# Emissary vs Gloo Gateway

| Attribute | Emissary | Gloo Gateway |
|---|---|---|
| **Vioscale score** | 50.2 (54% (medium)) | 51.4 (33% (low)) |
| activity.commits_last_30d | 31 | - |
| adoption.dependent_repos | 4 | - |
| adoption.github_stars | 4,519 | - |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | An open-source, CNCF incubation project providing a Kubernetes-native API gateway with Layer 7 load balancing and ingress capabilities for microservices, built on Envoy Proxy. | Enterprise-grade API gateway delivering high performance with flexibility for self-managed deployment. Handles 400k+ requests/sec, 7+ years in production, built on open-source Envoy with CNCF governance. |
| features.capabilities | `{"mtls":true,"hosting":"self","k8s_native":true,"grpc_support":true,"observability":true,"rate_limiting":true}` | `{"hosting":"self","k8s_native":true,"grpc_support":true,"observability":true,"graphql_gateway":true,"request_transformation":true}` |
| integrations.count | 7 | - |
| integrations.list | `[{"name":"Consul"},{"name":"Linkerd"},{"name":"Istio"},{"name":"Knative"},{"name":"Grafana"},{"name":"Prometheus"},{"name":"Datadog"}]` | - |
| language.primary | Python | - |
| license.spdx | Apache-2.0 | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | - | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://emissary-ingress.dev/","retrievedAt":"2026-08-14T08:33:38.485Z"}` | `{"type":"hybrid","plans":[{"free":true,"name":"Open Source","summary":"Free, perpetual license","features":["Request routing by path, header, method, query parameter, host","Kubernetes Gateway API support","Traffic splitting and transformation","Multi-protocol support: REST, gRPC, GraphQL, WebSocket","Active community with regular releases"],"contactSales":false},{"free":false,"name":"Solo Enterprise","summary":"Contact sales for pricing","features":["24x7 Support SLA with guaranteed response times","N-3 Long Term Support with security patches and bug fixes","FIPS Compliant Images","Private Slack Channel with white-glove support"],"contactSales":true}],"summary":"Free open source forever. Enterprise support available.","freeTier":true,"sourceUrl":"https://www.solo.io/pricing","retrievedAt":"2026-08-13T17:04:52.281Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | low |
| pricing.transparent | yes | no |
| release.cadence_days | 18 | - |
| release.history | `[{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v4.1.0","date":"2026-05-19T21:35:22Z","type":"stable","version":"v4.1.0"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v4.1.0-rc.0","date":"2026-05-01T19:56:39Z","type":"prerelease","version":"v4.1.0-rc.0"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v4.0.1","date":"2026-03-26T22:54:46Z","type":"stable","version":"v4.0.1"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v4.0.1-rc.0","date":"2026-04-30T20:43:30Z","type":"prerelease","version":"v4.0.1-rc.0"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v4.0.0-rc.2","date":"2026-03-06T16:28:04Z","type":"prerelease","version":"v4.0.0-rc.2"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v4.0.0-rc.1","date":"2025-12-02T19:04:29Z","type":"prerelease","version":"v4.0.0-rc.1"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v3.10.0","date":"2025-07-29T17:20:40Z","type":"stable","version":"v3.10.0"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v3.9.1","date":"2023-11-20T16:00:55Z","type":"stable","version":"v3.9.1"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/chart/v8.9.1","date":"2023-11-20T15:59:12Z","type":"stable","version":"chart/v8.9.1"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v3.9.0","date":"2023-11-13T12:42:42Z","type":"stable","version":"v3.9.0"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/chart/v8.9.0","date":"2023-11-13T12:40:29Z","type":"stable","version":"chart/v8.9.0"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v3.8.2","date":"2023-10-11T14:11:25Z","type":"stable","version":"v3.8.2"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/chart/v8.8.2","date":"2023-10-11T14:09:30Z","type":"stable","version":"chart/v8.8.2"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v3.8.1","date":"2023-09-18T14:54:43Z","type":"stable","version":"v3.8.1"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/chart/v8.8.1","date":"2023-09-18T14:53:18Z","type":"stable","version":"chart/v8.8.1"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v3.8.0","date":"2023-08-29T12:30:13Z","type":"stable","version":"v3.8.0"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/chart/v8.8.0","date":"2023-08-29T12:28:24Z","type":"stable","version":"chart/v8.8.0"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v3.7.2","date":"2023-07-25T17:22:42Z","type":"stable","version":"v3.7.2"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/chart/v8.7.2","date":"2023-07-25T17:20:17Z","type":"stable","version":"chart/v8.7.2"},{"url":"https://github.com/emissary-ingress/emissary/releases/tag/v3.7.1","date":"2023-07-13T17:36:17Z","type":"stable","version":"v3.7.1"}]` | - |
| security.disclosure_policy | - | yes |
| security.scorecard | 5.9 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Femissary-ingress%2Femissary%2Fv3&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (API Gateways)

| Capability | Emissary | Gloo Gateway |
|---|:--:|:--:|
| **Deployment** |  |  |
| Hosting | Self-hosted only | Self-hosted only |
| Kubernetes-native | ✓ | ✓ |
| **Traffic** |  |  |
| Rate limiting | ✓ | - |
| Request/response transformation | - | ✓ |
| **Security** |  |  |
| OAuth2 / OIDC / JWT | - | - |
| Mutual TLS | ✓ | - |
| **Protocols** |  |  |
| GraphQL gateway | - | ✓ |
| gRPC support | ✓ | ✓ |
| **Delivery** |  |  |
| Developer portal | - | - |
| Monetization | - | - |
| **Ecosystem** |  |  |
| Plugin ecosystem | - | - |
| **Insight** |  |  |
| Observability | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T16:30:50.152Z. "-" = undocumented, not absent.*