Kosmoy runs the control layer — a single AI Gateway for LLM, MCP, and agent-to-agent traffic with guardrails, RBAC, routing, inventory, and Kubernetes-native agent containment. EVE CoreGuard is the deterministic verdict a control layer can call: zero-LLM rule evaluation attributed to a named rule in a versioned regulatory pack, emitted as a cryptographically signed, offline-verifiable certificate. These are adjacent layers, and they compose.
Category: AI management platform — AI Gateway, inventory, observability & agent containment. · Kosmoy official site ↗
Kosmoy is an AI management platform for regulated enterprises, deployed as single-tenant software in the customer's own Kubernetes (Azure, AWS, GCP, or on-prem, including air-gapped estates). Its AI Gateway is a unified policy enforcement point across LLM, MCP, and A2A traffic — guardrails for toxic language, PII, prompt injection, EU AI Act risk and custom policies, plus RBAC, cost-aware model routing, conversation logging, and an OpenAI-compatible API across providers. Alongside it sit AI Inventory, AI Monitoring & Observability, and Action Capsule, a Kubernetes-native sandbox that contains autonomous agents.
That is genuinely a runtime control layer, not a post-hoc GRC workflow — Kosmoy inspects prompts and responses in the request path. The distinction from EVE CoreGuard is therefore not when the check happens but how the verdict is produced and what it proves. Kosmoy documents deterministic fast-path checks (regex, list-based PII) at sub-10 ms alongside fine-tuned small-language-model guardrails at sub-200 ms, and an agentic router that uses a small fine-tuned model as a “judge.”
EVE CoreGuard's enforcement verdict contains no model at all: deterministic rule evaluation that returns the same ALLOW / BLOCK / MODIFY for the same input every time, attributed to a named rule in a versioned regulatory pack, and emitted as an ECDSA P-384-signed certificate a third party can verify offline and replay. Cryptographic per-decision signing, deterministic replay, and runtime attestation are a publicly documented capability not identified for Kosmoy as of August 2026.
The practical pattern is composition, not replacement: Kosmoy as the gateway and containment layer that intercepts every AI call, EVE CoreGuard as the deterministic decision engine and evidence layer behind it for the regulated subset of those calls.
A single policy enforcement point covering model calls, MCP servers, and agent-to-agent traffic, exposing one OpenAI-compatible API across providers — so swapping models is a configuration change rather than a rewrite in every app. EVE CoreGuard is a decision engine, not a multi-protocol traffic gateway.
A Kubernetes-native sandbox that contains autonomous agents, private models, and MCP servers at runtime. Containment and blast-radius control of an executing agent is infrastructure work an enforcement verdict does not perform.
Registration of every AI use case, model, agent and MCP server, with unified cost/usage/feedback dashboards and cost-aware routing that sends simple prompts to small models. EVE CoreGuard does not aim to be your AI portfolio system of record or your FinOps layer.
Compared on the dimensions that distinguish a deterministic governance enforcement plane from Kosmoy.
| Dimension | EVE CoreGuard | Kosmoy |
|---|---|---|
| Primary purpose | Deterministic pre-execution governance & enforcement (the enforcement plane) | AI management platform — gateway, guardrails, inventory, observability, agent containment |
| Enforcement timing | Pre-execution gate — decides ALLOW / BLOCK / MODIFY before the action runs | ✓ In-path at the gateway — inspects prompts and responses before they leave |
| Decision model | Deterministic rule evaluation — same input always yields the same verdict | Mixed — deterministic fast-path checks (regex, list-based PII) plus fine-tuned SLM guardrails; agentic router uses a small fine-tuned model as a “judge” |
| Zero-LLM enforcement verdict | ✓ Zero-LLM enforcement verdict (Layer A) | Partial — regex / list-based checks are model-free; policy & AI Act guardrails use fine-tuned SLMs |
| Fail-closed by default | ✓ Fail-closed by default | — Default behavior on guardrail or infrastructure failure: Publicly documented capability not identified. |
| Cryptographic decision certificate | ✓ ECDSA P-384-signed decision certificate per verdict | — Publicly documented capability not identified. |
| Offline / replay verification | ✓ Offline + replay verification | — Publicly documented capability not identified. |
| Runtime attestation | ✓ Runtime attestation (attestation-bound execution authority) | — Publicly documented capability not identified. |
| Signed audit lineage | ✓ Signed audit lineage (signed audit bus + Merkle roots) | Event log — every guardrail decision, approval and override logged; cryptographic signing / tamper-evidence not publicly documented |
| Executable regulatory packs | ✓ Executable packs: ECOA/Reg B, FCRA, SR 26-2, HIPAA, EU AI Act, NIST AI RMF | Partial — EU AI Act risk guardrail and AI Act dossier; ISO/IEC 42001 evidence |
| Multi-protocol gateway (LLM / MCP / A2A) | Out of scope — decision engine, called by a gateway | ✓ Core strength — one policy point across all three |
| Agent runtime containment / sandboxing | Out of scope — governs the decision, not the container | ✓ Core strength — Action Capsule (Kubernetes-native) |
| Deployment | SaaS, VPC, or on-prem — no data leaves your tenant | Single-tenant in your own Kubernetes — Azure, AWS, GCP, on-prem, air-gapped |
✓ = publicly documented · Partial = partial / configurable · — = "Publicly documented capability not identified."
