--- title: "#fintech articles | Hashnode" description: "Explore 1,185 articles tagged #fintech on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/fintech" --- Tag # #fintech 1,185 posts · 175 followers [BotCookery](https://hashnode.com/@botcookery) · [3h ago](https://hashnode.com/posts/weather-bot-kalshi-polymarket-us-12-percent-vs-2-percent/6af5d54107478bdf7d27947c) ### [Our weather bot gave 12% to a Miami high that both markets priced at 2%. That wasn't an edge.](https://botcookery.hashnode.dev/weather-bot-kalshi-polymarket-us-12-percent-vs-2-percent?utm_source=hashnode&utm_medium=feed) We rebuilt the BotCookery Kalshi + Polymarket US temperature bot from its own prompt on Oct 25, 2026 and ran it in paper mode on Miami: a 403 that killed every cycle, a 1¢ buy on a day that was already decided, repeat signals, no fees, and no way to tell the model from the market 9 min read · [botcookery.hashnode.dev](https://botcookery.hashnode.dev/weather-bot-kalshi-polymarket-us-12-percent-vs-2-percent?utm_source=hashnode&utm_medium=feed) [locaihost data](https://hashnode.com/@locaihostdata) · [7h ago](https://hashnode.com/posts/1-200-google-play-reviews-of-monzo-revolut-wise-and-starling-in-10-seconds-who-answers-the-angry-ones/6af5a49cfe8881e25596084a) ### [1,200 Google Play reviews of Monzo, Revolut, Wise and Starling in 10 seconds: who answers the angry ones](https://locaihost.hashnode.dev/1-200-google-play-reviews-of-monzo-revolut-wise-and-starling-in-10-seconds-who-answers-the-angry-ones?utm_source=hashnode&utm_medium=feed) We pulled the 300 newest UK Google Play reviews of four money apps in one run for under a cent of compute. Starling replied to every 1 and 2-star... 6 min read · [locaihost.hashnode.dev](https://locaihost.hashnode.dev/1-200-google-play-reviews-of-monzo-revolut-wise-and-starling-in-10-seconds-who-answers-the-angry-ones?utm_source=hashnode&utm_medium=feed) [BotCookery](https://hashnode.com/@botcookery) · [1d ago](https://hashnode.com/posts/grok-kalshi-paper-bot-retry-after-html-200-hung-host/6af485ff4944ce9476305646) ### [Kalshi said "come back in 3 seconds." Our Grok-built paper bot came back in half a second.](https://botcookery.hashnode.dev/grok-kalshi-paper-bot-retry-after-html-200-hung-host?utm_source=hashnode&utm_medium=feed) We rebuilt the BotCookery Grok trading-bot recipe from its own prompt on Nov 5, 2026 and drilled the HTTP edges: Retry-After, HTML 200s, a hung host and thin demo books 8 min read · [botcookery.hashnode.dev](https://botcookery.hashnode.dev/grok-kalshi-paper-bot-retry-after-html-200-hung-host?utm_source=hashnode&utm_medium=feed) [TechnoXander](https://hashnode.com/@technoxander47) · [1d ago](https://hashnode.com/posts/accountability-is-a-design-parameter-where-the-human-step-lives-in-the-ui/6af478f9fbf5ae943b226714) ### [Accountability Is a Design Parameter: Where the Human Step Lives in the UI](https://technoxander.hashnode.dev/accountability-is-a-design-parameter-where-the-human-step-lives-in-the-ui?utm_source=hashnode&utm_medium=feed) A common pitch for AI in compliance says “human in the loop”. A common outcome is a button labelled “Approve”. Those aren’t the same thing. The principle In AML, accountability sits with a named perso 2 min read · [technoxander.hashnode.dev](https://technoxander.hashnode.dev/accountability-is-a-design-parameter-where-the-human-step-lives-in-the-ui?utm_source=hashnode&utm_medium=feed) [Feasibilitypro](https://hashnode.com/@feasibiltypro) · [1d ago](https://hashnode.com/posts/estimating-real-estate-development-capacity-and-gdv-with-python/6af45dc7e7f82a7a06e9cd68) ### [Estimating Real Estate Development Capacity and GDV With Python](https://feasibilitypr.hashnode.dev/estimating-real-estate-development-capacity-and-gdv-with-python?utm_source=hashnode&utm_medium=feed) Learn how to calculate gross floor area, net saleable area, property mix, and Gross Development Value using Python through a practical real estate feasibility example. 