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17,416 Claude connectors and ChatGPT apps

Education
Coteach

Coteach

By Coteach

Coteach helps K-12 math educators create classroom-ready diagrams directly in Claude. Describe the visual you need in plain language, and Coteach generates up to four separate math diagrams. It is useful for lesson planning, worksheets, practice problems, and visual scaffolds such as number lines, tape diagrams, arrays, area models, coordinate planes, and fraction models.

Tools: 1

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Productivity
Cotokim

Cotokim

By CSolar Energia

Cotokim helps expecting parents in Brazil, the United States and Mexico plan the baby's layette. Tell it the city and the month and year the baby is due, and it builds a checklist sized to the local climate in the first months: how many bodysuits, sleepers, socks and other items to have in each size, split into what to have before the birth, up to six months, and later. The list opens as an interactive checklist in the chat, in English, Spanish or Portuguese. It also answers practical questions with small calculators: - how many diapers to have before the birth, by size, for one baby or twins; - how to dress the baby for a given room temperature, in °F or °C, with safe-sleep cautions from public health sources; - clothing sizes by age, weight and length (Carter's labels in the US, local sizes in Mexico and Brazil); - a hospital bag checklist for each country; - in Brazil, how to split diaper sizes among baby shower guests. What it uses: only the city and the month and year the baby is due, never the exact date or any name, plus what each calculator asks (room temperature, number of guests, the baby's age, weight or length). Nothing is stored; only daily usage counts per tool are kept. Coverage: 100 cities in the United States, 48 in Mexico and every municipality in Brazil. Quantities are planning estimates, not medical advice; for the baby's health, talk to a pediatrician. A printable version of the list opens on cotokim.com.

Tools: 8 · Prompts: 3

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Travel
Cottages

Cottages

By Alpic / Awaze

There's a cottage with your name on it in our ChatGPT app! Tell us what you're looking for in your own words and let us show you what's available from over 18,000 quality-checked cottages across the UK. Need more information or want to check other options? Ask away! With clear pricing, verified reviews, and stress free booking. we'll help find the right cottage for you across coast and countryside, from romantic hideaways to big family stays. Discover real availability, compare favourites, and book with confidence, all in one easy place.

Tools: 1 · Prompts: 2

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Data-Analytics
Council of AI

Council of AI

By CSOAI Ltd (Council of AI)

Council of AI (CSOAI Ltd, UK) measures whether published claims about AI models, agents and tokenised assets can be checked by a third party. Every result is published as a signed, timestamped record that anyone can re-derive from the same public inputs. This connector gives Claude read-only access to those records: - Read the live GSPC board: each axis, whether it is measured or not yet measured, and the evidence behind each row. - Verify a signed measurement card, a measurement capsule or a Merkle inclusion proof. - Look up every published measurement about one MCP server or A2A endpoint. - Read counts from our MCP handshake census and x402 catalogue checks. - Preview what an evidence bundle about one subject would contain. Every tool is free and read-only. The connector takes no payments and needs no account. What it is not: a certification, a rating or a compliance opinion. Anything not yet measured is reported as unmeasured, never as zero, and anything that could not be checked says so.

Tools: 14

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Business & Operations
Counter

Counter

By Counter

Counter connects your builders’-merchant price book to ChatGPT so you can price up a job in seconds. Ask for any material and Counter returns your own agreed prices so your estimates are fast and accurate.

Tools: 6 · Prompts: 3

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Productivity
Countersignatory

Countersignatory

By Countersignatory Ltd

Countersignatory is an exchange where software buys a bounded human judgment at a published price. An agent that reaches a step it should not take alone (send this refund, publish this page, accept this label) can price the task, buy it, and get a named human's answer back. What you can buy today: Check (check.general), one screened human, $1.25 at a 24-hour deadline. Three task templates: approval (approve or reject, with a reason), verification (true, false or cannot_tell, with a reason) and judgment (one label from up to 10, with a reason). Each answer says who gave it and how they are disclosed. How it works: 1. countersignatory_quote prices a task, free and read-only. 2. countersignatory_place_order creates an unpaid order and returns two ways to pay: an x402 payment request (USDC on Base) for an agent with a wallet, and a card checkout link for a person. 3. A responder answers within the deadline, or the order is refunded in full automatically. 4. countersignatory_get_order returns the status and the answer. countersignatory_spot_index shows the going rate for every market, with urgency multipliers, the published responder wage floor ($0.25 net per active minute) and the derivation of each price. Markets not yet live (Consensus of 3 or 5, named-expert Countersign, notarisation) can be quoted but not bought; countersignatory_register_interest records demand for them. Refused at intake: CAPTCHAs and bot checks, logging in or entering credentials, contacting third parties, medical, legal or financial advice, and anything sexual or involving minors. No account or key is needed to quote or order. While volume is low, orders are answered by hand by a named group (currently the founder, disclosed as such), so deadlines are at least one hour.

