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. Enterprise-only contact-center products (Cresta, PolyAI) score low on SME-Fit because of contact-sales pricing. They sit at series_a or growth on the stage filter rather than getting an auto-DQ.

22 tools in this category. Curated and scored by Magpie's six-dimension rubric.

Audited by Jack Phillips · Updated June 19, 2026

22 tools

LlamaIndex
RAG and agent framework with managed cloud
AgentsConsider with caveats
Score
3.8
Pricing
$50/mo
Stage
Seed → Growth
Features
APIFree tier
Visit site
Relevance AI
No-code multi-agent workforce builder
AgentsConsider with caveats
Score
3.8
Pricing
$29/mo
Stage
MVP → Growth
Features
APIFree tier
Visit site
Crew AI
Open-source multi-agent framework
AgentsConsider with caveats
Score
3.7
Pricing
Free
Stage
Seed → Growth
Features
APIFree tier
Visit site
LangGraph
Multi-agent orchestration framework with state graphs
AgentsConsider with caveats
Score
3.7
Pricing
$39/mo
Stage
Seed → Growth
Features
APIFree tier
Visit site
LangSmith
Observability and evaluation for LLM apps
AgentsConsider with caveats
Score
3.7
Pricing
$39/mo
Stage
Seed → Growth
Features
APIFree tier
Visit site
MLflow
Open-source AI engineering platform for agents, LLMs and ML models
AgentsConsider with caveats
Score
3.6
Pricing
Free
Stage
MVP → Growth
Features
APIFree tier
Visit site
Tavus
Build conversational video agents
AgentsConsider with caveats
Score
3.5
Pricing
$59/mo
Stage
MVP → Growth
Features
MCPAPIFree tier
Visit site
E2B
Cloud sandboxes for AI agents
Agents
Score
3.4
Pricing
$150/mo
Stage
Seed → Growth
Features
APIFree tier
Visit site
Stack AI
Enterprise AI agent platform
Agents
Score
3.4
Pricing
Contact
Stage
Seed → Growth
Features
API
Visit site
Vellum
Build agents from natural-language descriptions
Agents
Score
3.4
Pricing
$25/mo
Stage
Seed → Growth
Features
APIFree tier
Visit site
Alta
Autonomous prospecting agent layer
Agents
Score
3.3
Pricing
Contact
Stage
Seed → Growth
Features
API
Visit site
Browser Use
AI agent that controls a real browser
Agents
Score
3.3
Pricing
Free
Stage
MVP → Growth
Features
APIFree tier
Visit site
OpenClaw
Open-source personal AI assistant
Agents
Score
3.3
Pricing
Free
Stage
Solopreneur → Seed
Features
MCPAPIFree tier
Visit site
Synthflow
No-code voice agent builder for sales and support — pay-per-minute, no monthly minimum
Agents
Score
3.3
Pricing
Free
Stage
Solopreneur → Seed
Features
APIFree tier
Visit site
Browserbase
Web browsers for AI agents
Agents
Score
3.2
Pricing
$39/mo
Stage
Seed → Growth
Features
MCPAPI
Visit site
Retell AI
Composable voice agent infrastructure — BYO LLM and TTS, SOC 2 included, HIPAA-ready
Agents
Score
3.1
Pricing
n/a
Stage
Seed → Growth
Features
API
Visit site
Vapi
Developer-first voice AI agent platform — 4,200+ API config points used by 500K builders
Agents
Score
3.1
Pricing
n/a
Stage
MVP → Growth
Features
API
Visit site
Clawvisor
Authorization layer for AI agents
Agents
Score
2.9
Pricing
Free
Stage
MVP → Growth
Features
APIFree tier
Visit site
Hyperbrowser
Headless browser infrastructure for AI agents
Agents
Score
2.9
Pricing
$30/mo
Stage
Seed → Growth
Features
MCPAPI
Visit site
MultiOn
AI agent that browses the web for you
Agents
Score
2.7
Pricing
$20/mo
Stage
MVP → Seed
Features
API
Visit site
Bland AI
Phone-call AI agents from $0.14/min — start calling without a platform fee
Agents
Score
2.6
Pricing
Free
Stage
MVP → Series A
Features
API
Visit site
Do Anything
An autonomous AI agent that does the work
Agents
Score
1.8
Pricing
Contact
Stage
MVP → Growth
Features
Visit site

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