--- title: "Companies starting with O | Agent MCP Directory" description: "48 companies starting with O: MCP server, CLI and OpenAPI status, checked 4 November 2026. Each row links to a full entry." canonical: https://agentmcpdirectory.com/directory/letter/o site: "Agent MCP Directory" last_updated: 2026-11-05 section: "Directory lists" --- # Companies starting with O | Agent MCP Directory > 48 companies starting with O: MCP server, CLI and OpenAPI status, checked 4 November 2026. Each row links to a full entry. Source: https://agentmcpdirectory.com/directory/letter/o Site: Agent MCP Directory Last reviewed: 2026-11-05 # Companies starting with O 48 companies in the directory start with the letter O: 8 listed tools to a client with no credentials, 19 answered with a sign-in challenge (not counted), and 1 has a CLI on record. Rows run from Oakallow to Oximy. ## Rows | Company | MCP server | CLI | Ora score | OpenAPI | WebMCP | Last verified | | --- | --- | --- | --- | --- | --- | --- | | Oakallow oakallow.io | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Obolusfinanz obolusfinanz.de | Verified no auth | – | | – | not read | 2026-11-04 | | Octagon octagonai.co | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Octoml octoml.ai | None found | – | 38 D | – | no | 2026-11-04 | | OctoPerf octoperf.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 53 C | – | not read | 2026-11-04 | | Ocular useocular.com | None found | – | 59 C | – | no | 2026-11-04 | | Odigos odigos.io | None found | – | 69 C | – | no | 2026-11-04 | | Offline Protocol offlineprotocol.com | Verified no auth | – | | – | not read | 2026-11-04 | | Oids tryoids.com | Credential wall API key | – | | – | not read | 2026-11-04 | | Okfindex okfindex.com | Verified no auth | – | | yes | not read | 2026-11-04 | | Okibi okibi.ai | Verified no auth | – | 35 D | – | no | 2026-11-04 | | Okteto okteto.com | None found | – | 58 C | – | no | 2026-11-04 | | Ollama ollama.com | None found | – | 65 C | – | no | 2026-11-04 | | Omnara omnara.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 84 B | – | no | 2026-11-04 | | Omnidim omnidim.io | Sign-in required OAuth DCR; tools not seen, not counted | – | 79 B | yes | not read | 2026-11-04 | | Omnistrate omnistrate.com | None found | – | 56 C | – | no | 2026-11-04 | | OneContext onecontext.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Onenote onenote.com | None found | – | 43 D | – | no | 2026-11-04 | | ONES ones.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 59 C | – | not read | 2026-11-04 | | OneSchema oneschema.co | Credential wall API key | – | 56 C | – | no | 2026-11-04 | | Onlook onlook.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 | – | 67 C | – | no | 2026-11-04 | | OpenAccountants openaccountants.com | Verified no auth | – | 64 C | – | not read | 2026-11-04 | | OpenAI openai.com | None found | @openai/codex | 58 C | yes | no | 2026-11-04 | | Openfoundry openfoundry.ai | None found | – | 37 D | – | no | 2026-11-04 | | Openlayer openlayer.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 82 B | – | no | 2026-11-04 | | OpenMesh openmesh.dev | No answer | – | | – | not read | 2026-11-04 | | OpenReplay openreplay.com | None found | – | 66 C | – | no | 2026-11-04 | | Opentext opentext.com | None found | – | 30 D | – | no | 2026-11-04 | | OpenWork openworklabs.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 81 B | – | no | 2026-11-04 | | OpenZeppelin openzeppelin.com | Verified no auth | – | 68 C | – | not read | 2026-11-04 | | Opsgenie opsgenie.com | None found | – | 60 C | – | no | 2026-11-04 | | Opslane opslane.com | None found | – | 47 D | – | no | 2026-11-04 | | OpsLevel opslevel.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 64 C | – | not read | 2026-11-04 | | Opsramp opsramp.com | None found | – | 43 D | – | not read | 2026-11-04 | | Optionsahoy optionsahoy.com | Verified no auth | – | | yes | not read | 2026-11-04 | | OpusClip opus.pro | Sign-in required OAuth DCR; tools not seen, not counted | – | 69 C | – | not read | 2026-11-04 | | Ora ora.ai | Verified no auth | – | 95 A+ | yes | yes | 2026-11-04 | | Orangescrum orangescrum.com | Sign-in required OAuth DCR; tools not seen, not counted | – | 81 B | yes | not read | 2026-11-04 | | OrgGen AI orggen.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | | – | not read | 2026-11-04 | | Orthogonal orthogonal.com | None found | – | 66 C | – | no | 2026-11-04 | | Osmosis osmosis.ai | None found | – | 69 C | – | no | 2026-11-04 | | Otter.ai otter.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | 57 C | – | no | 2026-11-04 | | Outlit outlit.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | 85 B | yes | no | 2026-11-04 | | Outset outset.ai | Sign-in required OAuth DCR; tools not seen, not counted | – | 51 C | – | no | 2026-11-04 | | OutSystems outsystems.com | None found | – | 63 C | – | no | 2026-11-04 | | OVHcloud ovhcloud.com | None found | – | 58 C | – | no | 2026-11-04 | | OwlCAD owlcad.com | Sign-in required OAuth DCR; tools not seen, not counted | – | | yes | not read | 2026-11-04 | | Oximy oximy.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 | – | 44 D | – | 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/o/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