# Scalar vs urllib3

| Attribute | Scalar | urllib3 |
|---|---|---|
| **vioscaleAI score** | 63.2 (70% (medium)) | 59.5 (60% (medium)) |
| activity.commits_last_30d | 100 | 26 |
| adoption.dependent_repos | 1 | 422,295 |
| adoption.github_stars | 16,253 | 4,071 |
| adoption.package_downloads_weekly | 1,422,867 | - |
| content.faq | `[{"answer":"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. It is indexed under API Development Tools.","source":"https://scalar.com/products/agent/pricing","question":"What is Scalar?","confidence":0.6},{"answer":"Scalar is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. A commercial or hosted edition starts at $72 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://scalar.com","question":"Is Scalar free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Scalar. 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://scalar.com/products/agent/pricing","question":"What platforms does Scalar support?","confidence":0.6},{"answer":"Yes. Scalar can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://scalar.com/products/agent/pricing","question":"Can Scalar be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 and GDPR for Scalar. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Scalar not holding them. Always confirm compliance directly before you rely on it.","source":"https://scalar.com/security","question":"What security certifications does Scalar have?","confidence":0.7},{"answer":"Yes. Scalar is published under the MIT 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/scalar/scalar","question":"Is Scalar open source?","confidence":0.99},{"answer":"Scalar is available worldwide. Its primary market is the United States.","source":"https://scalar.com","question":"Where is Scalar available?","confidence":0.5}]` | `[{"answer":"urllib3 is a Python HTTP client library that enables applications to make HTTP requests with built-in support for connection pooling, SSL/TLS verification, proxy support, automatic retries, and response compression. It handles the complexities of HTTP communication while simplifying integration into Python projects.","source":"https://urllib3.readthedocs.io","question":"What is urllib3?","confidence":0.95},{"answer":"urllib3 provides thread-safe connection pooling to reuse HTTP connections, client-side TLS/SSL certificate verification for secure connections, built-in proxy support, automatic retry logic for failed requests, and transparent compression handling. These features reduce overhead and improve reliability for HTTP communication.","source":"https://urllib3.readthedocs.io","question":"What are the main technical features of urllib3?","confidence":0.95},{"answer":"Yes, urllib3 is free and open source software with no licensing costs. Optional professional support is available through a Tidelift Subscription for organizations that need dedicated assistance.","source":"https://urllib3.readthedocs.io","question":"Is urllib3 free to use?","confidence":0.95},{"answer":"urllib3 is designed for Python developers and organizations building Python applications that require HTTP client functionality. It's particularly useful for teams needing reliable connection management, security verification, and automated retry handling in their HTTP interactions.","source":"https://urllib3.readthedocs.io","question":"Who should consider using urllib3?","confidence":0.85},{"answer":"urllib3 is a self-hosted library that you integrate directly into your Python application; there are no external services to manage. It runs within your application's Python environment as a dependency.","source":"https://urllib3.readthedocs.io","question":"How is urllib3 deployed?","confidence":0.9},{"answer":"Yes, urllib3 includes REST client capabilities, making it suitable for applications that need to consume HTTP APIs and build client applications that communicate with remote services.","source":"https://urllib3.readthedocs.io","question":"Can urllib3 be used to build REST API clients?","confidence":0.85},{"answer":"urllib3 provides comprehensive API documentation for developers. The documentation is accessible at the project website and covers library features, usage patterns, and integration guidance.","source":"https://urllib3.readthedocs.io","question":"Is documentation available for urllib3?","confidence":0.85}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A platform that creates API documentation, type-safe client libraries, and AI-ready tools from OpenAPI documents, ensuring all developer interfaces stay synchronized as APIs evolve. | urllib3 is an HTTP client library for Python that adds essential features not available in the standard library, particularly client-side TLS/SSL certificate verification and robust connection management. |
