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16,825 Claude connectors and ChatGPT apps
Business & Operations
Onzaris
By Onzaris Inc.
Onzaris is a sports operations platform for leagues, clubs and associations. Connect your Onzaris account to ask about your schedule, teams and rosters, officials and their availability, venues and closures, competition standings, notifications and announcements, game results and official reports, and registration status. Administrators and owners of an organization can also staff and schedule games: Onzaris recommends compatible officials, then assigns one, creates a game as a draft, or publishes a game, always after the user explicitly confirms. Publishing a game makes it visible and notifies the members of the teams involved through Onzaris. Every write is organization-scoped, audited and idempotent. Sign-in uses OAuth with your existing Onzaris account and is available to organization administrators and owners. Access is limited to the connected organization. Onzaris never returns contact details, birth dates, medical or payment card data through this connector, cannot delete data, does not process payments, and does not provide arbitrary database access.
Tools: 22 · Prompts: 3
Travel
Oojo
By Dyninno
Oojo helps users search and compare live flight options, inspect prices, schedules, stops, and carriers, and open Oojo links to complete booking outside ChatGPT.
Tools: 1
Productivity
Opafex
By Opafex
Most owners of small firms can see AI is useful but cannot tell what to use it for. Opafex turns that question into a specific answer for a UK business. Find what to automate first: describe how your business runs today and get the approaches that fit, the answers that put them there, what to check first and a small first step. What AI does in your sector: what accountancy, recruitment, law, financial planning, insurance broking, estate and letting agency, construction and trades firms automate first, what to watch out for, and whose guidance to read. Check client data before AI: the UK GDPR questions to answer before staff put client or employee information into an AI tool, ordered by what matters most for that tool and that data. Draft a small-firm AI policy: a one-page AI use policy built from your answers, with the steps to take before adopting it. Will automating it pay for itself: the payback on a task in your own numbers, with the time spent checking the output deducted and every assumption stated. The answers are the same every time for the same inputs, written from published guidance. They are questions to ask and starting points, not legal advice. The tools never ask for names or contact details and never quote prices.
Tools: 5 · Prompts: 3
Productivity
Open Calls
By AARON TURKEL
Open Calls gives your AI a phone. Describe what you need to find out and who to call. It navigates phone menus, asks your questions, and returns confirmed answers, supporting quotes and unresolved questions. Choose a voice, language and speaking style; schedule a call, compare recipients or follow up on an earlier result. Follow live progress, answer the assistant’s questions, send notes, stop a call, or approve joining when a person is needed. Hold-and-connect and two-way interpreting support conversations with a verified callback number. Optional recording of standard outbound calls requires every participant’s prior permission. Connect a personal or business workspace to review credit, results and exact usage charges, and manage an existing inbound phone assistant’s greeting, knowledge, hours and forwarding. Status cards keep supported controls in the conversation. Informational calls support consenting recipients with US phone numbers within recipient-local calling windows, workspace permissions and spending limits. This plugin uses existing account entitlements and does not sell credit, subscriptions or initiate purchases.
Tools: 15 · Prompts: 3
Productivity
Open Context
By FOUND Studios LLC
Open Context lets you store, organize, and reuse context across your AI workflows. You can save profiles, documents, instructions, and other structured information in one place, then load exactly what you need into a conversation or tool when you need it. Instead of re-explaining background or copying the same prompts, you work from a shared, persistent source of truth. This helps keep conversations consistent, makes personalization easy, and enables workflows that rely on long-lived knowledge and memory.
Tools: 21
Productivity
Open Context
By FOUND Studios LLC
Open Context lets you store, organize, and reuse context across your AI workflows. You can save profiles, documents, instructions, and other structured information in one place, then load exactly what you need into a conversation or tool when you need it. Instead of re-explaining background or copying the same prompts, you work from a shared, persistent source of truth. This helps keep conversations consistent, makes personalization easy, and enables workflows that rely on long-lived knowledge and memory.
Tools: 23 · Prompts: 3
Creativity
Open Design
By Open Design
Generate and edit websites, presentations, prototypes, and design systems with Open Design directly from Codex.
Prompts: 3
Other
Open Ephemeris
By Open Ephemeris
Open Ephemeris gives ChatGPT real astronomy to work from. Every position comes from the NASA JPL DE440 ephemeris covering 1550-2650 CE at sub-arcsecond precision, the same kernel used for spacecraft navigation, so positions are computed rather than estimated. Ask for a natal chart and an interactive wheel opens in the conversation. Click a planet, a house, or an aspect line and the interpretation loads in place. Switch house systems without asking again. The same applies to Human Design bodygraphs, synastry bi-wheels, transit timelines, Vedic Rashi grids and BaZi Four Pillars charts. Beyond charts: transits and progressions, solar and lunar returns, eclipse timing and local visibility, astrocartography, electional search for timing windows, and fixed-star positions. Free to start, no card required.
