# Grin

**Canonical:** https://apis.io/providers/grin/  
**Website:** https://grin.co  
**APIs profiled:** 2

GRIN is a creator management and influencer marketing platform for consumer and eCommerce brands, operating in the creator economy. Brands use GRIN to discover creators, manage relationships and content, run affiliate and ambassador programs, handle creator payments, track performance, and measure ROI at scale. The product line includes GRIN Classic, a manual creator and affiliate management platform, and Gia, an AI assistant that automates affiliate program management. GRIN exposes a bi-directional REST API (documented on Stoplight at api.grin.co) so a brand's own software can synchronize creators, content, and program data with GRIN, alongside native integrations for Shopify, Klaviyo, PayPal, Slack, and other commerce tools.

## Kin Score — 40.7 / 100 (developing)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 40.7).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 45.2 |
| Commercial Clarity | 92.1 |
| Access Clarity | 92.1 |

## Agent readiness — 8.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (2)

- **GRIN API** — GRIN's bi-directional REST API lets a brand's own software communicate with GRIN to synchronize creators, content, programs, and reporting data. Reference documentation is publi...
- **GRIN Gia MCP Server** — GRIN's hosted remote Model Context Protocol server for Gia, its AI agent for creator marketing. GRIN documents that "Gia connects to Claude, ChatGPT, and other assistants that s...

## MCP servers (1)

- **Grin MCP Server**

## Security (4)

- **Grin Authentication** — openIdConnect/oauth2 · 2 schemes
- **Grin Domain Security** — TLSv1.3 · HSTS · DMARC
- **Grin Vulnerability Disclosure** — disclosure policy published
- **Grin Trust Center** — SOC 2, GDPR

## Plans (1)

- **Grin Plans Pricing**

## Tags

Company, Influencer Marketing, Creator Economy, Creator Management, Affiliate Marketing, Marketing, Social-Media, E-Commerce

---

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