aid: bitfury-group
name: BitFury
description: 'Bitfury Group is a blockchain technology company founded in 2011 as one of the earliest
  Bitcoin mining hardware makers and full-cycle infrastructure providers, and now operating as a
  technology incubator headquartered in London with data-center and hardware operations behind Bitcoin
  transaction processing. Its developer-facing surface is Exonum, the open-source (Apache-2.0) framework
  Bitfury Group Limited built for private and permissioned blockchain applications: an Exonum node
  exposes REST and WebSocket endpoints through its explorer service, system API plugin, supervisor and
  time-oracle services, and ships light clients for JavaScript, Python and Java plus a Rust crate family,
  a node CLI and published Protobuf message definitions. Bitfury also anchors permissioned chains into
  the Bitcoin blockchain and incubates Cipher Mining, Crystal, LiquidStack and Axelera AI.'
image: https://bitfury.com/assets/img/logo.svg
url: https://raw.githubusercontent.com/api-evangelist/bitfury-group/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment
specificationVersion: '0.20'
created: '2026-07-31'
modified: '2026-07-31'
tags:
- Company
- Blockchain
- Bitcoin
- Cryptocurrency
- Distributed Ledger
- Permissioned Blockchain
- Open Source
- Data Centers
- Mining Hardware
- Enterprise Blockchain
apis:
- aid: bitfury-group:exonum-node-http-api
  name: Exonum Node HTTP API
  description: 'The HTTP surface an Exonum node serves. The explorer service exposes REST endpoints under
    /api/explorer (blocks, block, transactions, call_status) plus a WebSocket interface for submitting
    signed transactions and subscribing to block- and transaction-commit events; the system API plugin
    exposes node info, stats, peers, consensus status and shutdown under /api/system on the private HTTP
    server; built-in services (supervisor, time oracle) expose their own endpoints under
    /api/services/{service_name}. Exonum is self-hosted software, so there is no vendor-operated base
    URL - each operator runs their own node and chooses its public and private ports.'
  humanURL: https://exonum.com/doc/version/latest/
  tags:
  - Blockchain
  - Permissioned Blockchain
  - Explorer
  - WebSockets
  x-deployment: self-hosted
  x-deployment-note: 'No vendor-hosted base URL exists, and none is asserted here; the documentation
    demonstrates the API against a locally run node (public HTTP server 8080, private 8081 in the
    tutorials).'
  properties:
  - type: Documentation
    url: https://exonum.com/doc/version/latest/
  - type: APIReference
    url: https://docs.rs/exonum-explorer-service/latest/exonum_explorer_service/api/index.html
  - type: SourceCode
    url: https://github.com/exonum/exonum
  - type: Webhooks
    name: Exonum explorer WebSocket event subscriptions (pub/sub; no HTTP webhooks)
    url: asyncapi/bitfury-group-exonum-events.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://bitfury.com/
- type: DeveloperPortal
  url: https://exonum.com/developers.html
- type: Documentation
  url: https://exonum.com/doc/version/latest/
- type: APIReference
  url: https://docs.rs/exonum-explorer-service/latest/exonum_explorer_service/api/index.html
- type: GettingStarted
  url: https://exonum.com/doc/version/latest/get-started/design-overview/
- type: Support
  url: https://gitter.im/exonum/exonum
- type: GitHubOrganization
  url: https://github.com/exonum
- type: SourceCode
  url: https://github.com/exonum/exonum
- type: Roadmap
  url: https://exonum.com/doc/version/latest/roadmap/
- type: FAQ
  url: https://exonum.com/faq.html
- type: License
  url: https://github.com/exonum/exonum/blob/master/LICENSE
- type: TermsOfService
  url: https://bitfury.com/terms-of-service
- type: PrivacyPolicy
  url: https://bitfury.com/privacy-policy
- type: Blog
  url: https://bitfury.com/news
- type: Contact
  url: https://bitfury.com/contacts
- type: SecondaryMarket
  url: https://forgeglobal.com/bitfury-group_stock/
- type: ChangeLog
  url: https://github.com/exonum/exonum/blob/master/CHANGELOG.md
- type: ChangeLog
  name: Exonum changelog (captured)
  url: changelog/bitfury-group-changelog.yml
- type: Packages
