4 AI & Machine Learning APIs with verified auth, pricing and rate limits. 4 offer a free tier; 2 document an MCP server. Every field carries the source URL that states it.
| API | Category | Auth | Pricing | MCP | Free | Confidence |
|---|---|---|---|---|---|---|
| Not Human Search nothumansearch.ai | AI & Machine Learning | api_key | freemium | ● | ● | high |
| Audexum audexum.com | AI & Machine Learning | bearer_token | freemium | — | ● | high |
| ElevenLabs API elevenlabs.io | AI & Machine Learning | api_key | freemium | — | ● | high |
| Meilisearch meilisearch.com | AI & Machine Learning | api_key | usage_based | ● | ● | medium |