Stamped.io

Fair

Agent Native Score

Free TierAPI Key AuthOpenAPI Spec

Stamped.io is a review and user-generated content platform that helps ecommerce businesses collect, manage, and display customer reviews and photos. It provides APIs for review management, authentication, and content syndication across multiple channels.

Categories: Reviews · Ugc · Ecommerce

#4 of 9 in Reviews · #4 of 4 in Ugc · #15 of 28 in Ecommerce

Checklist Breakdown

13 of 33 checks passed. 14 unscored.

Discovery 63%

Can an agent find and understand this tool without a web search?

✓ Published OpenAPI/Swagger spec

✗ Has llms.txt or llms-full.txt

✗ Has an MCP server (official or well-maintained)

✗ MCP server listed in a public registry

✓ API reference docs are publicly accessible

✓ Docs include runnable code examples

✓ Has a public changelog or release notes

✓ Has a public status page

Auth & Onboarding 50%

Can an agent create an account and get credentials without human intervention?

✗ Signup does not require CAPTCHA

✗ Signup does not require phone verification

✓ Supports API key auth (not only OAuth)

✗ API key obtainable without manual approval

✓ No mandatory billing info to start

✓ Can sign up without creating an organization

Pricing 100%

Can an agent operate autonomously without upfront payment or contracts?

✓ Has a free tier

✓ Usage-based pricing available

✓ No minimum contract or commitment

✓ Pricing page is public (no 'contact sales')

✓ Free tier sufficient for testing (not just a trial)

Agent Tooling Not yet scored

How well does the API work for non-human consumers?

— SDK available in 2+ languages

— Structured error responses (JSON with error codes)

— Idempotency support on write endpoints

— Pagination on list endpoints

— Webhook/event support

— Sandbox or test mode available

— Rate limit headers in responses

— Consistent REST resource naming

Reliability Not yet scored

Does the tool fail gracefully when an agent makes a mistake?

— Meaningful error messages (not just 500)

— 429 responses include Retry-After header

— Documented uptime SLA (99.9%+)

— Graceful degradation under rate limits

— Request IDs in responses for debugging

— API versioning supported

Reviewer Notes

Stamped.io has an OpenAPI spec and supports API key authentication, making basic agent integration possible. However, discovery is hindered by lack of MCP server or llms.txt file, and account creation requires manual setup through the web dashboard—agents cannot sign up autonomously. The API is reasonably functional for CRUD operations on reviews, but documentation could be clearer on rate limits and error handling. The free tier is helpful for experimentation, but reliability information is sparse and there's no sandbox environment for safe testing.

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