#1
n8n Visual workflow + agent builder (open source)
Best value overall: free to self-host, and cloud pricing counts whole workflow runs, not steps.
- Price
- Cloud Starter €20/mo, Pro €50/mo (billed annually); Business €667/mo; Enterprise custom
- Free tier
- Yes — free self-hosted Community Edition; cloud free trial (1,000 executions, no card)
- Best for
- Builders who want agents + automations they fully control
- Billed per full workflow execution, regardless of steps
- Agent node, MCP client/server, human approval for tool calls
- Cloud prices are in EUR; Business tier is a big jump
- Self-hosting means you run the server
Source: n8n.io/pricing (checked Oct 16, 2026)
#2
Zapier Agents No-code agents across 9,000+ apps
Easiest place for a non-coder to get a working agent, with a real free allowance.
- Price
- Agents Pro from ~$33.33/mo (annual); core Zapier Pro from $19.99/mo (annual, 750 tasks)
- Free tier
- Yes — 400 agent activities/mo free (10 per run); core Free plan 100 tasks/mo
- Best for
- Non-coders who want agents that act in the apps they already use
- Biggest app catalog here
- Agent activities billed separately from Zap tasks
- Costs climb fast at higher volumes
- Free runs capped at 10 activities
Source: zapier.com/pricing (checked Oct 16, 2026)
#3
OpenAI Agents SDK Code-first agent framework (Python/TypeScript)
Lightest code framework to learn; the SDK is free and you pay only for model usage.
- Price
- SDK free and open source; model calls billed at OpenAI API rates
- Free tier
- Yes — the SDK itself is free; API usage is paid
- Best for
- Developers who want a small, clean agent toolkit
- Small set of primitives: agents, handoffs, guardrails, tracing
- Successor to OpenAI's Swarm experiment
- You need to code
- API costs depend entirely on your usage
Source: openai.github.io/openai-agents-python (checked Oct 16, 2026)
#4
LangGraph + LangSmith Code framework + hosted tracing/deploy (LangChain)
Most control for complex, stateful agents, with a free LangSmith tier for tracing.
- Price
- LangGraph open source; LangSmith Developer $0 (1 seat), Plus $39/seat/mo + pay-as-you-go
- Free tier
- Yes — LangSmith Developer: 5k base traces/mo free
- Best for
- Engineers building multi-step, stateful agents for production
- Fine-grained control over agent state and flow
- Plus includes 1 free small serverless deployment
- Steeper learning curve
- Usage billing (LSUs) takes effort to predict
Source: langchain.com/pricing (checked Oct 16, 2026)
#5
CrewAI Multi-agent framework + visual Studio
Good free entry into multi-agent “crews”, but paid scale is enterprise-only.
- Price
- Basic Free; Enterprise custom (no public paid self-serve price)
- Free tier
- Yes — Free: visual editor, AI copilot, 50 workflow executions/mo
- Best for
- Builders experimenting with teams of cooperating agents
- Visual editor plus an open-source Python framework
- Export workflows as an MCP server
- Only 50 free executions a month
- No self-serve paid tier between Free and Enterprise
Source: crewai.com/pricing (checked Oct 16, 2026)
#6
Gumloop No-code AI workflow + agent builder
Polished no-code builder with 35+ models, but no free plan on its pricing page.
- Price
- Pro from $37/mo (20k credits/mo); Enterprise custom
- Free tier
- Trial only — 14-day free trial of Pro
- Best for
- Teams automating ops work without code
- Unlimited agents and seats on Pro
- Bring your own API keys
- No ongoing free plan shown
- 8% orchestration fee listed on the plan
Source: gumloop.com/pricing (checked Oct 16, 2026)
#7
Lindy AI assistant/teammate for email, meetings, Slack
Strong ready-made assistant, but the free start lasts only 7 days.
- Price
- Team $49.99/user/mo (5,000 credits each); top-ups $10 per 1,000 credits; Enterprise custom
- Free tier
- Trial only — $50 in free credits for 7 days, no card
- Best for
- Busy professionals who want an assistant, not a builder
- Asks for approval before outside actions
- 1,500+ integrations, model choice per task
- Every active user is a paid seat
- Credit use varies a lot by task
Source: lindy.ai/pricing (checked Oct 16, 2026)
#8
Relevance AI “AI workforce” agent platform for GTM teams
Capable for sales/GTM teams, but the Free plan was retired in Sept 2026.
- Price
- Pro $19/mo annual or $29/mo monthly (2,500 actions + $20 vendor credits); Team & Enterprise higher
- Free tier
- No — Free plan retired for new signups
- Best for
- Sales and go-to-market teams building agent workforces
- Bring your own API keys
- Scheduling, chat mode, smart escalations on Pro
- No free plan or trial now
- Main pricing page shows only Enterprise; self-serve prices live in docs
Source: relevanceai.com/docs/get-started/pricing (checked Oct 16, 2026)