Category · AI agents
AI agents for ops, support, and sales.
The agent category exploded in 2024-25. Magpie covers the four meaningful slices: voice agents for phone calls (Vapi, Bland, Retell, Synthflow), support chatbots and autonomous resolution, sales-task agents, and general-purpose research agents. We've deliberately skipped most enterprise-only contact-center products (Cresta, PolyAI) since they auto-DQ on Magpie's SMB pricing rubric.
17 tools in this category. Curated and scored by Magpie's six-dimension rubric.
LlamaIndex
RAG and agent framework with managed cloud
$50/mo·MVP → Growth
Relevance AI
No-code multi-agent workforce builder
$29/mo·MVP → Series A
Crew AI
Open-source multi-agent framework
Free·Solopreneur → Growth
LangGraph
Multi-agent orchestration framework with state graphs
$39/mo·MVP → Growth
LangSmith
Observability and evaluation for LLM apps
$39/mo·MVP → Growth
E2B
Cloud sandboxes for AI agents
$150/mo·MVP → Growth
Stack AI
Enterprise AI agent platform
Contact·Series A → Growth
Vellum
Build agents from natural-language descriptions
$25/mo·MVP → Growth
Alta
Autonomous prospecting agent layer
Contact·Series A → Growth
Browser Use
AI agent that controls a real browser
Free·MVP → Growth
Synthflow
No-code voice agent builder for sales and support — pay-per-minute, no monthly minimum
Free
Browserbase
Web browsers for AI agents
$39/mo·MVP → Growth
Retell AI
Composable voice agent infrastructure — BYO LLM and TTS, SOC 2 included, HIPAA-ready
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Vapi
Developer-first voice AI agent platform — 4,200+ API config points used by 500K builders
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Hyperbrowser
Headless browser infrastructure for AI agents
$30/mo·MVP → Growth
MultiOn
AI agent that browses the web for you
$20/mo·MVP → Series A
Bland AI
Phone-call AI agents from $0.14/min — start calling without a platform fee
Free
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