Phrony alternatives

Tools that do what Phrony does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Phrony.

Read 2026-10-22

With a free plan or free to use: Squidbrake, naturali, Prefactor, Orq, Preloop, AgentHelm.

10 alternativesUnlike Phrony

#1
Squidbrake Agents
Checks each tool call an AI agent makes against YAML rules and holds risky ones for human approval before they run.
Free plan
2.7k installs/mo
Active
From $499/mo
#2
naturali Agents MCP · sign-in
Hosts versioned AI agents that draw on your documents and tools, reply on WhatsApp or Discord, and log every model turn and tool call.
Free planAlso: Agents
2
Active
From $49/mo
#3
Prefactor Agents
Evaluates and monitors AI agent runs in production, catching failures and enforcing policies at runtime.
Free planAlso: Monitoring, Agents
550
Active
From $499/yr
2024
#4
Orq Agents MCP · sign-in
Routes every LLM and tool call through one gateway, applying budget caps, PII redaction, fallbacks and audit trails across 500 models.
Free planAlso: Monitoring
3.1k
Active
From ≈ $39/user/mo
2023
#5
Duvera Agents MCP · open
Runs every AI agent action through a policy check and records it as a cryptographically signed, tamper-evident receipt.
Also: Compliance, SecurityOwn MCP server
1
Active
#6
Aqta Agents MCP · open
Checks each AI agent action against your rules and a person's prior approval, then signs the allowed or refused decision as a verifiable record.
Also: Compliance, AgentsOwn MCP server
12
Active
Contact sales
2026
#7
Tandem Agents MCP · open
Runtime that checks each agent action against data scope, tool policy and approval rules before it executes, and logs the decision.
Own MCP server
5
Active
#8
Maetra Agents
Binds each AI agent action to a policy decision and signed receipt, routing risky requests to human approval before execution.
Also: Compliance, Security
1
Active
From $20/mo
#9
Preloop Agents
Manages and governs AI agents with tool access control, cost tracking, and human approvals.
Free planAlso: Agents, Monitoring
5
Active
From $12/mo
2025
#10
AgentHelm Agents
Provides a shared memory repository and control plane for AI agents with audit trails, approvals, and budget guardrails.
Free planAlso: Agents, Workflow automation
36 installs/mo
Maintained
From ≈ $5.28/mo

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How this list is made: the words Phrony is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.