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3,485 claude connectors and chatgpt apps
Productivity
Omnisend
By Omnisend, UAB
Get instant answers from your Omnisend data. Ask about campaign performance, automation drop-offs, and subscriber trends. Understand what's working and what to fix next, without touching a report.
Tools: 0 · Prompts: 3
Education & Research
Omphalis
By Voxiven, LLC
Omphalis is the place where what you read, hear, and note begins to cohere. You save an article, and Omphalis shows its structure. You listen to a podcast on your commute, and Omphalis helps you come back to what mattered. You watch a two-hour talk, and Omphalis shows you the shape of it in seconds. You record a voice note at midnight, and Omphalis places it beside the article, talk, or paper that belongs with it. The paper you read last spring meets the book you are reading now, and your voice note from a walk last month sits beside both. What changed in the field, what changed in your understanding, what still holds: all part of the same library, still in reach, still connected. Not a pile that grows heavier. A place that gets clearer. It is for people who need what they consume to stay usable later — in writing, teaching, decision-making, research, or reflection — where understanding can compound over time. Omphalis is a companion for long content: a map for structure, a margin for meaning, and a way back to the moments that matter.
Tools: 12
Travel
On the Beach Holidays
By On the Beach Limited
Search for holidays like you're texting your mate. "Somewhere hot in Feb." "All Inclusive with a waterpark, early flights and good reviews." "A city break with great history and delish food." Whatever vibe you're after, On the Beach serves up package holidays that match - flights and hotel included, every package ATOL and ABTA protected, with flexible payment plans to spread the cost. Found one you love? Tap through to On the Beach to see full details and book.
Tools: 0 · Prompts: 3
Productivity
OnceHub
By OnceHub
OnceHub helps authenticated users manage their own scheduling workflows in ChatGPT, including finding upcoming meetings, retrieving booking links, generating one-time links, reviewing working hours, updating date-specific availability, canceling or rescheduling meetings, and marking confirmed meetings as no-show.
Tools: 10
Productivity
OnceHub
By OnceHub
OnceHub helps authenticated users manage their own scheduling workflows in ChatGPT, including finding upcoming meetings, retrieving booking links, generating one-time links, reviewing working hours, updating date-specific availability, canceling or rescheduling meetings, and marking confirmed meetings as no-show.
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Developer Tools
OneGate
By NEO GLOBAL RESOURCES
Use the bundled Skill and local JSON CLI to open a DApp at its original URL, inject a OneGate-compatible NEP-21 provider before page scripts, reuse one persistent development account for real signatures, and inspect browser state, console output, screenshots, and dAPI traces. Browser Mock is the currently implemented debugging target.
Prompts: 3
Productivity
OnePageCRM
By OnePageCRM
Turn ChatGPT into your CRM assistant. It can summarize your Action Stream, do research, create new contacts, schedule follow-ups, rearrange overdue tasks, log notes after calls, update deals, and build simple dashboards. Let AI handle the admin while you build relationships, close deals, and focus on growing your business with OnePageCRM.
Tools: 5
Productivity
OneSignal
By OneSignal
The OneSignal MCP server gives AI agents direct access to OneSignal’s customer engagement platform. Agents can explore users, segments, messages, templates, and analytics; answer product and campaign questions; troubleshoot delivery and engagement issues; generate insights; and help create personalized omnichannel messaging across push, email, SMS, RCS, in-app messaging, and Live Activities.
Tools: 32
Productivity
Onplana
By Devsoft Solutions
Onplana connects ChatGPT to your project portfolio. Search across projects, tasks, sprints, risks, comments, and wiki with hybrid BM25 + vector search. Read project state, update tasks, log time, surface portfolio-level insights, and generate status reports, all gated by your org's plan and role permissions, with every operation audited. Built for teams migrating from Microsoft Project Online ahead of its September 2026 retirement.
Tools: 236
Productivity
Onplana
By Devsoft Solutions
Onplana connects ChatGPT to your project portfolio. Search across projects, tasks, sprints, risks, comments, and wiki with hybrid BM25 + vector search. Read project state, update tasks, log time, surface portfolio-level insights, and generate status reports, all gated by your org's plan and role permissions, with every operation audited. Built for teams migrating from Microsoft Project Online ahead of its September 2026 retirement.
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Other
Onsellr Marketplace
By Onsellr
Onsellr Marketplace helps people in Australia search, compare and research cars listed on Onsellr. Buyers can open listing details, check availability and, after signing in, request an enquiry, test drive, finance information, trade-in conversation or refundable holding deposit through Onsellr.
