# Scalar vs Thunder Client

| Attribute | Scalar | Thunder Client |
|---|---|---|
| **Vioscale score** | 61.7 (76% (high)) | 68.6 (30% (low)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 1 | - |
| adoption.github_stars | 15,999 | - |
| adoption.package_downloads_weekly | 824,329 | - |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | An open-source platform for building API documentation sites that includes automatically generated SDKs, a browser-based API client, and API registry capabilities. Supports OpenAPI and AsyncAPI specifications. | A lightweight API testing client for VS Code and JetBrains IDEs that stores all data locally on developers' machines and enables team collaboration through Git-based synchronization without requiring context-switching to external tools. |
| features.capabilities | `{"api_docs":true,"rest_client":true,"openapi_import":true}` | `{"rest_client":true,"grpc_support":true,"collaboration":true,"ci_integration":true}` |
| integrations.count | 1 | 2 |
| integrations.list | `[{"name":"Agent"}]` | `[{"name":"Azure"},{"name":"AWS"}]` |
| language.primary | TypeScript | - |
| license.spdx | MIT | - |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"IE","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"Free","features":["Hosted OpenAPI docs","Built-in API client","Themes","Unlimited viewer seats","1 editor seat"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Start with beautiful API docs.","contactSales":false,"includedLimits":{"editor_seats":"1","agent_credits":"50","tokens_per_credit":"50000","docs_chat_per_credit":"2","mcp_tool_calls_per_credit":"200"}},{"free":false,"name":"Pro","summary":"$72/month","features":["Custom domains and subdomains","Git Sync, Markdown, and MDX support","API References from OpenAPI/AsyncAPI","Custom HTML/CSS/JS","Email domain access control","Guides and versioning","Landing pages","Full developer portal","Hosted MCP servers","Production deployment","Automated GitHub workflows","Custom code and code samples","Full OpenAPI authentication support","File streaming","Full language publishing registry"],"components":[{"kind":"fixed","amount":72,"period":"month","currency":"USD"}],"description":"Ship docs, SDKs, and MCP servers.","contactSales":false,"includedLimits":{"agent_credits":"500","tokens_per_credit":"50000","docs_chat_per_credit":"2","mcp_tool_calls_per_credit":"200"}},{"free":false,"name":"Enterprise","summary":"Custom pricing","features":["Full developer portals","SSO/SAML","Role-based access control (RBAC)","Priority support and SLAs","SDK and MCP migration services","Dedicated Slack/Teams channel","Custom Agent Scalar credits"],"description":"Scale every API interface.","contactSales":true}],"addOns":[{"name":"SDK Language","components":[{"kind":"one_time","amount":100,"currency":"USD"}]}],"summary":"From $72/month. Free tier. SDK languages available: TypeScript, Python, C#, Java, PHP, Go, Ruby (+$100 each for Pro/Enterprise).","currency":"USD","freeTier":true,"sourceUrl":"https://scalar.com","retrievedAt":"2026-08-05T14:12:51.335Z","startingPrice":{"amount":72,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"subscription","plans":[{"free":true,"name":"Free","features":["VS Code extension","Local storage"],"commitment":"monthly","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Starter","summary":"$3/user/month billed annually","features":["VS Code & JetBrains extensions","Team features","CLI & CI/CD","WebSocket, SSE, gRPC","250 Collection Runs per user"],"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":3,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"collection_runs":"250/month"}},{"free":false,"name":"Business","summary":"$7/user/month billed annually","features":["VS Code & JetBrains extensions","Team features","CLI & CI/CD","WebSocket, SSE, gRPC","500 Collection Runs per user"],"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":7,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"collection_runs":"500/month"}},{"free":false,"name":"Enterprise","summary":"$16/user/month billed annually","features":["VS Code & JetBrains extensions","Team features","CLI & CI/CD","WebSocket, SSE, gRPC","Unlimited Collection Runs","Offline Activation","Enterprise SSO","Secrets Manager Integration (Azure & AWS)","License Management API","Audit Logs","Performance Testing"],"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":16,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"collection_runs":"Unlimited"}}],"summary":"From free to $16/user/month. 14-day free trial available.","currency":"USD","freeTier":true,"sourceUrl":"https://www.thunderclient.com/pricing","retrievedAt":"2026-08-14T08:32:19.922Z","freeTrialDays":14,"startingPrice":{"amount":3,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | free | low |
