--- title: "Companies starting with C | Agent MCP Directory" description: "119 companies starting with C: MCP server, CLI and OpenAPI status, checked 4 November 2026. Each row links to a full entry." canonical: https://agentmcpdirectory.com/directory/letter/c site: "Agent MCP Directory" last_updated: 2026-11-05 section: "Directory lists" --- # Companies starting with C | Agent MCP Directory > 119 companies starting with C: MCP server, CLI and OpenAPI status, checked 4 November 2026. Each row links to a full entry. Source: https://agentmcpdirectory.com/directory/letter/c Site: Agent MCP Directory Last reviewed: 2026-11-05 # Companies starting with C 119 companies in the directory start with the letter C: 19 listed tools to a client with no credentials, 48 answered with a sign-in challenge (not counted), and 5 have a CLI on record. This page lists rows 1 to 100, from Calendly to Cortex. ## Rows 1 to 100 | Company | MCP server | CLI | Ora score | OpenAPI | WebMCP | Last verified | | --- | --- | --- | --- | --- | --- | --- | | Calendly calendly.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 78 B | – | no | 2026-11-04 | | call4me call4.me | Sign-in required OAuth DCR; tools not seen, not counted | – | | yes | not read | 2026-11-04 | | Canva canva.com | Sign-in required OAuth DCR; tools not seen, not counted | @canva/cli | 42 D | – | no | 2026-11-04 | | Capacities capacities.io | Sign-in required OAuth DCR; tools not seen, not counted | – | 78 B | – | no | 2026-11-04 | | Carbon getcarbon.app | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Carrd carrd.co | None found | – | 42 D | – | no | 2026-11-04 | | Carrick carrick.tools | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Casco casco.com | Verified no auth | – | 41 D | – | no | 2026-11-04 | | Castari castari.com | None found | – | 61 C | – | no | 2026-11-04 | | Catalystproject catalystproject.ai | Verified no auth | – | | – | not read | 2026-11-04 | | Causely causely.app | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Cavyro cavyro.com | Credential wall API key | – | 73 B | yes | not read | 2026-11-04 | | Cedana cedana.ai | None found | – | 34 D | – | no | 2026-11-04 | | Cekura cekura.ai | None found | – | 82 B | – | no | 2026-11-04 | | Celigo celigo.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 79 B | – | not read | 2026-11-04 | | Cerebrium cerebrium.ai | Verified no auth | – | 86 A | – | no | 2026-11-04 | | CertScore.ai certscore.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Chainstack chainstack.com | Verified no auth | – | 71 B | – | not read | 2026-11-04 | | Chamber usechamber.io | None found | – | 68 C | – | no | 2026-11-04 | | Channel3 trychannel3.com | Verified no auth | – | 92 A | – | no | 2026-11-04 | | Charming charm.ing | Sign-in required OAuth DCR; tools not seen, not counted | – | 82 B | yes | not read | 2026-11-04 | | Chatfuel chatfuel.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 34 D | – | no | 2026-11-04 | | Chatway chatway.app | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Checkmarx checkmarx.com | None found | – | 61 C | – | no | 2026-11-04 | | Checkout.com checkout.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 73 B | – | no | 2026-11-04 | | Chili Piper chilipiper.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 48 C | – | no | 2026-11-04 | | Chonkie chonkie.ai | No answer | – | 43 D | – | no | 2026-11-04 | | Chronosphere chronosphere.io | None found | – | 67 C | – | no | 2026-11-04 | | Ciphyr ciphyr.ai | Verified no auth | – | | – | not read | 2026-11-04 | | Circleback circleback.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | 76 B | – | no | 2026-11-04 | | CircleCI circleci.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 81 B | yes | yes | 2026-11-04 | | Cisco cisco.com | None found | – | 33 D | – | no | 2026-11-04 | | Clarm clarm.com | None found | – | 69 C | yes | no | 2026-11-04 | | Claude claude.com | Verified no auth | – | 62 C | – | no | 2026-11-04 | | Clean Notes cleannotes.app | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Cleanlab cleanlab.ai | None found | – | 34 D | – | no | 2026-11-04 | | Clera getclera.