Blockspring

Blockspring was a data integration and enrichment platform that let developers and spreadsheet users run cloud functions and connect to hundreds of third-party APIs and data services from Google Sheets, Excel, and via its own API. Founded around 2014 and originally Y Combinator backed, it was acquired by Coda (Krypton) in 2017 and surfaced here as an a16z portfolio-associated company. All Blockspring services -- the website tooling, integrations, plugins, APIs, and data enrichment -- were permanently shut down on December 29, 2022, with active subscriptions cancelled and prorated refunds issued. This profile is retained as a historical record; there is no live developer surface, OpenAPI, SDK, or documentation to enrich.

Blockspring is profiled on the APIs.io network. Tagged areas include Company, Data, Integration, Enrichment, and Spreadsheets.

🌐 Visit website 📡 Source on GitHub

6.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

0 APIs

Company Data Integration Enrichment Spreadsheets Data Services Retired

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 6.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Access Clarity 0.0 / 20

Operational Transparency 1.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Deprecation

Deprecation

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: blockspring
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/blockspring.png
name: Blockspring
description: Blockspring was a data integration and enrichment platform that let developers and spreadsheet users run cloud
  functions and connect to hundreds of third-party APIs and data services from Google Sheets, Excel, and via its own API.
  Founded around 2014 and originally Y Combinator backed, it was acquired by Coda (Krypton) in 2017 and surfaced here as an
  a16z portfolio-associated company. All Blockspring services -- the website tooling, integrations, plugins, APIs, and data
  enrichment -- were permanently shut down on December 29, 2022, with active subscriptions cancelled and prorated refunds
  issued. This profile is retained as a historical record; there is no live developer surface, OpenAPI, SDK, or documentation
  to enrich.
url: https://raw.githubusercontent.com/api-evangelist/blockspring/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
x-status: shutdown
x-shutdown-date: '2022-12-29'
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Data
- Integration
- Enrichment
- Spreadsheets
- Data Services
- Retired
common:
- type: Website
  url: https://blockspring.com
- type: Lifecycle
  url: lifecycle/blockspring-lifecycle.yml
- type: Deprecation
  url: https://blockspring.com
  name: Blockspring Shutdown Notice
- type: DomainSecurity
  url: security/blockspring-domain-security.yml
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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