BlockTower Capital

BlockTower Capital was an institutional digital-asset investment management firm founded in 2017, running crypto hedge fund and venture strategies and backed by investors including Andreessen Horowitz (a16z) and Union Square Ventures. As of April 30, 2025 the firm was acquired by and rebranded as Arca; blocktower.com now 301-redirects to ar.ca and BlockTower no longer operates as a standalone brand. The firm published no public API, developer portal, or SDK surface, so there is no API artifact set to enrich here beyond identity and a domain-security probe of the still-resolving legacy domain.

BlockTower Capital is profiled on the APIs.io network. Tagged areas include Company, Cryptocurrency, Digital Assets, Investment Management, and Blockchain.

🌐 Visit website 📡 Source on GitHub

6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyCryptocurrencyDigital AssetsInvestment ManagementBlockchainVenture CapitalHedge FundAcquired

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 6.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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

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/blocktower-capital: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: blocktower-capital
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/blocktower-capital.png
name: BlockTower Capital
description: BlockTower Capital was an institutional digital-asset investment management firm founded in 2017, running crypto
  hedge fund and venture strategies and backed by investors including Andreessen Horowitz (a16z) and Union Square Ventures.
  As of April 30, 2025 the firm was acquired by and rebranded as Arca; blocktower.com now 301-redirects to ar.ca and BlockTower
  no longer operates as a standalone brand. The firm published no public API, developer portal, or SDK surface, so there is
  no API artifact set to enrich here beyond identity and a domain-security probe of the still-resolving legacy domain.
url: https://raw.githubusercontent.com/api-evangelist/blocktower-capital/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- union-square-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-successor: arca
x-successor-url: https://www.ar.ca
x-acquired-date: '2025-04-30'
x-has-api: false
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Cryptocurrency
- Digital Assets
- Investment Management
- Blockchain
- Venture Capital
- Hedge Fund
- Acquired
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/blocktower-capital-domain-security.yml
- type: Website
  url: https://blocktower.com
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

BlockTower Capital

Kin Score

Security Posture 1

Blocktower Capital Domain Security

Resources

Access & Security 1

Company 1

Source (apis.yml)