Static workflow tools (Zapier, Make, n8n) hit a ceiling: they cannot decide. Agentic platforms cross the line — workflows that read context, choose the right path, and adapt mid-run. Seven contenders are battling for the new default. Here is the head-to-head.
What changed
Classic automation: "when X happens, do Y". Agentic automation: "when X happens, decide what to do based on context, then do it, then verify, then maybe loop". Three new capabilities:
- Branching by content, not by rule.
- Multi-step plans the platform composes, not the user.
- Verification loops — re-check that the action did what was needed.
Use cases that were edge for Zapier — content moderation, complex routing, document processing — become native.
The 7 platforms
1. Lindy
Agent-builder framework. Strong on email and calendar workflows. Good "no-code" UX.
- Strengths: UX, ready-made "skills", solid templates.
- Weaknesses: lock-in; less control over the underlying agent.
2. Relay.app
Hybrid: human-in-the-loop checkpoints baked in. Good for ops workflows where review matters.
- Strengths: explicit human steps, audit-friendly.
- Weaknesses: slower iteration than fully-autonomous tools.
3. n8n + AI nodes
n8n added agent nodes. The flexibility of n8n with the new capability layered in.
- Strengths: self-host, MIT licence, full control.
- Weaknesses: you assemble the agent; not turnkey.
4. Zapier Central
Zapier's agentic layer. Tries to bridge the existing Zap ecosystem.
- Strengths: integration count, familiar UX.
- Weaknesses: thin agent-side capabilities, expensive at scale.
5. Vapi
Voice-first agentic flows. Phone calls, screening, scheduling.
- Strengths: voice quality, low-latency.
- Weaknesses: narrow modality.
6. Tines
Security-ops-focused. Strong on case management, runbooks, response playbooks.
- Strengths: security workflows, audit, RBAC.
- Weaknesses: vertical (security) focus.
7. Custom on the Claude Agent SDK
Not a platform but the option many teams pick after evaluating. Build exactly what you need.
- Strengths: maximum control, no vendor lock.
- Weaknesses: engineering investment.
Comparison
| Platform | No-code | Self-host | HITL | Voice | Cost (relative) |
|---|---|---|---|---|---|
| Lindy | Yes | No | Limited | No | Medium |
| Relay.app | Yes | No | Best | No | Medium |
| n8n + AI | Mixed | Yes | Yes | No | Low |
| Zapier Central | Yes | No | Yes | No | High |
| Vapi | Mixed | No | Limited | Yes | Low |
| Tines | Yes | Yes | Best | No | High |
| Custom (SDK) | No | Yes | Custom | Plug-in | Engineering time |
Picking by use case
| Use case | Pick |
|---|---|
| Email automation | Lindy |
| Approval-heavy workflows | Relay.app |
| Self-hosted general | n8n + AI |
| Migrating from existing Zaps | Zapier Central |
| Voice / phone | Vapi |
| Security ops / SOAR | Tines |
| Anything bespoke | Claude Agent SDK |
The migration question
Most teams migrating from Zapier discover:
- 30–60% of existing Zaps are simpler than they thought; rebuild as native agent flows.
- 20% can stay — they were already simple if-this-then-that.
- The rest were band-aids — replace with one agentic flow.
Plan for a quarter of work for non-trivial estates.
Cost reality
Agentic flows cost more per run than Zaps because of LLM tokens. Typical numbers:
| Workflow type | Per-run cost |
|---|---|
| Simple route | $0.001–0.003 |
| Document classify + route | $0.01–0.05 |
| Multi-step plan with verification | $0.10–0.50 |
Plan budgets accordingly. The savings come from automating workflows that were not viable at the static tier.
Debuggability matters more than ever
The platform's trace UI is the make-or-break feature once you are in production. Two-step rule:
- Can you replay a failed run? See replay debugging tools.
- Can you diff two runs of the same workflow?
Platforms that fail either question become unworkable past 50 active flows.
Common mistakes
- Migrating everything at once — wave it across teams; iterate.
- No HITL for sensitive flows — the regret is large.
- Picking a no-code platform when you need control — the lock-in becomes the bottleneck.
- Ignoring the cost-per-run — multiply by your volume before committing.
Where this is heading
Two trends by 2027: visual no-code that compiles to MCP server fleets (best of both worlds), and verticalised platforms displacing horizontal ones (legal, finance, ops each get specialised tools). Pick a platform you can leave; stay agile.