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 39 D | – | not read | 2026-11-04 | | ClickUp clickup.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 64 C | – | no | 2026-11-04 | | Clicon clicon.app | No answer | – | | – | not read | 2026-11-04 | | Clidey clidey.com | None found | – | 38 D | – | no | 2026-11-04 | | Cline cline.bot | None found | – | 77 B | – | no | 2026-11-04 | | Clino clino.ch | Verified no auth | – | | – | not read | 2026-11-04 | | Clockify™ clockify.me | None found | – | 64 C | – | no | 2026-11-04 | | Close close.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 79 B | – | no | 2026-11-04 | | CloudBees cloudbees.com | None found | – | 68 C | – | no | 2026-11-04 | | Cloudchipr cloudchipr.com | Sign-in required OAuth DCR; tools not seen, not counted; endpoint found by subdomain guess; it answered with a sign-in challenge and was not verified | – | 55 C | – | no | 2026-11-04 | | Cloudflare cloudflare.com | Verified no auth | wrangler | 82 B | yes | yes | 2026-11-04 | | Cloudglue cloudglue.dev | Sign-in required OAuth; tools not seen, not counted; endpoint found by subdomain guess; it answered with a sign-in challenge and was not verified | – | 77 B | – | no | 2026-11-04 | | Cloudinary cloudinary.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 83 B | – | no | 2026-11-04 | | Cloudthread cloudthread.io | None found | – | 41 D | – | not read | 2026-11-04 | | Clubhouse clubhouse.io | None found | – | 62 C | yes | no | 2026-11-04 | | Clueso clueso.io | Verified no auth | – | 78 B | – | no | 2026-11-04 | | Clutch.co clutch.co | Verified no auth | – | 21 F | – | no | 2026-11-04 | | cmux cmux.com | None found | – | 43 D | – | no | 2026-11-04 | | Coasts coasts.dev | None found | – | 40 D | – | no | 2026-11-04 | | CockroachDB cockroachlabs.com | None found | – | 69 C | – | no | 2026-11-04 | | Code Climate codeclimate.com | None found | – | 50 C | – | no | 2026-11-04 | | Codeanywhere codeanywhere.com | None found | – | 40 D | – | no | 2026-11-04 | | Codeberg.org codeberg.org | None found | – | 54 C | – | no | 2026-11-04 | | Codecov codecov.io | None found | – | 68 C | – | not read | 2026-11-04 | | Codefresh codefresh.io | None found | – | 50 C | – | no | 2026-11-04 | | Codeium codeium.com | None found | – | 49 C | – | no | 2026-11-04 | | Codemagic codemagic.io | None found | – | 58 C | – | no | 2026-11-04 | | Coder coder.com | None found | – | 70 B | – | no | 2026-11-04 | | CodeSandbox codesandbox.io | None found | – | 44 D | – | no | 2026-11-04 | | Codev co.dev | None found | – | 50 C | – | no | 2026-11-04 | | Codex Reset codex-reset.com | Verified no auth | – | | yes | not read | 2026-11-04 | | Cogram cogram.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 71 B | – | no | 2026-11-04 | | CoinMarketCap coinmarketcap.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 60 C | – | no | 2026-11-04 | | COLA Cloud colacloud.us | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | CometChat cometchat.com | Verified no auth | – | 56 C | – | not read | 2026-11-04 | | Common Paper commonpaper.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 51 C | – | no | 2026-11-04 | | Commsharbor commsharbor.com | Verified no auth | – | | yes | not read | 2026-11-04 | | Composio composio.dev | None found | composio | 83 B | – | no | 2026-11-04 | | Compresr compresr.ai | None found | – | 49 C | yes | no | 2026-11-04 | | Compyle compyle.ai | None found | – | 55 C | – | no | 2026-11-04 | | Concourse CI concourse-ci.org | None found | – | 41 D | – | no | 2026-11-04 | | Conductor conductor.build | None found | – | 72 B | – | no | 2026-11-04 | | Confident AI confident-ai.com | Sign-in required OAuth DCR; tools not seen, not counted; endpoint found by subdomain guess; it answered with a sign-in challenge and was not verified | – | 90 A | – | no | 2026-11-04 | | ConfigCat configcat.com | Sign-in required OAuth; tools not seen, not counted; endpoint found by subdomain guess; it answered with a sign-in challenge and was not verified | – | 51 C | – | no | 2026-11-04 | | Confluent confluent.io | None found | – | 78 B | – | no | 2026-11-04 | | ConnectMachine connectmachine.