# Greymatter vs Open Service Mesh

**Leader by vioscaleAI score:** Greymatter

| Attribute | Greymatter | Open Service Mesh |
|---|---|---|
| **vioscaleAI score** | 52.2 (47% (low)) | 41.3 (53% (medium)) |
| activity.commits_last_30d | - | 0 |
| adoption.dependent_repos | - | 15 |
| adoption.github_stars | - | 2,553 |
| content.faq | `[{"answer":"A zero trust networking platform that automatically encrypts traffic between services, enforces security policies, and manages workload identity across hybrid cloud deployments without requiring code changes. It is indexed under Service Mesh.","source":"https://greymatter.io/","question":"What is Greymatter?","confidence":0.6},{"answer":"Greymatter offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://greymatter.io/","question":"Is Greymatter free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Greymatter. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://greymatter.io/","question":"What platforms does Greymatter support?","confidence":0.6},{"answer":"Yes. Greymatter can be deployed cloud / SaaS, hybrid, on-premise, air-gapped and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://greymatter.io/","question":"Can Greymatter be self-hosted?","confidence":0.6},{"answer":"We have confirmed 9 integrations for Greymatter, including Grafana, Kibana, Prometheus, Splunk, Elasticsearch, Keycloak, PingFederate and Okta, plus 1 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://greymatter.io/","question":"What does Greymatter integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Greymatter. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Greymatter not holding them. Always confirm compliance directly before you rely on it.","source":"https://greymatter.io/blog/greymatter-io-and-nist-800-207-zero-trust-compliance/","question":"What security certifications does Greymatter have?","confidence":0.7},{"answer":"Greymatter is available worldwide. Its primary market is the United States. The vendor is headquartered in the United States.","source":"https://greymatter.io/","question":"Where is Greymatter available?","confidence":0.75}]` | `[{"answer":"Manages traffic, enforces access policies, and provides operational visibility for microservices running in Kubernetes clusters. Emphasizes simplicity in installation and maintenance through standardized configuration interfaces. It is indexed under Service Mesh.","source":"https://openservicemesh.io/","question":"What is Open Service Mesh?","confidence":0.6},{"answer":"Open Service Mesh is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://openservicemesh.io/","question":"Is Open Service Mesh free to use?","confidence":0.6},{"answer":"Open Service Mesh supports Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://openservicemesh.io/","question":"What platforms does Open Service Mesh support?","confidence":0.6},{"answer":"Yes. Open Service Mesh can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://openservicemesh.io/","question":"Can Open Service Mesh be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for Open Service Mesh, including Envoy, Linkerd, Istio, Consul, Kuma, Helm, SMI specification and external certificate management systems. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://openservicemesh.io/","question":"What does Open Service Mesh integrate with?","confidence":0.6},{"answer":"Yes. Open Service Mesh is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/openservicemesh/osm","question":"Is Open Service Mesh open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"hybrid":true,"air_gapped":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A platform that secures application and service traffic through automated encryption, granular policy enforcement, and built-in observability across hybrid clouds, Kubernetes, VMs, and edge environments. | A cloud-native service mesh that injects Envoy proxies to manage traffic, enforce security policies, and provide observability across microservice environments on Kubernetes. It uses SMI APIs for configuration and supports automatic mutual TLS. |
| features.capabilities | `{"fips_mode":true,"vm_support":true,"multicluster":true,"automatic_mtls":true,"traffic_splitting":true,"commercial_support":true,"built_in_observability":true}` | `{"proxy":"envoy","fips_mode":true,"data_plane":"sidecar","automatic_mtls":true,"traffic_splitting":true,"built_in_observability":true}` |
| integrations.count | 5 | 8 |
