Biconomy is the onchain orchestration layer for multi-chain applications, founded in 2019 and headquartered in Singapore. Its Modular Execution Environment (MEE) composes multi-step, cross-chain blockchain workflows — swaps, bridges, DeFi vault deposits, arbitrary contract calls — into a single user signature across 20+ EVM mainnets, handling sequencing, runtime parameter injection, bridge timing, gas abstraction, simulation-based async execution and failure recovery on the developer's behalf. The commercial surface is a REST Supertransaction API (POST /v1/quote, POST /v1/execute) plus the TypeScript AbstractJS SDK, both sitting on the same engine and the same project API key. Underneath, Biconomy ships open-source account-abstraction infrastructure: an ERC-4337 bundler, ERC-4337 paymasters for gas sponsorship and pay-in-token flows, and Nexus, an ERC-7579 modular smart account audited by Cyfrin, Spearbit, Zenith and Pashov. Smart Sessions layers scoped, time-limited, revocable on-chain delegation on top, which is how AI agents and automations transact on a user's behalf without holding their key. Biconomy also authored ERC-8211 for composable batching.
Biconomy publishes 10 API contracts indexed on the APIs.io network, including Instructions API, Mee API, Root API, and 7 more. Tagged areas include Account Abstraction, Blockchain, Bundler, Cross-Chain, and DeFi.
The Biconomy catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Biconomy’s developer surface includes authentication, developer portal, documentation, engineering blog, support, sandbox, changelog, and 71 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Payments regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it
carries 10 points of the composite. It is scored from the published contracts
themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already
holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in
front of it, and the first time that check is skipped a duplicate record is created.
Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet,
not penalised by it.
The six quality facets above are damped to 75 points between them,
because the conditional facet above carries the other
25. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 75% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
Show this score on your site.
It updates itself when the score changes. Paste this where you link to your API docs:
<a href="https://apis.io/providers/biconomy/"><img src="https://apis.io/badge/biconomy/card.svg" alt="Biconomy on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Raise your score.
Agent readiness — checks not met, largest first (exact, from this profile):
Idempotency+9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card+8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Delegated User Identity+6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface+6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility+6 pts — a reversal operation in the contract, graded up when a window is documented too
4 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Access Clarityscores 21.1 — up to +15.8 composite points
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
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) an...
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 boun...
AbstractJS (@biconomy/abstractjs) is Biconomy's TypeScript-first SDK with a Viem-inspired API. Wraps the Supertransaction API and Nexus smart account operations, exposing create...
GET /api/public/projects/me/supertransactions returns a project's full supertransaction history for reporting, reconciliation and gas-spend accounting. Each item carries the sup...
Status and tracking surface for a submitted supertransaction. GET /v1/explorer/{supertxHash} returns the terminal execution state (SUCCESS, FAILED) with execution details, authe...
Biconomy runs a hosted, anonymous-access MCP server on its documentation host. It is a DOCUMENTATION server, not an execution server: the three tools search, browse and give fee...
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
aid: biconomy
url: https://raw.githubusercontent.com/api-evangelist/biconomy/refs/heads/main/apis.yml
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-20
x-docs-hosting: vercel
apis:
- 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 Transactions
tags_raw:
- 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: SDKs
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.
- aid: biconomy:biconomy-instructions-api
name: Biconomy Instructions API
description: The instructions API from Biconomy — 2 operation(s) for instructions.
humanURL: https://docs.biconomy.io/overview/supertransaction-api
baseURL: https://api.biconomy.io
tags:
- Instructions
tags_raw:
- instructions
properties:
- type: OpenAPI
url: openapi/biconomy-instructions-api-openapi.yml
- type: Overlay
url: overlays/biconomy-instructions-api-overlay.yaml
- type: Postman
url: collections/biconomy-instructions-api.postman_collection.json
- type: OpenCollection
url: collections/biconomy-instructions-api.opencollection.json
- type: ErrorCatalog
url: errors/biconomy-problem-types.yml
- type: Conventions
url: conventions/biconomy-conventions.yml
- type: DataModel
url: data-model/biconomy-data-model.yml
- type: Documentation
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: JSONSchema
url: json-schema/biconomy-quote-request-schema.json
- type: JSONSchema
url: json-schema/biconomy-quote-response-schema.json
- type: JSONStructure
url: json-structure/biconomy-supertransaction-structure.json
- type: JSONLD
url: json-ld/biconomy-context.jsonld
- type: Examples
url: examples/biconomy-quote-eoa-7702-example.json
- type: Examples
url: examples/biconomy-execute-example.json
- aid: biconomy:biconomy-mee-api
name: Biconomy Mee API
description: The mee API from Biconomy — 1 operation(s) for mee.
