Spindl

Spindl is a Web3 growth platform providing onchain attribution, web3-native analytics, audiences, short links, referrals, and ads in one place, helping developers understand where their users come from and how they behave across onchain apps. It offers a JavaScript/HTML SDK, Android and iOS SDKs, and a Server-to-Server REST API for campaign and attribution management, short (redirect) links, server-side custom event ingestion, and daily data exports. Positioned as Web3's answer to Mixpanel and Amplitude, Spindl is used by teams including Uniswap, Base, Safe, and Morpho. Originally added to the API Evangelist network as a portfolio-lead stub, now enriched from its published developer documentation.

Spindl publishes 2 APIs on the APIs.io network: Events API and Short Links API. Tagged areas include Company, Crypto Web3, Attribution, Analytics, and Marketing.

Spindl’s developer surface includes authentication, documentation, getting-started guide, engineering blog, signup flow, support, and 15 more developer resources.

🌐 Visit website 📡 Source on GitHub
44.1/100 thin ▬ flat Agent 51/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
2 APIs 1 MCP Servers
CompanyCrypto Web3AttributionAnalyticsMarketingGrowthSDKWeb3

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 44.1/100 · thin
Contract Quality 15.9 / 25
Developer Ergonomics 13.5 / 20
Commercial Clarity 4.7 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 51/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 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/spindl: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Spindl Events API

Server-side custom event ingestion for attribution.

Spindl Short Links API

Redirect links mapping a Spindl link to a destination URL.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

spindl-mcp.yml

MCP SERVER

Security Posture 2

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

Spindl Authentication

apiKey · 1 scheme

SECURITY

Spindl Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: spindl
name: Spindl
description: Spindl is a Web3 growth platform providing onchain attribution, web3-native analytics, audiences, short links,
  referrals, and ads in one place, helping developers understand where their users come from and how they behave across onchain
  apps. It offers a JavaScript/HTML SDK, Android and iOS SDKs, and a Server-to-Server REST API for campaign and attribution
  management, short (redirect) links, server-side custom event ingestion, and daily data exports. Positioned as Web3's answer
  to Mixpanel and Amplitude, Spindl is used by teams including Uniswap, Base, Safe, and Morpho. Originally added to the API
  Evangelist network as a portfolio-lead stub, now enriched from its published developer documentation.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://spindl.xyz/favicon.png
url: https://raw.githubusercontent.com/api-evangelist/spindl/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- multicoin-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 14
  pass: local-v1
tags:
- Company
- Crypto Web3
- Attribution
- Analytics
- Marketing
- Growth
- SDK
- Web3
apis:
- aid: spindl:spindl-events-api
  name: Spindl Events API
  description: Server-side custom event ingestion for attribution.
  humanURL: https://docs.spindl.xyz/spindl/techncial/api.md
  baseURL: https://api.spindl.xyz/v1
  tags:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/spindl-events-api-openapi.yml
  - type: APIReference
    url: https://docs.spindl.xyz/spindl/techncial/api.md
- aid: spindl:spindl-short-links-api
  name: Spindl Short Links API
  description: Redirect links mapping a Spindl link to a destination URL.
  humanURL: https://docs.spindl.xyz/spindl/techncial/api.md
  baseURL: https://api.spindl.xyz/v1
  tags:
  - Short Links
  properties:
  - type: OpenAPI
    url: openapi/spindl-short-links-api-openapi.yml
  - type: APIReference
    url: https://docs.spindl.xyz/spindl/techncial/api.md
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/spindl-domain-security.yml
- type: Authentication
  url: authentication/spindl-authentication.yml
- type: Packages
  url: packages/spindl-packages.yml
- type: SDKs
  url: packages/spindl-packages.yml
- type: MCPServer
  url: mcp/spindl-mcp.yml
- type: LLMsTxt
  url: llms/spindl-llms.txt
- type: Conventions
  url: conventions/spindl-conventions.yml
- type: ErrorCatalog
  url: errors/spindl-problem-types.yml
- type: Lifecycle
  url: lifecycle/spindl-lifecycle.yml
- type: Conformance
  url: conformance/spindl-conformance.yml
- type: DataModel
  url: data-model/spindl-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Website
  url: https://spindl.xyz
- type: DeveloperPortal
  url: https://docs.spindl.xyz
- type: Documentation
  url: https://docs.spindl.xyz
- type: GettingStarted
  url: https://docs.spindl.xyz/spindl/techncial/start-here.md
- type: Blog
  url: https://blog.spindl.xyz
- type: GitHubOrganization
  url: https://github.com/spindl-xyz
- type: SignUp
  url: https://app.spindl.xyz
- type: Support
  url: https://docs.spindl.xyz/spindl/contact-spindl.md
- type: PrivacyPolicy
  url: https://spindl.xyz/privacy-policy