Tools: 36 · Prompts: 3
Financial-Services
Open Financial Mortgage Options
By Claratech.ai
Explore mortgage, refinancing, home-equity and debt-consolidation options for your situation in Ontario, Canada, and see the rates Ontario lenders are publishing. If you want a licensed mortgage professional to review your situation, you get a link to Open Financial's own intake form; the connector does not collect or send your contact details. Powered by Clara. Open Financial Inc. | FSRA Mortgage Brokerage Licence #13362. Preliminary scenario analysis and published rate information only; not a mortgage approval, quote, commitment or guaranteed offer.
Tools: 5
Data-Analytics
Open Index
By Open Index
Open Index is a free UK public-data atlas. Find places and Great Britain postcodes, read published figures, compare areas of the same level and rank councils within valid scopes. Figures include their period, source, licence and a page to cite. Coverage gaps are explicit. Deprivation measures are never ranked across nations. The service is read-only and needs no sign-in.
Tools: 5
Data-Analytics
Open Loyalty
By Open Loyalty
Connect Claude to your Open Loyalty instance and manage your loyalty program in plain language. Members: search and look up members, edit profiles, check tier status and transaction history. Points and wallets: add, spend, or transfer points, and review balances across wallet types. Rewards: browse the catalog, create and update rewards, and redeem them for a member. Campaigns and gamification: build and edit earning campaigns, achievements, badges, and referral programs. Segment members with custom events and segments. Tiers and transactions: configure tier sets, register transactions, and match them to members. Analytics: pull program metrics and audit logs to see what is working. Multi-store: works across all your store codes (tenants). Claude asks which store to use and shows the store code on every write.
Tools: 153
Education & Research
Open Medicine
By Open Medicine
Open Medicine helps users search published clinical algorithms and retrieve a selected algorithm's details, flowchart data, references, and supporting clinical analysis.
Tools: 3 · Prompts: 3
Finance
Open Natural Gas
By adPharos
Open Natural Gas helps Georgia residents compare residential natural gas prices and estimated annual bills using Georgia Public Service Commission filings. It can compare current plan costs for a household's annual therm usage, show factual information about a Georgia gas marketer, and summarize historical rate movements. It is read-only: it does not enroll customers, make purchases, recommend marketers, or cover electricity, commercial gas, or states other than Georgia.
Tools: 3 · Prompts: 3
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: 5
Productivity
Open-day Question Pack
By DUOPORE VENTURES PTE. LTD.
Builds a programme visit question pack from explicitly missing facts. Keeps supplied answers visible and follows your priorities. It does not retrieve programme facts, claim answers or infer admission chances. Uses only adult user-controlled facts; review the result. No external lookup, storage or sending. Uses explicitly supplied structured inputs. Server computations are transient; the standalone website computes locally in your browser. Review the output before exporting it. No persistent account records, external source retrieval, sending, transactions or paid model calls. CSV/JSON review and export are available on the standalone website. MCP requests are capped at 128 KiB and computed responses at 256 KiB; individual field and record limits also apply.
Tools: 1 · Prompts: 2
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
Education & Research
OpenAI Certified
By App developer
Learn practical AI skills inside ChatGPT and earn OpenAI Certified credentials.
Tools: 3
Developer Tools
OpenAI Developers
By OpenAI
Manage OpenAI API keys and view organization billing and API usage.
Tools: 4 · Prompts: 3
OpenAI Platform
Create an OpenAI API key after connecting Platform.
Tools: 0 · Prompts: 0
Sales-And-Marketing
OpenAdLibrary
By OpenAdLibrary
OpenAdLibrary is a native ad spy tool, Meta ad spy tool and TikTok ad research library for media buyers, affiliates and marketing teams. Connect Claude to captured public ads for competitor research, ad creative inspiration and landing page analysis. Search native and display ads captured on publisher websites, plus ads collected from the Meta and TikTok ad libraries. Use it for Facebook ad research and native advertising intelligence. Filter by keyword, advertiser, country, ad network, platform and format. See each ad's creative, advertiser, network, countries, and first and last seen dates. Explore advertiser profiles, compare brands side by side, see who leads a market, find rising advertisers and study ad-copy trends and headlines from long-running ads. Look up publishers, ad networks and captured landing pages. Try: "Find recent native ads for car insurance in the US" or "Compare my competitors' Meta ads and highlight their main hooks." With an OpenAdLibrary account you can also save ads to boards, follow advertisers, check your plan's usage, and read and set up your campaign tracking (Track): campaigns, offers, landers, flows, traffic sources and affiliate networks. Every Track change is shown to you first and applied only when you confirm. Counts are how often OpenAdLibrary saw an ad, not spend, reach or profit. Long-running ads do not prove performance. OpenAdLibrary never clicks or visits a live ad, and this connector does not publish ads to ad networks or change ad-network budgets or bids. Ad design (Creative Studio) is used on openadlibrary.com.
