Tooling·Originally published Sep 7

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CopilotKit: useFrontendTool can opt into WebMCP so browser agents call frontend tools

Marwan Atef (@Marwan_3atef) reported a CopilotKit product change: every useFrontendTool can opt into WebMCP so browser agents such as ChatGPT Atlas discover and call frontend tools instead of only screenshotting the page. Same React API, plus readOnlyHint annotations. The official blog post Introducing WebMCP for CopilotKit is live.

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✓useFrontendTool can opt into WebMCP so browser agents call frontend tools.
✓Same React API with readOnlyHint annotations.
✓Official blog: Introducing WebMCP for CopilotKit.

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About this article: compiled by the AICoder newsroom with AI assistance, based on the official and press sources cited above and checked against human-set editorial standards; vendor-reported figures are attributed as such.

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OpenAI launches ChatGPT Wallet: dots agents can pay for you with network tokens instead of real card numbers, every purchase needs a biometric check, US Pro users first

On November 13 OpenAI announced ChatGPT Wallet, built with American Express, Mastercard and Visa, which lets dots agents complete purchases after the user approves them. At payment time the card network issues a token in place of the real card number, so neither the business nor the agent sees it; before each purchase the user reviews the items, total and card and confirms with Face ID or a fingerprint. It is rolling out now in dots to US ChatGPT Pro users aged 18+, alongside a Commerce Partner Playbook for businesses.

Tooling1d ago

Lightning Labs Open-Sources pi402: Coding Agents Pay for Inference per Token in Bitcoin over Lightning, with No Accounts, API Keys or Cards

On November 12 Lightning Labs released pi402, an extension for the Pi coding agent with an embedded Wavelength Lightning wallet. When the agent calls a paid inference API, it pays automatically over L402 or MPP, and the proof of payment doubles as the API key, so there is no sign-up and no credit card. Sellers put Aperture v0.6.0 in front of an existing inference API and price per token with meterd or lightmeter. The whole stack is open source (MIT). Lightning Labs' example rate of 1 msat per input token and 2 msat per output token works out to about $0.80/$1.61 per million tokens at a bitcoin price of about $80,500.

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DeepSeek Opens Its Full App Feature Set Through the API: deepseek-flash Gets Built-in Web Search, Deep Thinking Search, File Input, URL Reading and Safety Checks, Plus Standalone OCR, ASR and TTS APIs and an MIT Open-Source Chat Demo

On November 13, DeepSeek said the capabilities behind the DeepSeek App are now available through its API. V4.1-Flash (model name deepseek-flash) supports server-side web search (including image search with citations), deep thinking search, file input for PDF, Office and image files, automatic reading of links in user messages, and input/output safety checks across the Messages, Responses and Chat Completions protocols. OCR, speech-to-text (ASR) and text-to-speech (TTS) also launch as standalone APIs. Tool calls are billed on top of token charges: Search and Fetch cost $0.75 per 1K requests, OCR $0.225 per 1K pages, ASR $0.058 per hour and TTS $0.225 per 10K characters (both at a limited-time 50% discount). DeepSeek also open-sourced an MIT-licensed chat front end that can import DeepSeek chat history. Public-facing apps must enable safety checks.

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CopilotKit: useFrontendTool can opt into WebMCP so browser agents call frontend tools

Key Takeaways

Key Decision Metrics at a Glance

Turn your technical choice into a development budget

AI Coding Ecosystem & Action Hub

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Lightning Labs Open-Sources pi402: Coding Agents Pay for Inference per Token in Bitcoin over Lightning, with No Accounts, API Keys or Cards

DeepSeek Opens Its Full App Feature Set Through the API: deepseek-flash Gets Built-in Web Search, Deep Thinking Search, File Input, URL Reading and Safety Checks, Plus Standalone OCR, ASR and TTS APIs and an MIT Open-Source Chat Demo

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