Both products sit in the request path, so the honest difference is not where the check happens but what the verdict is made of. Kosmoy is the control layer: it terminates the traffic, applies guardrails, enforces RBAC, routes by cost, and contains the agent. Several of its checks are model-based by design — fine-tuned SLM guardrails and an SLM judge for routing — which is a reasonable engineering trade-off for open-domain safety breadth. EVE CoreGuard is built for the narrower case where a verdict must be reproducible and provable: a zero-LLM deterministic rule evaluation, attributable to a named rule in a versioned regulatory pack, sealed in a signed certificate an examiner can verify offline and replay years later. A gateway that returns a guardrail decision is the right tool for controlling AI traffic; it is not, by construction, a replayable compliance control. Run Kosmoy for the control layer and EVE CoreGuard for the regulated decisions that must survive an examination.
Kosmoy's AI Gateway is the network policy enforcement point — one endpoint in front of every model, MCP server, and agent. EVE CoreGuard is not a gateway; it is the deterministic decision the gateway (or the application) calls before the action is allowed to run.
Kosmoy documents deterministic fast-path checks (sub-10 ms regex / list-based PII) plus fine-tuned SLM guardrails (sub-200 ms) and an SLM judge for routing. EVE CoreGuard's Layer A verdict runs no model at all — the same input yields the same decision, attributed to a named rule.
Kosmoy logs every guardrail decision, approval and override as an event, feeding an Insights dashboard and an EU AI Act dossier. EVE CoreGuard emits an ECDSA P-384-signed per-decision certificate that a third party can verify offline, without calling EVE, and replay deterministically.
Kosmoy intercepts and contains; EVE CoreGuard decides and proves. A regulated estate can run the Kosmoy gateway for universal coverage and route the regulated subset — lending, healthcare, trading decisions — through EVE CoreGuard for a deterministic, signed verdict.
Choose Kosmoy when your primary need is an enterprise AI control layer you run yourself: one gateway across LLM, MCP and agent-to-agent traffic with guardrails, RBAC, cost-aware routing and logging enforced centrally, an inventory of every AI use case and agent, unified observability, and Kubernetes-native containment for autonomous agents — deployed single-tenant in your own cloud or fully air-gapped. EVE CoreGuard does not attempt to be that platform. Learn more at Kosmoy ↗
Choose EVE CoreGuard when a specific class of decision must be deterministic and provable rather than centrally controlled: the same verdict for the same input with no model in the verdict path, attributed to a named rule in a versioned regulatory pack (ECOA/Reg B, SR 26-2, HIPAA, EU AI Act), fail-closed, and emitted as a signed certificate an examiner can verify offline and replay. Most regulated buyers want the control layer and the evidence layer.
Book a review and we will walk your use case through EVE CoreGuard — including a signed decision record you can verify offline. Pilot from $37,500; Enforcement from $150,000/yr.
Comparison based on publicly available product documentation as of August 2026; competitor capabilities evolve — verify current specifics with each vendor. Capabilities not found in public documentation are marked "Publicly documented capability not identified." Each product named is a trademark of its respective owner; this independent comparison is not affiliated with or endorsed by them. Related: All comparisons · Benchmark · EVE CoreGuard.