Tools: 5

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Productivity
Country Club for Business

Country Club for Business

By Country club

The Country Club for Business connector brings your sponsorship dashboard into Claude. Ask in plain language and Claude works directly with your Country Club data on your behalf. With it you can: • Opportunities — review event opportunities, accept them, stall or resume, and inspect seating and status. • Target companies — build and manage target-account lists, add notes, set status and owners, and review contacts and recommendations. • Target suggestions — generate suggested accounts, review the stats behind them, and accept or reject each one. • Products — create, review, update, and remove products in your catalog. • Companies & people — search companies, view their employees, and browse or match the people most relevant to you. • Team — invite and manage team members, and add or remove attendees for each event. You sign in once with your existing Country Club account over OAuth 2.1 — Claude never sees your password, only sees data your account can access, and asks before any action that changes or removes data. Disconnect anytime to revoke access. Full documentation: https://country.club/connectors?tab=business

Tools: 50

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Financial-Services
Countz Accounting

Countz Accounting

By Countz Inc

Supplies playbooks for countz accounting skills. The playbooks detail how accounting analyses are done. For example: tie out ledgers, sub-ledgers and schedules; reconcile cash to bank and payables to supplier statements; prove out cash ahead of an audit; build a quality-of-earnings EBITDA bridge; test ASC 606 revenue recognition and ASC 842 lease accounting; trace revenue leakage from invoice to cash.

Tools: 3

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Coupler.io

Coupler.io

By Coupler.io

Key features: Access data via natural language: Analyze data without SQL or coding skills. Connect to hundreds of data flows and dashboards, and get answers just by asking like you'd ask your colleague. Always stay up to date: Coupler.io keeps your data fresh based on the schedule you create, so Claude delivers on-demand reports and insights whenever you need them. Blend data across sources: Combine data from multiple sources and interact with it directly in your AI chat. Analyze big data with AI: Coupler.io MCP enables Claude to handle large datasets without limits, so you get complete insights without context window restrictions. * Turn your data into dialogue: analyze, explore, and automate insights directly in Claude.

Tools: 23 · Prompts: 1

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Data & Analytics
Coupler.io

Coupler.io

By Railsware Products Studio, LLC

Analyze multi-channel marketing, financial, sales, e-commerce, and other business data within ChatGPT by connecting to your Coupler.io data flows – query marketing, sales, and finance metrics from hundreds of sources. Fetch and transform raw data from hundreds of platforms like Google Ads, Meta Ads, HubSpot, and QuickBooks into actionable intelligence for smarter, faster decision-making with accurate, up-to-date business information.

Tools: 2 · Prompts: 2

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Finance
Coupon Hive

Coupon Hive

By Patriot Web Solutions

Coupon Hive interviews you about what counts as a useful deal, searches broadly, verifies important terms at first-party sources, and prepares recurring watches that alert only when something materially changes.

Prompts: 3

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Media-Entertainment
Courierpr.com

Courierpr.com

By Courierpr.com

Courierpr.com is a press release wire. Companies file releases and each one is published as a permanent article, organised into six newsroom desks and twenty categories. This connector lets Claude look them up for you. Ask what is new on a desk, search for a company, product or topic, open one release for its opening paragraph and key facts, or find out how to publish a release. Every result links to the full release page on Courierpr.com. The connector is read-only. It cannot file, change or withdraw anything. It needs no account, no sign-in and no API key. It returns public content only: titles, company names, dates, categories, short summaries and links. Media contact details are never returned, because the website itself keeps them behind a human check. Releases are written by the companies they describe, so Claude presents them as company statements, not independent reporting.

Tools: 7

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Data-Analytics
Courrt

Courrt

By Superlinear Technologies Private Limited

Courrt is a research tool for Indian case law. It searches the full corpus of Supreme Court (~35,000) and High Court (~17 million) judgments plus ~36,000 central and state statutes, returning verbatim text from official court PDFs with neutral and law-report citations and a source URL for verification. Hybrid keyword-plus-semantic search supports filtering by court, date, case type, statute/section and disposition, with proximity and synonym-aware queries. Every judgment carries editorial catchwords and the acts it turns on. Fidelity is core: nothing is paraphrased as fact without the underlying text.

Tools: 12

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Productivity
Course Criteria Comparison

Course Criteria Comparison

By DUOPORE VENTURES PTE. LTD.

Compares supplied programme ratings under your weighted criteria on a 0–5 scale. Displays evidence sources and missing criteria; an overall score is withheld when positive-weight facts are missing. Ratings are your judgments, not verified course facts or admission recommendations. 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

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Education & Research
Course Studio

Course Studio

By Colossyan

The Course Outline Generator helps you instantly create structured training outlines for corporate learning, compliance, onboarding, and upskilling. Just describe what you want to teach, who it’s for, and how long the course should be and get a ready-to-use blueprint with clearly defined lessons. What you can do Generate structured course outlines from a single prompt Define learning goals, audience, and course duration Upload reference material (PDF or text) or use your chat context Expand and review lessons one by one Further edit and export your outline as a PDF file Perfect for L&D and HR teams Managers and team leads Compliance and security training Soft-skills and leadership development Corporate onboarding and upskilling Once your outline is ready, you can seamlessly continue building your full course with Colossyan’s interactive course creator.