  url: packages/bitfury-group-packages.yml
- type: SDKs
  name: Exonum light clients and framework packages (Rust, JavaScript, Python, Java)
  url: packages/bitfury-group-packages.yml
- type: CLI
  name: exonum-cli node management tool
  url: cli/bitfury-group-cli.yml
- type: Sandbox
  name: Exonum testkit and run-dev local node
  url: sandbox/bitfury-group-sandbox.yml
- type: Authentication
  url: authentication/bitfury-group-authentication.yml
- type: Conventions
  url: conventions/bitfury-group-conventions.yml
- type: ErrorCatalog
  name: Exonum execution error catalog
  url: errors/bitfury-group-problem-types.yml
- type: Lifecycle
  url: lifecycle/bitfury-group-lifecycle.yml
- type: Deprecation
  name: Exonum artifact versioning and method-removal policy
  url: https://exonum.com/doc/version/latest/advanced/versioning/
- type: Conformance
  url: conformance/bitfury-group-conformance.yml
- type: DataModel
  url: data-model/bitfury-group-data-model.yml
- type: Webhooks
  name: Exonum explorer WebSocket event subscriptions (pub/sub; no HTTP webhooks)
  url: asyncapi/bitfury-group-exonum-events.yml
- type: DomainSecurity
  url: security/bitfury-group-domain-security.yml
- type: LLMsTxt
  url: llms/bitfury-group-llms.txt
- type: Protobuf
  name: exonum.Block, TxLocation, CallInBlock, consensus Config
  url: grpc/bitfury-group-exonum-blockchain.proto
- type: Protobuf
  name: exonum consensus messages (SignedMessage, CoreMessage, Precommit)
  url: grpc/bitfury-group-exonum-messages.proto
- type: Protobuf
  name: exonum.crypto types (Hash, PublicKey, Signature)
  url: grpc/bitfury-group-exonum-crypto-types.proto
- type: Protobuf
  name: exonum.runtime base (CallInfo, AnyTx, ArtifactId, InstanceSpec)
  url: grpc/bitfury-group-exonum-runtime-base.proto
- type: Protobuf
  name: exonum.runtime auth (Caller)
  url: grpc/bitfury-group-exonum-runtime-auth.proto
- type: Protobuf
  name: exonum.runtime errors (ErrorKind, ExecutionError, CallSite)
  url: grpc/bitfury-group-exonum-runtime-errors.proto
- type: Protobuf
  name: exonum.runtime service lifecycle (ArtifactState, InstanceStatus, migrations)
  url: grpc/bitfury-group-exonum-runtime-lifecycle.proto
- type: Protobuf
  name: exonum proofs (BlockProof, IndexProof, CallProof)
  url: grpc/bitfury-group-exonum-proofs.proto
- type: Protobuf
  name: exonum merkelized list proof
  url: grpc/bitfury-group-exonum-proof-list_proof.proto
- type: Protobuf
  name: exonum merkelized map proof
  url: grpc/bitfury-group-exonum-proof-map_proof.proto
- type: Protobuf
  name: exonum key-value sequence
  url: grpc/bitfury-group-exonum-key_value_sequence.proto
- type: Protobuf
  name: exonum common BitVec
  url: grpc/bitfury-group-exonum-common-bit_vec.proto
x-enrichment:
  date: '2026-07-31'
  status: enriched
  artifacts_added: 26
  pass: local-v1
x-enrichment-notes:
  no_openapi: 'Bitfury publishes no OpenAPI, Swagger, GraphQL or AsyncAPI description for Exonum. Probed
    /openapi.json, /swagger.json, /api-docs and /llms.txt on both bitfury.com and exonum.com (all 404 on
    2026-07-31); the published reference is hand-written crate documentation on docs.rs. No spec was
    authored on the provider''s behalf.'
  no_agent_card: /.well-known/agent-card.json and /.well-known/agent.json return 404 on both hosts; no
    A2A card exists and none was written.
  no_mcp: No official or community MCP server for Exonum or Bitfury was found, and there is no OpenAPI to
    derive a candidate tool list from, so mcp/ was skipped.
  no_skills: 'skills/ was skipped by the pipeline rule that agent skills must be grounded in real
    operationIds from an OpenAPI: none exists.'
  no_idempotency: 'Exonum documents the opposite of an idempotency contract - transactions carry a seed
    field expressly to guarantee non-idempotence - so no Idempotency pointer is emitted.'
  no_security_program: probe-security-programs.py found no security.txt, no disclosure page and no trust
    center on 2026-07-31, so no Security, VulnerabilityDisclosure, TrustCenter or Compliance pointer is
    emitted.
  no_well_known: 'Every /.well-known/ path probed returned 404 on both hosts; well-known/ holds the probe
    record only and carries no WellKnown pointer.'