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Connie connie.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Contentful contentful.com | Sign-in required OAuth DCR; tools not seen, not counted; endpoint found by subdomain guess; it answered with a sign-in challenge and was not verified | contentful-cli | 74 B | – | no | 2026-11-04 | | Contentstack contentstack.com | Credential wall API key | – | 67 C | – | no | 2026-11-04 | | Context Awesome context-awesome.com | Verified no auth | – | | – | not read | 2026-11-04 | | Context7 context7.com | Verified no auth | – | 81 B | yes | no | 2026-11-04 | | Continue continue.dev | No answer | – | 54 C | – | no | 2026-11-04 | | Conveo conveo.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | 77 B | – | no | 2026-11-04 | | Convex convex.dev | Verified no auth; endpoint found by subdomain guess, verified by connecting | convex | 71 B | – | not read | 2026-11-04 | | Convoy getconvoy.io | None found | – | 59 C | – | no | 2026-11-04 | | CookieYes cookieyes.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 79 B | – | no | 2026-11-04 | | Coralogix coralogix.com | None found | – | 79 B | yes | no | 2026-11-04 | | CORE getcore.me | No answer | – | 55 C | – | no | 2026-11-04 | | CoreMedia coremedia.com | None found | – | 57 C | – | no | 2026-11-04 | | CoreNexis API corenexis.com | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | CoreWeave coreweave.com | None found | – | 68 C | – | no | 2026-11-04 | | COROS coros.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 45 D | – | not read | 2026-11-04 | | Corsair corsair.dev | Sign-in required OAuth DCR; tools not seen, not counted | – | 67 C | – | no | 2026-11-04 | | Cortex cortex.io | Sign-in required OAuth DCR; tools not seen, not counted | – | 57 C | – | no | 2026-11-04 | Ora score is Ora's cached score and grade for the company's domain, read on 5 November 2026 from GET /api/score/{domain}, or from Ora's GET /api/leaderboard of the same day where that was read first (a vendor-published figure). A blank cell means Ora returned no cached score for the domain, or the domain was not read. MCP status - [Verified](https://agentmcpdirectory.com/directory/status/verified/) 263 - [Sign-in required, tools not seen, not counted](https://agentmcpdirectory.com/directory/status/sign-in/) 533 - [Credential wall](https://agentmcpdirectory.com/directory/status/credential-wall/) 19 - [No answer](https://agentmcpdirectory.com/directory/status/no-answer/) 47 - [No tools listed](https://agentmcpdirectory.com/directory/status/no-tools/) 2 - [None found](https://agentmcpdirectory.com/directory/status/none-found/) 472 Auth type - [No authentication](https://agentmcpdirectory.com/directory/auth/none/) 263 - [API key](https://agentmcpdirectory.com/directory/auth/api-key/) 19 - [OAuth with client registration](https://agentmcpdirectory.com/directory/auth/oauth-dcr/) 517 - [OAuth without client registration](https://agentmcpdirectory.com/directory/auth/oauth/) 16 Edition 4 November 2026 Method [How rows are verified](https://agentmcpdirectory.com/method/) Data [CSV and JSON](https://agentmcpdirectory.com/data/) Markdown [This page as markdown](https://agentmcpdirectory.com/directory/letter/c/index.md) ## Sources - [Official MCP Registry API](https://registry.modelcontextprotocol.io/v0/servers), read 4 November 2026 - [Ora public leaderboard](https://ora.ai/leaderboard?utm_source=agentmcpdirectory.com&utm_medium=referral&utm_campaign=list), read 4 November 2026 - [Ora leaderboard, GET /api/leaderboard](https://ora.ai/api/leaderboard?utm_source=agentmcpdirectory.com&utm_medium=referral&utm_campaign=list), read 5 November 2026 - [Ora API reference, including GET /api/score/{domain}](https://ora.ai/llms-full.txt?utm_source=agentmcpdirectory.com&utm_medium=referral&utm_campaign=list), read 5 November 2026 Last reviewed 5 November 2026