humanURL: https://docs.biconomy.io/overview/supertransaction-api
baseURL: https://api.biconomy.io
tags:
- MEE
tags_raw:
- mee
properties:
- type: OpenAPI
url: openapi/biconomy-mee-api-openapi.yml
- type: Overlay
url: overlays/biconomy-mee-api-overlay.yaml
- type: Postman
url: collections/biconomy-mee-api.postman_collection.json
- type: OpenCollection
url: collections/biconomy-mee-api.opencollection.json
- type: ErrorCatalog
url: errors/biconomy-problem-types.yml
- type: Conventions
url: conventions/biconomy-conventions.yml
- type: DataModel
url: data-model/biconomy-data-model.yml
- type: Documentation
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: JSONSchema
url: json-schema/biconomy-quote-request-schema.json
- type: JSONSchema
url: json-schema/biconomy-quote-response-schema.json
- type: JSONStructure
url: json-structure/biconomy-supertransaction-structure.json
- type: JSONLD
url: json-ld/biconomy-context.jsonld
- type: Examples
url: examples/biconomy-quote-eoa-7702-example.json
- type: Examples
url: examples/biconomy-execute-example.json
- aid: biconomy:biconomy-root-api
name: Biconomy Root API
description: The root API from Biconomy — 2 operation(s) for root.
humanURL: https://docs.biconomy.io/overview/supertransaction-api
baseURL: https://api.biconomy.io
tags:
- Root
tags_raw:
- root
properties:
- type: OpenAPI
url: openapi/biconomy-root-api-openapi.yml
- type: Overlay
url: overlays/biconomy-root-api-overlay.yaml
- type: Postman
url: collections/biconomy-root-api.postman_collection.json
- type: OpenCollection
url: collections/biconomy-root-api.opencollection.json
- type: ErrorCatalog
url: errors/biconomy-problem-types.yml
- type: Conventions
url: conventions/biconomy-conventions.yml
- type: DataModel
url: data-model/biconomy-data-model.yml
- type: Documentation
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: JSONSchema
url: json-schema/biconomy-quote-request-schema.json
- type: JSONSchema
url: json-schema/biconomy-quote-response-schema.json
- type: JSONStructure
url: json-structure/biconomy-supertransaction-structure.json
- type: JSONLD
url: json-ld/biconomy-context.jsonld
- type: Examples
url: examples/biconomy-quote-eoa-7702-example.json
- type: Examples
url: examples/biconomy-execute-example.json
- aid: biconomy:biconomy-dashboard-public-api
name: Biconomy Dashboard Public API
humanURL: https://docs.biconomy.io/overview/supertransaction-api/history-and-costs
baseURL: https://dashboard.biconomy.io
tags:
- MEE
- Reporting
- Cost Accounting
- Account Abstraction
properties:
- type: Documentation
url: https://docs.biconomy.io/overview/supertransaction-api/history-and-costs
- type: Authentication
url: authentication/biconomy-authentication.yml
- type: Conventions
url: conventions/biconomy-conventions.yml
description: 'GET /api/public/projects/me/supertransactions returns a project''s full supertransaction history for reporting,
reconciliation and gas-spend accounting. Each item carries the supertransaction hash, execution status, chain ids and
payment details (fee token, gas fee, amounts). Authenticated with the project API key in a lowercase x-api-key header.
This is the only Biconomy surface with a collection and the only one with pagination: query parameters lowerBound, upperBound,
executedOnly, limit, cursor and before drive cursor pagination, and responses carry a pagination object of {limit, hasNextPage,
nextCursor}. It appears in no published OpenAPI — it is documented only in prose at the history-and-costs page — so it
is registered here as a documented-but-unspecified surface.'