| features.capabilities | `{"api_docs":true,"mock_server":true,"rest_client":true,"grpc_support":true,"collaboration":true,"ci_integration":true,"openapi_import":true,"graphql_support":true,"automated_testing":true}` | `{"api_docs":true,"rest_client":true}` |
| integrations.count | 4 | 2 |
| integrations.list | `[{"name":"Agent"},{"name":"FastAPI","native":true,"category":"api_framework"},{"name":"ASP.NET Core","native":true,"category":"api_framework"},{"name":"Hono","native":true,"category":"api_framework"},{"name":"Elysia","native":true,"category":"api_framework"},{"name":"Hapi","native":true,"category":"api_framework"},{"name":"Docker","native":true,"category":"deployment"},{"name":"Docusaurus","native":true,"category":"documentation"},{"name":"GitHub","native":true,"category":"version_control","direction":"bidirectional"},{"name":"Vercel AI SDK","native":true,"category":"ai","direction":"inbound"},{"name":"OpenAI Agents SDK","native":true,"category":"ai","direction":"inbound"},{"name":"Anthropic Claude Agent SDK","native":true,"category":"ai","direction":"inbound"}]` | `[{"name":"Requests"},{"name":"pip"}]` |
| language.primary | TypeScript | Python |
| license.spdx | MIT | MIT |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"mac":true,"web":true,"linux":true,"windows":true}` | - |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"Free forever","features":["Hosted OpenAPI docs","Built-in API client","Landing pages","1 editor seat"],"minSeats":1,"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"apis":"3","sdks":"1","sdk_endpoints":"25","agent_scalar_credits":"50"}},{"free":false,"name":"Pro","summary":"$150/month or $125/month billed yearly ($1,500/year)","features":["Hosted MCP servers","5 editor seats","Access groups included","Volume discounts available"],"minSeats":5,"commitment":"monthly","components":[{"kind":"fixed","amount":150,"period":"month","currency":"USD"},{"kind":"fixed","amount":1500,"period":"year","currency":"USD"}],"contactSales":false,"includedLimits":{"apis":"15","sdks":"1","sdk_endpoints":"100","agent_scalar_credits":"500"}},{"free":false,"name":"Business","summary":"$600/month or $500/month billed yearly ($6,000/year)","features":["SSO and subpath hosting","10 editor seats","Volume discounts available"],"minSeats":10,"commitment":"monthly","components":[{"kind":"fixed","amount":600,"period":"month","currency":"USD"},{"kind":"fixed","amount":6000,"period":"year","currency":"USD"}],"contactSales":false,"includedLimits":{"apis":"25","sdks":"1","sdk_endpoints":"250","agent_scalar_credits":"2000"}},{"free":false,"name":"Enterprise","summary":"Custom pricing with SLAs and dedicated support","features":["Unlimited APIs and custom SDK sizes","Priority support and SLAs","SDK and MCP migration services","Dedicated Slack/Teams channel"],"contactSales":true,"includedLimits":{"apis":"unlimited","sdk_endpoints":"custom"}}],"addOns":[{"name":"Additional SDK (Pro)","components":[{"kind":"fixed","amount":150,"period":"month","currency":"USD"}]},{"name":"Additional SDK (Business)","components":[{"kind":"fixed","amount":600,"period":"month","currency":"USD"}]}],"summary":"Free tier available. From $150/month for Pro or $600/month for Business, with yearly billing discounts (2 months free).","currency":"USD","freeTier":true,"sourceUrl":"https://scalar.com/pricing","retrievedAt":"2026-09-10T21:08:43.585Z","startingPrice":{"amount":150,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://urllib3.readthedocs.io","retrievedAt":"2026-08-14T11:08:00.574Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":150,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | 3 | 27 |
| release.history | `[{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-10-12-2c929a3","date":"2026-10-12T16:58:28Z","type":"stable","version":"release-2026-10-12-2c929a3"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-10-05-df37703","date":"2026-10-05T13:48:20Z","type":"stable","version":"release-2026-10-05-df37703"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-10-02-0962afc","date":"2026-10-02T04:46:10Z","type":"stable","version":"release-2026-10-02-0962afc"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-30-5d95c40","date":"2026-09-30T13:14:50Z","type":"stable","version":"release-2026-09-30-5d95c40"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-29-0e5c088","date":"2026-09-29T09:38:06Z","type":"stable","version":"release-2026-09-29-0e5c088"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-25