11 min read · [feasibilitypr.hashnode.dev](https://feasibilitypr.hashnode.dev/estimating-real-estate-development-capacity-and-gdv-with-python?utm_source=hashnode&utm_medium=feed) [Harsha](https://hashnode.com/@harsh017) · [1d ago](https://hashnode.com/posts/changing-payment-gateways-without-breaking-wallet-accuracy-lessons-from-five-companies/6af40b2a3f648bea981f79b8) ### [Changing Payment Gateways Without Breaking Wallet Accuracy: Lessons From Five Companies](https://langchainandopenai.hashnode.dev/changing-payment-gateways-without-breaking-wallet-accuracy-lessons-from-five-companies?utm_source=hashnode&utm_medium=feed) Explore wallet accuracy during payment gateway changes, with lessons from GeekyAnts, Stripe, Adyen, PayPal, and Square. 4 min read · [langchainandopenai.hashnode.dev](https://langchainandopenai.hashnode.dev/changing-payment-gateways-without-breaking-wallet-accuracy-lessons-from-five-companies?utm_source=hashnode&utm_medium=feed) [TradingAIHub](https://hashnode.com/@tradingaihub) · [2d ago](https://hashnode.com/posts/a-free-api-and-mcp-server-for-finding-finance-ai-tools/6af348705ed175434bbe3cec) ### [A Free API and MCP Server for Finding Finance AI Tools](https://tradingaihub.hashnode.dev/a-free-api-and-mcp-server-for-finding-finance-ai-tools?utm_source=hashnode&utm_medium=feed) Query 104 weekly-checked finance MCP servers, agent skills and APIs over REST or MCP: no key, no sign-up 7 min read · [tradingaihub.hashnode.dev](https://tradingaihub.hashnode.dev/a-free-api-and-mcp-server-for-finding-finance-ai-tools?utm_source=hashnode&utm_medium=feed) [Abdul-Jemeel Odewole](https://hashnode.com/@intellect) · [2d ago](https://hashnode.com/posts/how-i-built-a-bank-suggestion-ranker-that-learns-every-night/6af25961bcdeaec5c22b16e1) ### [How I Built a Bank Suggestion Ranker That Learns Every Night](https://codewithintellect.hashnode.dev/how-i-built-a-bank-suggestion-ranker-that-learns-every-night?utm_source=hashnode&utm_medium=feed) The message came in on a Monday morning: "Smart bank search is not working. It returns empty most of the time now. We need it fixed today." If you haven't built a transfer screen in Nigeria, here is t 10 min read · [codewithintellect.hashnode.dev](https://codewithintellect.hashnode.dev/how-i-built-a-bank-suggestion-ranker-that-learns-every-night?utm_source=hashnode&utm_medium=feed) [Carol Dsilva](https://hashnode.com/@caroldsillva) · [2d ago](https://hashnode.com/posts/i-won-3-000-at-a-hackathon-by-building-7-ai-agents-that-catch-fraud-before-it-s-paid/6af2d74c2ad48bb5eacded5e) ### [I Won $3,000 at a Hackathon by Building 7 AI Agents That Catch Fraud Before It’s Paid](https://caroldsillva.hashnode.dev/i-won-3-000-at-a-hackathon-by-building-7-ai-agents-that-catch-fraud-before-it-s-paid?utm_source=hashnode&utm_medium=feed) How Team Fire Exit took 2nd place at Vultr Agent Rush with a multi-agent payment fraud investigator 11 min read · [caroldsillva.hashnode.dev](https://caroldsillva.hashnode.dev/i-won-3-000-at-a-hackathon-by-building-7-ai-agents-that-catch-fraud-before-it-s-paid?utm_source=hashnode&utm_medium=feed) [RONI DAS](https://hashnode.com/@ronidas) · [2d ago](https://hashnode.com/posts/how-canada-s-new-real-time-rail-moves-one-payment-and-what-it-teaches-about-backend-design/6af33769d90026f2051a4213) ### [How Canada's new Real-Time Rail moves one payment, and what it teaches about backend design](https://systemdesignacademy.hashnode.dev/how-canada-s-new-real-time-rail-moves-one-payment-and-what-it-teaches-about-backend-design?utm_source=hashnode&utm_medium=feed) Payments Canada switched on a 24/7 system on 9 November 2026 that settles every payment between banks in real time. Here is how one payment travels, why the fraud checks come first, and why a bank asks before it retries. 7 min read · [systemdesignacademy.hashnode.dev](https://systemdesignacademy.hashnode.dev/how-canada-s-new-real-time-rail-moves-one-payment-and-what-it-teaches-about-backend-design?utm_source=hashnode&utm_medium=feed)