- aid: biconomy:biconomy-mee-explorer-api
name: Biconomy MEE Explorer API
humanURL: https://docs.biconomy.io/overview/supertransaction-api/execute
baseURL: https://network.biconomy.io
tags:
- MEE
- Explorer
- Transaction Status
- Account Abstraction
properties:
- type: Documentation
url: https://docs.biconomy.io/overview/supertransaction-api/execute
- type: Documentation
url: https://docs.biconomy.io/llms.txt
- type: Authentication
url: authentication/biconomy-authentication.yml
- type: Explorer
url: https://meescan.biconomy.io
description: 'Status and tracking surface for a submitted supertransaction. GET /v1/explorer/{supertxHash} returns the terminal
execution state (SUCCESS, FAILED) with execution details, authenticated with the same dashboard-issued key sent as an
Authorization Bearer token rather than in X-API-Key. It is the necessary companion to POST /v1/execute, whose 200 means
accepted rather than completed. Recorded here because it is a distinct host and a distinct auth convention from api.biconomy.io,
and because it is documented only in llms.txt and the execute guide — it appears in no published OpenAPI. Probed unauthenticated
2026-08-24: HTTP 401 with {"errors":["API key required..."]}, which confirms the host and the gate but leaves the response
schema unmeasured. The human-readable equivalent is https://meescan.biconomy.io.'
name: Biconomy
deliveryModel:
model: saas
license_evidence:
not_product:
- bcnmy/abstractjs
- bcnmy/biconomy-paymasters
- bcnmy/bundler
- bcnmy/entry-point-gas-estimations
- bcnmy/erc8211-contracts
open_source: unknown
commercial: true
callable_host: true
label: Hosted service · you call their endpoint
confidence: low
source:
- openapi
- pricing
- repository-not-product
generated: '2026-09-25'
method: derived
created: '2026-05-25'
modified: '2026-08-24'
description: 'Biconomy is the onchain orchestration layer for multi-chain applications, founded in 2019 and headquartered
in Singapore. Its Modular Execution Environment (MEE) composes multi-step, cross-chain blockchain workflows — swaps, bridges,
DeFi vault deposits, arbitrary contract calls — into a single user signature across 20+ EVM mainnets, handling sequencing,
runtime parameter injection, bridge timing, gas abstraction, simulation-based async execution and failure recovery on the
developer''s behalf. The commercial surface is a REST Supertransaction API (POST /v1/quote, POST /v1/execute) plus the TypeScript
AbstractJS SDK, both sitting on the same engine and the same project API key. Underneath, Biconomy ships open-source account-abstraction
infrastructure: an ERC-4337 bundler, ERC-4337 paymasters for gas sponsorship and pay-in-token flows, and Nexus, an ERC-7579
modular smart account audited by Cyfrin, Spearbit, Zenith and Pashov. Smart Sessions layers scoped, time-limited, revocable
on-chain delegation on top, which is how AI agents and automations transact on a user''s behalf without holding their key.
Biconomy also authored ERC-8211 for composable batching.'