-85e8e22","date":"2026-09-25T10:38:11Z","type":"stable","version":"release-2026-09-25-85e8e22"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-24-fcadd46","date":"2026-09-24T11:38:27Z","type":"stable","version":"release-2026-09-24-fcadd46"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-22-cba1845","date":"2026-09-22T11:44:13Z","type":"stable","version":"release-2026-09-22-cba1845"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-21-e2f3b5c","date":"2026-09-21T18:20:46Z","type":"stable","version":"release-2026-09-21-e2f3b5c"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-19-641d279","date":"2026-09-19T03:21:51Z","type":"stable","version":"release-2026-09-19-641d279"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-18-85612c4","date":"2026-09-18T20:31:18Z","type":"stable","version":"release-2026-09-18-85612c4"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-16-32f4c66","date":"2026-09-16T10:09:00Z","type":"stable","version":"release-2026-09-16-32f4c66"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-09-07-42fc8b1","date":"2026-09-07T10:43:04Z","type":"stable","version":"release-2026-09-07-42fc8b1"},{"url":"https://github.com/scalar/scalar/releases/tag/release-2026-08-28-df40ed7","date":"2026-08-28T11:32:14Z","type":"stable","version":"release-2026-08-28-df40ed7"},{"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/urllib3/urllib3/releases/tag/2.8.0","date":"2026-09-15T19:40:51Z","type":"stable","version":"2.8.0"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.7.0","date":"2026-05-07T16:32:49Z","type":"stable","version":"2.7.0"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.6.3","date":"2026-01-07T16:30:23Z","type":"stable","version":"2.6.3"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.6.2","date":"2025-12-11T15:59:07Z","type":"stable","version":"2.6.2"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.6.1","date":"2025-12-08T15:27:19Z","type":"stable","version":"2.6.1"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.6.0","date":"2025-12-05T15:18:06Z","type":"stable","version":"2.6.0"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.5.0","date":"2025-06-18T14:19:56Z","type":"stable","version":"2.5.0"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.4.0","date":"2025-04-10T15:22:59Z","type":"stable","version":"2.4.0"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.3.0","date":"2024-12-22T07:44:15Z","type":"stable","version":"2.3.0"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.2.3","date":"2024-09-12T10:50:28Z","type":"stable","version":"2.2.3"},{"url":"https://github.com/urllib3/urllib3/releases/tag/1.26.20","date":"2024-08-29T15:41:42Z","type":"stable","version":"1.26.20"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.2.2","date":"2024-06-17T08:19:23Z","type":"stable","version":"2.2.2"},{"url":"https://github.com/urllib3/urllib3/releases/tag/1.26.19","date":"2024-06-17T17:19:36Z","type":"stable","version":"1.26.19"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.2.1","date":"2024-02-18T03:55:18Z","type":"stable","version":"2.2.1"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.2.0","date":"2024-01-30T15:17:27Z","type":"stable","version":"2.2.0"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.1.0","date":"2023-11-13T12:29:03Z","type":"stable","version":"2.1.0"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.0.7","date":"2023-10-17T17:46:02Z","type":"stable","version":"2.0.7"},{"url":"https://github.com/urllib3/urllib3/releases/tag/1.26.18","date":"2023-10-17T17:46:31Z","type":"stable","version":"1.26.18"},{"url":"https://github.com/urllib3/urllib3/releases/tag/2.0.6","date":"2023-10-02T17:21:44Z","type":"stable","version":"2.0.6"},{"url":"https://github.com/urllib3/urllib3/releases/tag/1.26.17","date":"2023-10-02T17:21:47Z","type":"stable","version":"1.26.17"}]` |
| reliability.status_page | yes | - |
| security.certifications | `[{"name":"SOC 2 Type 1","level":"Type 1","status":"active"}]` | - |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | - |
| security.scorecard | - | 8.6 |
| security.soc2 | yes | - |
| security.trust_center | https://scalar.com/security | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40scalar%2Fuse-modal&per_page=100","last_12m":0,"max_severity":null}` | `{"count":22,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=urllib3&per_page=100","last_12m":8,"max_severity":"CRITICAL"}` |

## Capabilities (API Development Tools)

| Capability | Scalar | urllib3 |
|---|:--:|:--:|
| **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: vioscaleAI. Generated 2026-10-16T20:14:58.218Z. "-" = undocumented, not absent.*