BlockFi website screenshot

BlockFi

BlockFi was a Jersey City, New Jersey crypto-financial-services company founded in 2017 by Zac Prince and Flori Marquez that offered retail and institutional clients interest-bearing crypto accounts (the BlockFi Interest Account), USD loans collateralized by bitcoin and other digital assets, spot trading, and a bitcoin-rewards credit card, growing on a USD 350 million Series D in March 2021 that valued it at roughly USD 3 billion. The company filed for Chapter 11 bankruptcy protection in November 2022 in the wake of the FTX and Alameda Research collapse, and emerged in October 2023 not as an operating business but as a wind-down estate. Its customer web platform and mobile apps have been shut down, in-kind crypto distributions are administered through Coinbase and cash distributions through Kroll Restructuring Administration and Digital Disbursements, and blockfi.com is now a WordPress notice site carrying noindex/nofollow and dated estate updates rather than a product. There is no operating developer program: api.blockfi.com and every other developer, docs and app subdomain no longer resolve in DNS, the company GitHub organization holds zero public repositories, and no OpenAPI, GraphQL, AsyncAPI, MCP or agent-card document is served from any surviving BlockFi host.

BlockFi is profiled on the APIs.io network. Tagged areas include Company, Cryptocurrency, Digital Assets, Crypto Lending, and Financial Services.

BlockFi’s developer surface includes engineering blog, support, and 11 more developer resources.

11.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
0 APIs
CompanyCryptocurrencyDigital AssetsCrypto LendingFinancial ServicesFintechBlockchainBankruptcy EstateDefunctUnited States

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 11.3/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 5.7 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/blockfi: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Blockfi Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: blockfi
name: BlockFi
description: 'BlockFi was a Jersey City, New Jersey crypto-financial-services company founded in 2017 by Zac Prince and Flori
  Marquez that offered retail and institutional clients interest-bearing crypto accounts (the BlockFi Interest Account), USD
  loans collateralized by bitcoin and other digital assets, spot trading, and a bitcoin-rewards credit card, growing on a
  USD 350 million Series D in March 2021 that valued it at roughly USD 3 billion. The company filed for Chapter 11 bankruptcy
  protection in November 2022 in the wake of the FTX and Alameda Research collapse, and emerged in October 2023 not as an
  operating business but as a wind-down estate. Its customer web platform and mobile apps have been shut down, in-kind crypto
  distributions are administered through Coinbase and cash distributions through Kroll Restructuring Administration and Digital
  Disbursements, and blockfi.com is now a WordPress notice site carrying noindex/nofollow and dated estate updates rather
  than a product. There is no operating developer program: api.blockfi.com and every other developer, docs and app subdomain
  no longer resolve in DNS, the company GitHub organization holds zero public repositories, and no OpenAPI, GraphQL, AsyncAPI,
  MCP or agent-card document is served from any surviving BlockFi host.'
url: https://raw.githubusercontent.com/api-evangelist/blockfi/refs/heads/main/apis.yml
image: https://avatars.githubusercontent.com/u/38138582?v=4
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-08-07'
modified: '2026-08-07'
tags:
- Company
- Cryptocurrency
- Digital Assets
- Crypto Lending
- Financial Services
- Fintech
- Blockchain
- Bankruptcy Estate
- Defunct
- United States
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://blockfi.com/
- type: Blog
  url: https://blockfi.com/category/news/
- type: BlogRSS
  url: https://blockfi.com/feed/
- type: Support
  url: https://blockfi.com/contact/
- type: TermsOfService
  url: https://blockfi.com/category/terms/
- type: PrivacyPolicy
  url: https://blockfi.com/privacy/
- type: Licenses
  url: https://blockfi.com/licenses/
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/BlockFi
- type: SecondaryMarket
  url: https://forgeglobal.com/blockfi_stock/
- type: DomainSecurity
  url: security/blockfi-domain-security.yml
- type: Packages
  url: packages/blockfi-packages.yml
- type: Conformance
  url: conformance/blockfi-conformance.yml
- type: LLMsTxt
  url: llms/blockfi-llms.txt
x-enrichment:
  date: '2026-08-07'
  status: minimal
  artifacts_added: 5
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: BlockFi is a Chapter 11 wind-down estate, not an operating company - blockfi.com is a noindex WordPress notice site
    whose newest post is a 2025 distribution deadline, the historical api.blockfi.com host and every other developer, docs
    and app subdomain have been removed from DNS, and the company GitHub organization returns zero public repositories.
  evidence:
  - url: https://blockfi.com/
    status: 200
  - url: https://blockfi.com/openapi.json
    status: 404
  - url: https://blockfi.com/llms.txt
    status: 404
  - url: https://blockfi.com/.well-known/agent-card.json
    status: 404
  - url: https://blockfi.com/.well-known/security.txt
    status: 404
  - url: https://blockfi.com/developers
    status: 404
  - url: https://api.github.com/orgs/blockfi/repos
    status: 200
  checked: '2026-08-07'