbstractJS SDK Reference
    type: Documentation
  - url: https://docs.biconomy.io/sdk-reference/account
    name: Account Functions
    type: Documentation
  - url: https://docs.biconomy.io/sdk-reference/client
    name: Client Methods
    type: Documentation
  - url: https://docs.biconomy.io/sdk-reference/instructions
    name: Instructions
    type: Documentation
  - url: https://docs.biconomy.io/sdk-reference/runtime
    name: Runtime Functions
    type: Documentation
  - url: https://docs.biconomy.io/sdk-reference/conditions
    name: Conditions
    type: Documentation
  - url: https://docs.biconomy.io/sdk-reference/sessions
    name: Smart Sessions API
    type: Documentation
  - url: https://docs.biconomy.io/sdk-reference/utilities
    name: Utilities
    type: Documentation
  - url: https://docs.biconomy.io/wallet-integrations
    name: Wallet Integrations
    type: Documentation
  - url: https://docs.biconomy.io/wallet-integrations/privy/api
    name: Privy Integration
    type: Documentation
  - url: https://docs.biconomy.io/wallet-integrations/turnkey/api
    name: Turnkey Integration
    type: Documentation
  - url: https://docs.biconomy.io/wallet-integrations/para/api
    name: Para Integration
    type: Documentation
  - url: https://docs.biconomy.io/wallet-integrations/external-wallets/api
    name: External Wallets Integration
    type: Documentation
  - url: https://docs.biconomy.io/swaps-trading
    name: Swaps and Trading
    type: Documentation
  - url: https://docs.biconomy.io/swaps-trading/gasless-swap
    name: Gasless Swap
    type: Documentation
  - url: https://docs.biconomy.io/swaps-trading/cross-chain-swap
    name: Cross-Chain Swap
    type: Documentation
  - url: https://docs.biconomy.io/swaps-trading/limit-order
    name: Limit Orders
    type: Documentation
  - url: https://docs.biconomy.io/zaps
    name: Zaps (DeFi Vaults)
    type: Documentation
  - url: https://docs.biconomy.io/agents-automation
    name: Agents and Automation
    type: Documentation
  - url: https://docs.biconomy.io/gasless-apps
    name: Gasless Apps
    type: Documentation
  - url: https://docs.biconomy.io/gasless-apps/sponsorship
    name: Sponsorship
    type: Documentation
  - url: https://docs.biconomy.io/gasless-apps/pay-in-tokens
    name: Pay In Tokens
    type: Documentation
  - url: https://docs.biconomy.io/contracts-and-audits
    name: Contracts and Audits
    type: Documentation
  - url: https://docs.biconomy.io/contracts-and-audits/supported-chains
    name: Supported Chains
    type: Documentation
  - url: https://www.biconomy.io/blog
    name: Blog
    type: Blog
  - url: https://x.com/biconomy
    name: X / Twitter
    type: Twitter
  - url: https://www.linkedin.com/company/biconomy
    type: LinkedIn
  - url: https://discord.gg/biconomy
    name: Discord
    type: Support
  - url: plans/biconomy-plans-pricing.yml
    name: Plans
    type: Plans
  - url: rate-limits/biconomy-rate-limits.yml
    name: Rate Limits
    type: RateLimits
  - url: finops/biconomy-finops.yml
    name: FinOps
    type: FinOps
  - url: vocabulary/biconomy-vocabulary.yml
    name: Vocabulary
    type: Vocabulary
  - url: rules/biconomy-rules.yml
    name: Spectral Rules
    type: Rules
include: []
maintainers:
  - FN: Biconomy
    url: https://www.biconomy.io
    email: support@biconomy.io
overlays:
  - type: APIs.io Search
    url: overlays/biconomy-apis-io-search.yml
  - type: APIs.json Properties
    url: overlays/biconomy-apis-json-properties.yml
specificationVersion: '0.18'