Free TierAPI Key AuthOpenAPI Spec
Uploadcare is a file upload and management platform that handles image optimization, storage, and delivery for web and mobile applications. It provides APIs for programmatic file uploads, transformations, and media management.
#2 of 2 in File Management · #17 of 32 in Media · #7 of 11 in Storage
Checklist Breakdown
13 of 33 checks passed.
14 unscored.
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
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
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)
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
Does the tool fail gracefully when an agent makes a mistake?
—
Meaningful error messages (not just 500)
—
429 responses include Retry-After header
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Documented uptime SLA (99.9%+)
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Graceful degradation under rate limits
—
Request IDs in responses for debugging
—
API versioning supported
Reviewer Notes
Uploadcare has solid REST API documentation and OpenAPI specs, making discovery reasonable for file upload/management tasks. However, account creation requires human intervention (email signup with verification), limiting autonomous agent deployment. The API tooling is competent with clear endpoints for uploads, file operations, and metadata retrieval, but lacks an MCP server. Reliability is strong with good uptime and clear error responses. The free tier caps at 100 files/month, which is restrictive for autonomous agents needing sustained operation; paid tiers are usage-based but require upfront credit card setup.
Let your agents find tools like Uploadcare
Install the Agent Native Registry MCP server. Your agents can search, compare, and score tools mid-task.
claude mcp add --transport http agent-native-registry https://agentnativeregistry.com/api/mcp