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Financial-Services
Ontra
By Ontra
The Ontra MCP Server lets you query your Ontra data directly from Claude and other AI tools — no need to switch between applications. Ask questions about legal entities, ownership structures, funds, people, agreements, tax classifications, jurisdictions, and more. Results respect your existing Ontra permissions, so users only see data they already have access to. Setup takes about a minute via a quick OAuth flow with your Ontra credentials.
Tools: 5
Travel
Oojo
By Dyninno
OOJO is an online travel agency that helps users search, compare, and book travel services, primarily airline tickets, through a digital booking experience
Tools: 3 · Prompts: 1
Data
Open Targets
By OpenTargets
This MCP provides a purpose-built interface and instructions to access and interpret the data and analyses in the Open Targets Platform. The Open Targets Platform is a comprehensive tool that supports systematic identification and prioritisation of potential therapeutic drug targets, integrating publicly available datasets to build and score target-disease associations. It also integrates relevant annotation information about targets, diseases/phenotypes, drugs, variants, GWAS and molecular QTL studies, and credible sets, as well as their most relevant relationships.
Tools: 4
Developer Tools
OpenAI Ads Conversions
By OpenAI
Use OpenAI Ads Conversions to guide Codex through adding or extending Measurement Pixel and optional Conversions API instrumentation in a repository, with local verification helpers and guidance for safe secret handling, deduplication, attribution context, and setup reporting.
Prompts: 1
OpenAI Certified
Learn practical AI skills inside ChatGPT and earn OpenAI Certified credentials.
Tools: 3 · Prompts: 0
Developer Tools
OpenAI Developers
By OpenAI
Use OpenAI Developers in Codex to build AI applications, agents, and ChatGPT Apps with OpenAI docs, the OpenAI API, Apps SDK, and Agents SDK. Connect to the OpenAI Platform (platform.openai.com) and see your Codex-built apps work right out of the box with real OpenAI API keys. Run and locally deploy Agents SDK projects through the Deployment Manager, scaffold ChatGPT Apps, and prepare ChatGPT Apps submission artifacts.
Prompts: 3
OpenAI Platform
Create an OpenAI API key after connecting Platform.
Tools: 0 · Prompts: 0
OpenReplay MCP
By OpenReplay MCP
View OpenReplay sessions, charts, and replays from Claude.
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OpenSTAAD MCP Server
By OpenSTAAD MCP Server
The OpenSTAAD MCP server enables Claude to interact with your STAAD.Pro models and perform various time-consuming tasks like load cases definition, data extraction, repetitive property setting and more. Key Features - Fast and flexible: Enjoy minimal latency, interact with every STAAD.Pro features covered by the OpenSTAAD API. - AI-friendly: Provides documentation, guidance and feedback via dedicated tools to help your AI agent ramp up quickly on the STAAD.Pro API. - Multi-instance support: Connects to multiple running STAAD.Pro instances simultaneously to parallelize tasks across models. - Privacy-first: All processing happens locally on your machine. No data is sent to the cloud. No telemetry. This server requires having STAAD.Pro installed locally and running. If you don't already have it, download STAAD.Pro (www.bentley.com) to get started. Terms: Your use of this connector is subject to the Bentley Systems Terms of Use (www.bentley.com).
Tools: 5
Food
OpenTable
By OpenTable
Find restaurant reservations
Tools: 1 · Prompts: 2
Productivity
Opera Browser Connector
By Opera Norway AS
Connect Opera Browser to ChatGPT. When enabled, it can see open tabs, read page content, take screenshots of the page, and navigate to the page. And, based on the permissions you allow it, it could also view browsing history and close tabs. Once installed, the connector appears in Opera's toolbar, where you can manage connections to ChatGPT.
Tools: 0 · Prompts: 4
Finance
OptimalCover
By Optimal Cover
OptimalCover is an independent pricing transparency tool for Vehicle Service Contracts (VSCs), often called extended warranties. It helps consumers assess whether pricing they encounter is reasonable by comparing it to independent, fair-market benchmarks derived from real data. Unlike dealerships or warranty providers, OptimalCover has no incentive to sell, upsell, or recommend coverage. It exists to provide clarity in an industry known for complexity and inconsistent pricing, so you can make informed decisions with confidence. No pressure. No pitches. Just honest pricing insight.
Tools: 0 · Prompts: 2
Finance
Options Analysis Suite
By Options Analysis Suite, LLC
Options Analysis Suite lets users research options markets and review their synced analysis data in ChatGPT. It supports implied volatility, Greeks, options chains, gamma exposure and regime analysis, FINRA and SEC market-structure data, company fundamentals, pricing-analysis history, FFT scanner results, AI Compute Suite runs, and portfolio and risk snapshots. All tools are read-only and return analyst-oriented summaries for research workflows.
Tools: 32