Instead of PromptGuard
PromptGuard alternatives
PromptGuard inspects application requests before they reach an LLM provider, with detectors for prompt injection, jailbreaks, PII, data exfiltration, and other threats. It can redact 43 PII types using reversible tokenization, and its SDK can instrument supported LLM calls without changing provider code. Deployment options include managed cloud, hybrid self-hosting, and air-gapped use. The Free plan includes 20,000 scans a month; Team costs $19 a month and adds a browser extension and desktop agents. PromptGuard says five OWASP LLM Top 10 risks are only partially covered, including provenance verification and vector-store isolation.
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AIRTA Red Team
Free plan Open source APILinuxMac+3Authorized adversarial assessments with attack logs and reports — AIRTA Red Team runs generated attack suites and exports evidence, while PromptGuard inspects requests in an application.
Free plan Visit site - 2
OpenSecureAI Scanner
Free plan Open source APILinuxMac+3Scanning untrusted text through developer tools — OpenSecureAI Scanner offers npm, CLI, GitHub Action, and REST interfaces, while PromptGuard adds request-path controls and deployment choices.
Free plan · paid from $49/mo Visit site - 3
Project Moonshot
Free plan APILinuxMac+3Benchmarking models and building custom safety tests — Project Moonshot benchmarks and red-teams models and applications, while PromptGuard focuses on inspecting requests before they reach providers.
Free plan Visit site - 4
Promptfoo
Free plan Open source APILinuxMac+3Evaluating prompts and red-teaming AI applications — Promptfoo combines multi-model prompt comparisons with red teaming and CI integrations, rather than PromptGuard's live request inspection.
Free plan Visit site - 5
PyRIT
Free plan APILinuxMac+3Custom automated and human-led red-team workflows — PyRIT provides modular attacks, converters, scorers, and memory for assessments; PromptGuard provides a security layer in the request path.
Free plan Visit site - 6
Augustus
Free plan LinuxMacSelf-hosted+1Security professionals scanning across many vulnerability categories — Augustus scans with 210+ probes and 90+ detectors, while PromptGuard focuses on request inspection, PII redaction, and deployment controls.
Free plan Visit site - 7
Basilisk
Free plan LinuxMacWindowsOWASP-mapped red teaming with CI pipeline checks — Basilisk offers evolving multi-turn attacks and CI pipeline failure on critical findings, unlike PromptGuard's runtime request protection.
Free plan Visit site - 8
CyberSecEval
Free plan Open source APILinuxMac+2 - 9
NVIDIA NeMo Guardrails
Free plan Open source APILinuxMac+2 - 10
Prompt Inspector
Free plan Open source APILinuxMac+3 - 11
GLACIS
Free plan APISelf-hostedWeb - 12
LLM Guard
Free plan APILinuxSelf-hosted - 13
Inferwall
Free plan APILinuxMac+1 - 14
Openlayer Guardrails
Free plan APISelf-hostedWeb - 15
Guardrails AI
Free plan APISelf-hostedWeb - 16
Sanctum Runtime
Free plan AndroidAPIiPhone+3 - 17
VotalAI
Free plan APISelf-hostedWeb - 18
GuardionAI
Free trial APILinuxMac+36.4 Visit site - 19
Google Cloud Secret Manager
Free plan Web - 20
Cisco Catalyst Center
Paid APILinuxMac+3 - 21
Check Point AI Guardrails
Paid APISelf-hostedWeb - 22
Vigil Guard
Free trial APIExtensionLinux+1 - 23
Cloudflare Advanced Certificate Manager
Paid APIWeb - 24
HiddenLayer AI Guardrails
Paid Self-hostedWeb - 25
Noma Security
Paid APISelf-hostedWeb - 26
Lasso AI Security Platform
Paid APIExtensionWeb - 27
SecureAI Guard
Paid APISelf-hostedWeb - 28
Straiker Defend AI
Paid APISelf-hostedWeb - 29
WitnessAI
Paid APIWebWindows - 30
ZeroTrusted AI Firewall
Paid Self-hostedWeb - 31
Prompt Security AI Red Teaming
Paid Self-hostedWeb
The alternatives below emphasize assessment, red teaming, benchmarking, or evaluation rather than inspecting live requests in an application. Some offer attack logs and reports, custom tests, multi-turn strategies, or CI workflows. When choosing, decide whether you need runtime filtering or a way to probe models and applications before or after changes. Compare supported targets and attack methods, report formats, deployment options, and whether the alternative requires your own provider key. Also consider what PromptGuard's plans include, such as scan limits and retention, against the workflow you need; the products here do not all serve as direct replacements for request-path protection.