| pricing.transparent | yes | yes |
| release.cadence_days | 3 | - |
| release.history | `[{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-08-20-1e5ab85","date":"2026-08-20T21:15:27Z","type":"stable","version":"release-2026-08-20-1e5ab85"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-08-13-f20d08b","date":"2026-08-13T07:30:43Z","type":"stable","version":"release-2026-08-13-f20d08b"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-08-13-ef440b4","date":"2026-08-13T23:22:26Z","type":"stable","version":"release-2026-08-13-ef440b4"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-08-07-74f1a3a","date":"2026-08-07T13:56:29Z","type":"stable","version":"release-2026-08-07-74f1a3a"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-31-dc1e98f","date":"2026-07-31T00:59:30Z","type":"stable","version":"release-2026-07-31-dc1e98f"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-20-be8106c","date":"2026-07-20T21:23:53Z","type":"stable","version":"release-2026-07-20-be8106c"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-16-88c793c","date":"2026-07-16T22:12:19Z","type":"stable","version":"release-2026-07-16-88c793c"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-16-29edc7e","date":"2026-07-16T18:10:30Z","type":"stable","version":"release-2026-07-16-29edc7e"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-15-d802665","date":"2026-07-15T04:03:46Z","type":"stable","version":"release-2026-07-15-d802665"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-15-74d8703","date":"2026-07-15T20:42:49Z","type":"stable","version":"release-2026-07-15-74d8703"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-08-8cbf82d","date":"2026-07-08T10:08:01Z","type":"stable","version":"release-2026-07-08-8cbf82d"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-03-309919d","date":"2026-07-03T16:43:22Z","type":"stable","version":"release-2026-07-03-309919d"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-02-ba6e2ca","date":"2026-07-02T10:06:47Z","type":"stable","version":"release-2026-07-02-ba6e2ca"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-07-02-8642c68","date":"2026-07-02T23:19:21Z","type":"stable","version":"release-2026-07-02-8642c68"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-06-30-6b1c104","date":"2026-06-30T09:54:22Z","type":"stable","version":"release-2026-06-30-6b1c104"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-06-26-aa3696f","date":"2026-06-26T09:35:54Z","type":"stable","version":"release-2026-06-26-aa3696f"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-06-22-e9db1fd","date":"2026-06-22T19:12:34Z","type":"stable","version":"release-2026-06-22-e9db1fd"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-06-17-23b90bb","date":"2026-06-17T11:48:00Z","type":"stable","version":"release-2026-06-17-23b90bb"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-06-11-fe0498e","date":"2026-06-11T12:52:57Z","type":"stable","version":"release-2026-06-11-fe0498e"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-06-09-5cdc88a","date":"2026-06-09T12:47:02Z","type":"stable","version":"release-2026-06-09-5cdc88a"}]` | - |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.gdpr | yes | yes |
| security.soc2 | yes | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40scalar%2Fthemes&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (API Development Tools)

| Capability | Scalar | Thunder Client |
|---|:--:|:--:|
| **Core** |  |  |
| REST client | ✓ | ✓ |
| GraphQL support | - | - |
| gRPC support | - | ✓ |
| **Design** |  |  |
| Mock servers | - | - |
| **Testing** |  |  |
| Automated / contract testing | - | - |
| **Collaboration** |  |  |
| Team collaboration & sharing | - | ✓ |
| **Docs** |  |  |
| Doc generation | ✓ | - |
| **Standards** |  |  |
| OpenAPI / spec import | ✓ | - |
| **Ops** |  |  |
| CI integration / CLI | - | ✓ |

*Source: Vioscale. Generated 2026-09-01T14:58:46.367Z. "-" = undocumented, not absent.*