# Spindl

**Canonical:** https://apis.io/providers/spindl/  
**Website:** https://spindl.xyz  
**APIs profiled:** 3

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. A separate publisher-facing Ads API on e.spindlembed.com serves targeted onchain ad recommendations and records impressions and clicks, with a React BannerEmbed component and a hosted iframe as no-code alternatives. Spindl announced in January 2025 that it was joining Coinbase and now operates as a product team inside Base. Originally added to the API Evangelist network as a portfolio-lead stub, now enriched from its published developer documentation and live host probes.

## Kin Score — 42.3 / 100 (developing)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.5 from 41.8).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 64.5 |
| Governance | 11.5 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 56.0 |
| Commercial Clarity | 23.7 |

## Agent readiness — 45.7 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| MCP Server | derived |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (3)

- **Spindl Events API** — Server-side custom event ingestion for attribution.
- **Spindl Short Links API** — Redirect links mapping a Spindl link to a destination URL.
- **Spindl Ads API** — Publisher-facing onchain advertising API. Fetch targeted ad recommendations for a wallet address at a named placement, render the returned unit, and post impressions and clicks ...

## MCP servers (1)

- **spindl-mcp.yml**

## Security (2)

- **Spindl Authentication** — apiKey · 2 schemes
- **Spindl Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Spindl Plans Pricing**

## Tags

Company, Crypto Web3, Attribution, Analytics, Marketing, Growth, SDK, Web3

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/spindl/). Scores are computed from the provider's own public artifacts under a published rubric.