Tools: 24
Data-Analytics
OpenAlex
By OurResearch
OpenAlex is a free, open index of the world's scholarly research: more than 250 million works (journal articles, preprints, books, datasets), the citations that connect them, and 100 million+ author profiles linked to the institutions, journals, funders and topics behind them. The data is CC0 and maintained by OurResearch, a nonprofit. With this connector Claude can search the literature the way a librarian would. Ask for the most-cited papers on a topic since a given year, recent open-access reviews, or everything a lab has published. Search by keyword with Boolean operators, or describe what you're looking for in a sentence and let semantic search find papers that match the meaning. Trace who cites a paper and what it builds on. Paste a bibliography and have every reference checked against the index, with DOIs filled in and fabricated citations flagged. For a systematic search, Claude writes the query in OQL, OpenAlex's query language, previews the count and a sample, tightens it, and hands you the exact query to reproduce or cite. It also answers the questions research offices, libraries and funders ask. Profile an institution's, funder's or topic's output in one call: volume by year and type, open-access share, share in the top 10% most cited, strongest fields, top collaborating countries and institutions. Find the researchers at a university who work on a topic, the open-access journals in a field with no fees, or the companies in a country publishing on a technology. Every result comes back with title, authors, venue, year, citation count, field-weighted citation impact, open-access link and abstract, ready to cite. Full records include every author with affiliations and ORCID, funding, topics and citations by year. Sign in with a free OpenAlex account and the connector runs on your own API budget ($1 of usage per day free, more with prepaid usage or a plan). The connector is read-only and stores no conversation data.
Tools: 14
Creativity
OpenArt
By OpenArt Inc
Create images and video on OpenArt without leaving ChatGPT. Just describe what you want, add reference images if you like, and pick from the latest AI models: Seedance 2.5 / 2.0, GPT Image 2.5, Nano Banana Pro / 2, Minimax H3 / H3 max, Gemini Omni Flash, Wan 3.0, and more. OpenArt generates it and brings the result back into the chat, updating as it finishes, so you can go from an idea to a finished image or video in a single conversation. No editing tools required. Revisit your past creations anytime, keep your work organized in projects, and check your credit balance as you go. New models appear here automatically as OpenArt adds them.
Tools: 19 · Prompts: 2
Productivity
OpenArt Lite
By OpenArt
Bring OpenArt's image and video generation straight into Claude. Connect once and generate as your own OpenArt account — describe what you want in the chat, pick from OpenArt's library of models, and get your creations back without ever leaving the conversation. Your credits, projects, and uploads all work exactly as they do on OpenArt, now driven entirely through Claude.
Tools: 14
Business & Operations
OpenCase
By OpenCase Inc.
OpenCase checks legal writing against the law. It confirms that the cases, statutes, and regulations a brief, memo, or contract cites exist as cited, that quoted language appears word for word in the source, and whether a case is still good law. It also answers legal questions with authority it has retrieved and verified. Tools: - Verify citations in legal text: finds every citation in a document and checks each one. - Resolve legal citations: checks a list of citations and returns source details. - Check a quotation: confirms a quote appears word for word in the authority, honoring ellipses and brackets. - Get legal authority: retrieves one authority's metadata and text. - Check case validity and Get case treatments: report a case's good-law flag and the decisions that cited it. - Research a legal question and Review document against law: return cited answers and grounded findings. - Detect legal citations: lists citations and their positions without checking them. - Search federal court dockets and Get a docket filing: search CourtListener RECAP. Coverage spans US federal and state law and many other jurisdictions. OpenCase is a research tool, not a lawyer: a citation it cannot find may still exist, and a verified citation still needs a lawyer's judgment. Requires an OpenCase account, which you can create while connecting. Free accounts include 10 tool calls a day; a paid plan removes the limit.
Tools: 11 · Prompts: 3
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