Tools: 1 · Prompts: 1

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Education & Research
Coursekin

Coursekin

By ALEXANDER GREGORY AMMANN

Create a study assistant from your class name, textbook and syllabus. Ask for explanations, practice questions, feedback on your reasoning, or course policies with verified source references. Uses your host's native attachments and conversation; no separate Coursekin account or API key.

Prompts: 3

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Education
Coursera

Coursera

By Coursera

Coursera helps learners find and watch relevant lecture videos inside ChatGPT based on their learning goals, skill level, preferred topic, course interest, and desired learning format. The app returns a playable course video preview with course context, instructor details, learning objectives, skills, and related Coursera courses.

Tools: 1 · Prompts: 1

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Productivity
Coursera

Coursera

By Coursera

Bring your organization's trusted Coursera catalog into the flow of your Claude conversations. The Coursera connector enables seamless integration between Claude and your learning content, allowing you to instantly discover courses, short videos, hands-on projects, learning paths, and certificates. Going beyond simple search, the connector makes active learning a native part of your day by dynamically generating real-world practice scenarios, like professional role plays, grounded in verified learning material. Bridge theory to practice in a safe environment and receive structured feedback to accelerate skill mastery, all without leaving the chat.

Tools: 1 · Prompts: 1

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Education & Research
Coursera Learning

Coursera Learning

By Coursera

Coursera Learning helps learners discover courses, videos, guided projects, and curricula; learn concepts in interactive sessions; and practice professional or technical skills in ChatGPT.

Tools: 10 · Prompts: 1

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Productivity
Court Reservation

Court Reservation

By Christoph

Court Reservation lets signed-in club members find free tennis and padel courts, look up club booking rules, search partners by name, book a ball machine with a court, join club events when attaching is enabled, issue pyramid challenges, create a booking, reschedule it, or cancel it. ChatGPT talks to the Court Reservation MCP at https://mcp.courtreservation.io/mcp. You sign in with your existing Court Reservation account via OAuth. The assistant only acts as that member. Club rules stay on the Court Reservation API. Create, cancel, reschedule, event join/leave, challenges and match results require an explicit confirmation in the chat. Paid slots are not completed here; the member pays in Court Reservation if the API requires payment.

Tools: 16

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Education & Research
Court Rules

Court Rules

By Court Rules

Court Rules looks up what a specific judge or court requires before you file. It covers standing orders, individual practices, local rules and courtroom procedures for US federal and state courts, and links each rule to its source document, with the page and section where available. Ask for a judge's page limits, courtesy copy requirements, pre-motion conference steps, electronic filing and service rules, or filing fees. Check whether a court is closed on a date. Open a judge in the side panel to browse the extracted rules next to their quoted source text. Court Rules also includes privacy and consumer protection enforcement actions from the FTC and state attorneys general, with fines, violations and source links. Coverage varies by court. Rules are extracted from court documents and can lag a new standing order, so confirm against the linked source before filing. Court Rules is reference data and is not legal advice.

Tools: 10 · Prompts: 3

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Business & Operations
CourtAPI

CourtAPI

By Inforuptcy, LLC

Search and review US federal court cases, dockets, documents, claims, parties, creditors, and firm activity through CourtAPI. Cached research tools are read-only. Clearly labeled live PACER tools can update records or purchase documents and may incur PACER fees after explicit user approval. CourtAPI provides factual court-record research, not legal advice, and does not cover state courts or government-identifier searches.

Tools: 19 · Prompts: 3

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Education & Research
CourtListener

CourtListener

By Free Law Project

Connects Claude to CourtListener, the Free Law Project's legal research platform, with access to millions of U.S. court opinions, PACER dockets, judge profiles, oral arguments, and citation data. Search case law across federal and state courts, retrieve full case metadata, extract and verify legal citations against a canonical database, and set up alerts for new opinions or docket updates. Built and operated by Free Law Project, a 501(c)(3) nonprofit dedicated to making the law broadly accessible. Suited for attorneys, legal researchers, journalists, academics, and pro se litigants who need fast, reliable access to primary legal sources.

Tools: 19 · Prompts: 3

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Travel
CourtlyGo: Tennis, Pickleball and Padel Courts

CourtlyGo: Tennis, Pickleball and Padel Courts

By CourtlyGo

CourtlyGo is an open database of tennis, pickleball and padel courts, built from OpenStreetMap and cleaned for use by AI assistants and apps. Ask Claude where to play near a city or a point: it searches courts by sport, surface, lighting, indoor or outdoor, free or paid, public access and number of courts, and returns the address or the park or street nearby, with a link to the OpenStreetMap record. Private and likely private courts are hidden by default. Tools (all read-only): - search_courts: search by city, metro area or latitude/longitude with filters. - get_court: full details of one venue by id. - list_coverage: the covered cities, number of venues per sport and the data date. No account and no sign-in are needed. Records can be incomplete: "unknown" means the property is not mapped in OpenStreetMap, not that the answer is no. Every answer carries the data date and attribution. Data: © OpenStreetMap contributors, ODbL 1.0 (https://www.openstreetmap.org/copyright). The same data is available as JSON files per city and on the website https://courtlygo.com. Contact: hello@courtlygo.com

Tools: 3

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