tags:
- Account Abstraction
- Blockchain
- Bundler
- Cross-Chain
- DeFi
- ERC-4337
- ERC-7579
- ERC-7702
- Ethereum
- Gas Abstraction
- Gasless Transactions
- MEE
- Paymaster
- Smart Accounts
- Smart Sessions
- Wallets
- Web3
- A2A
tags_raw:
- 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
- A2A
kind: contract
accessModel:
pricing: freemium
onboarding: self-serve
trial: false
try_now: true
public: false
gated: none
gated_source:
- onboarding
label: Freemium · Self-serve signup
confidence: high
source:
- plans
- authentication
- rate-limits
- security
- sandbox
generated: '2026-11-06'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/biconomy.png
access: 3rd-Party
common:
- type: Website
url: https://www.biconomy.io/
- type: AgenticAccess
url: agentic-access/biconomy-agentic-access.yml
- type: DomainSecurity
url: security/biconomy-domain-security.yml
- type: Authentication
url: authentication/biconomy-authentication.yml
- 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-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: SDKs
- 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://blog.biconomy.io
name: Blog
type: Blog
- url: https://blog.biconomy.io/rss/
name: Blog RSS
type: BlogRSS
- 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
- url: packages/biconomy-packages.yml
name: Client Packages
type: Packages
- url: packages/biconomy-packages.yml
name: Official SDKs
type: SDKs
- url: well-known/biconomy-well-known.yml
name: Well-Known Documents
type: WellKnown
- url: mcp/biconomy-mcp.yml
name: Biconomy Docs MCP Server
type: MCPServer
- url: mcp/biconomy-tool-crosswalk.yml
name: MCP to REST Tool Crosswalk
type: ToolCrosswalk
- url: a2a/biconomy-a2a.yml
name: A2A Agent Card
type: AgentCard
- url: llms/biconomy-llms.txt
name: LLMs.txt
type: LLMsTxt
- url: skills/_index.yml
name: Agent Skills
type: AgentSkill
- url: conformance/biconomy-conformance.yml
name: Standards Conformance
type: Conformance
- url: errors/biconomy-problem-types.yml
name: Error Catalog
type: ErrorCatalog
- url: lifecycle/biconomy-lifecycle.yml
name: Lifecycle and Versioning
type: Lifecycle
- url: lifecycle/biconomy-lifecycle.yml
name: Deprecation and Migration Policy
type: Deprecation
- url: conventions/biconomy-conventions.yml
name: API Conventions and Reversibility
type: Conventions
- url: sandbox/biconomy-sandbox.yml
name: Testnets and Simulation
type: Sandbox
- url: changelog/biconomy-changelog.yml
name: Change Log
type: ChangeLog
- url: data-model/biconomy-data-model.yml
name: Data Model
type: DataModel
- url: https://docs.biconomy.io/mcp
name: Biconomy Docs MCP endpoint
type: MCPServer
- url: https://docs.biconomy.io/.well-known/agent-card.json
name: Published A2A Agent Card
type: AgentCard
- url: https://docs.biconomy.io/overview/introduction
name: Getting Started
type: GettingStarted
- url: https://docs.biconomy.io/overview/supertransaction-api
name: API Reference
type: APIReference
- url: https://docs.biconomy.io
name: Developer Portal
type: DeveloperPortal
- url: https://github.com/bcnmy
name: bcnmy on GitHub
type: GitHubOrganization
- url: https://docs.biconomy.io/supertransaction-api/openapi.yaml
name: Published OpenAPI (docs host)
type: OpenAPI
include: []
maintainers:
- FN: Biconomy
url: https://www.biconomy.io
email: support@biconomy.io
overlays: []
specificationVersion: '0.23'
x-enrichment:
date: '2026-08-24'
status: enriched
artifacts_added: 29
pass: local-v1
x-a2a:
verified: true
probed: '2026-09-26'
url: https://docs.biconomy.io/.well-known/agent-card.json
grade: conformant
protocol_version: '0.3'
control: 404
Biconomy API — frequently asked questions
Does Biconomy have an API?
Yes. APIs.io lists 10 APIs from Biconomy, including Biconomy Bundler API, Biconomy Sponsorship Paymaster and Biconomy Nexus Smart Account, and 7 more.
Is there an OpenAPI specification for the Biconomy API?
Yes. APIs.io indexes 3 OpenAPI specifications for Biconomy, each linked for download from this page.
How do I authenticate with the Biconomy API?
Biconomy uses bearer-token authentication (apiKey/http-bearer · 3 schemes). The details are profiled on APIs.io as Biconomy Authentication.
How much does the Biconomy API cost?
APIs.io lists 2 pricing plans for Biconomy, with each plan's price, limits and inclusions under Pricing on this page.
Does Biconomy have an MCP server?
Yes. APIs.io lists 1 MCP server for Biconomy: Biconomy runs a hosted, anonymous-access MCP server on its documentation host. It is a DOCUMENTATION server, not an execution server: the three tools search, browse and give feedback on the docs corpu
Is the Biconomy API ready for AI agents?
Biconomy has a Kin Score of 56.3 out of 100 (strong) and an Agent Readiness score of 37.3 (agent-ready), scored by API Evangelist on 2026-11-06.
Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we
store it to create your key and to recognise you if you sign in with another
provider. See our Privacy Policy and
Terms.
Kin Score
How this is scored →
It updates itself when the score changes. Paste this where you link to your API docs: