Labelbox

39
Fair
Agent Native Score
Free TierAPI Key AuthOpenAPI Spec

Labelbox is a data labeling and annotation platform that enables teams to prepare high-quality training data for machine learning models. It provides tools for image, text, video, and document annotation with collaboration features and quality management.

Categories: Data Labeling · Ml Ops
#1 of 2 in Data Labeling · #2 of 5 in Ml Ops
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

Labelbox has an OpenAPI specification and sandbox environment, which aids discoverability somewhat, but lacks an MCP server and llms.txt file. The API is reasonably well-documented for querying and managing labeling projects, though agent tooling could be more comprehensive for automation workflows. Account creation requires manual signup without programmatic options. The platform is reliable with good uptime, but the free tier is limited and agent autonomy would be constrained by auth requirements and potential rate limits on the API.

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