| integrations.list | `[{"name":"Grafana"},{"name":"Kibana"},{"name":"Prometheus"},{"name":"Splunk"},{"name":"Elasticsearch"},{"name":"Keycloak"},{"name":"PingFederate"},{"name":"Okta"},{"name":"Auth0"}]` | `[{"name":"Envoy"},{"name":"Linkerd"},{"name":"Istio"},{"name":"Consul"},{"name":"Kuma"},{"name":"Helm"},{"name":"SMI specification"},{"name":"external certificate management systems"}]` |
| language.primary | - | Go |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true}` |
| pricing | `{"type":"free","freeTier":true,"sourceUrl":"https://greymatter.io/","retrievedAt":"2026-08-13T18:19:59.123Z"}` | `{"type":"open_source","sourceUrl":"https://openservicemesh.io/","retrievedAt":"2026-08-16T21:31:56.824Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | free | open_source |
| pricing.price_level | free | free |
| pricing.transparent | no | - |
| release.cadence_days | - | 12 |
| release.history | - | `[{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.2.4","date":"2023-04-20T21:24:44Z","type":"stable","version":"v1.2.4"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.1.4","date":"2023-04-20T21:15:41Z","type":"stable","version":"v1.1.4"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.2.3","date":"2022-12-14T23:49:10Z","type":"stable","version":"v1.2.3"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.2.2","date":"2022-10-21T19:08:53Z","type":"stable","version":"v1.2.2"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.1.3","date":"2022-10-20T21:42:09Z","type":"stable","version":"v1.1.3"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.2.1","date":"2022-09-07T00:12:04Z","type":"stable","version":"v1.2.1"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.1.2","date":"2022-09-06T23:42:09Z","type":"stable","version":"v1.1.2"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.2.0","date":"2022-07-20T21:58:57Z","type":"stable","version":"v1.2.0"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.2.0-rc.1","date":"2022-07-12T19:43:08Z","type":"prerelease","version":"v1.2.0-rc.1"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.1.1","date":"2022-05-10T16:14:18Z","type":"stable","version":"v1.1.1"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.1.1-rc.1","date":"2022-05-04T21:17:30Z","type":"prerelease","version":"v1.1.1-rc.1"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.1.0","date":"2022-04-14T19:48:42Z","type":"stable","version":"v1.1.0"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.1.0-rc.1","date":"2022-04-04T21:57:23Z","type":"prerelease","version":"v1.1.0-rc.1"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.0.0","date":"2022-02-01T19:20:43Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.0.0-rc.4","date":"2022-01-19T22:38:08Z","type":"prerelease","version":"v1.0.0-rc.4"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.0.0-rc.3","date":"2022-01-10T19:20:43Z","type":"prerelease","version":"v1.0.0-rc.3"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.0.0-rc.2","date":"2021-11-15T17:26:39Z","type":"prerelease","version":"v1.0.0-rc.2"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v0.11.1","date":"2021-10-20T20:37:49Z","type":"stable","version":"v0.11.1"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v0.11.1-rc.1","date":"2021-10-15T23:22:02Z","type":"prerelease","version":"v0.11.1-rc.1"},{"url":"https://github.com/openservicemesh/osm/releases/tag/v1.0.0-rc.1","date":"2021-10-13T18:17:50Z","type":"prerelease","version":"v1.0.0-rc.1"}]` |
| reliability.status_page | yes | - |
| security.certifications | `[{"name":"FIPS 140-3","status":"active","auditor":"CMVP"}]` | - |
| security.fedramp | yes | - |
| security.gdpr | yes | - |
| security.scorecard | - | 4.8 |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fopenservicemesh%2Fosm&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Service Mesh)

| Capability | Greymatter | Open Service Mesh |
|---|:--:|:--:|
| **Architecture** |  |  |
| Data plane | - | Sidecar |
| Proxy | - | Envoy |
| **Security** |  |  |
| Automatic mutual TLS | ✓ | ✓ |
| SPIFFE / SPIRE identity | - | - |
| **Traffic** |  |  |
| Traffic splitting / canary | ✓ | ✓ |
| Fault injection / resilience | - | - |
| **Scale** |  |  |
| Multi-cluster federation | ✓ | - |
| **Portability** |  |  |
| VM support (beyond Kubernetes) | ✓ | - |
| **Observability** |  |  |
| Built-in observability | ✓ | ✓ |
| **Standards** |  |  |
| Gateway API / GAMMA support | - | - |
| **Extensibility** |  |  |
| WASM extensibility | - | - |
| **Compliance** |  |  |
| FIPS mode | ✓ | ✓ |
| **Ecosystem** |  |  |
| CNCF maturity | - | - |
| **Ops** |  |  |
| Commercial support / enterprise edition | ✓ | - |

*Source: vioscaleAI. Generated 2026-10-16T00:21:21.620Z. "-" = undocumented, not absent.*