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ProgrammingDEV Community ·

MCP Apps Must Nail OAuth 2.1, Scopes, and Enterprise SSO to Win Procurement

Model Context Protocol (MCP) applications rely on three dominant authentication patterns: OAuth 2.1 with PKCE, API key handoff, and enterprise SSO via identity providers such as Entra ID or Google OAuth. The MCP specification mandates OAuth 2.1 with PKCE for remote servers, along with Dynamic Client Registration (RFC 7591) and Authorization Server Metadata (RFC 8414). Enterprise-ready deployments require scopes structured per resource, verb, and sensitivity level, combined with bounded token lifetimes, immediate revocation, and customer-facing audit logs. Security teams evaluating MCP apps apply the same OAuth review standards used for third-party SaaS, with additional scrutiny on how non-human agents are constrained within granted permissions. Experts warn that a weak authentication design signals a weak product overall, making auth strategy a core business and procurement decision rather than a purely technical one.

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ProgrammingDEV Community ·

How to Sync Shopify, Amazon, TikTok Shop and eBay with One China Warehouse

Sellers managing multi-channel e-commerce from a single China-based inventory pool face a critical challenge: reconciling different order models across platforms like Shopify, Amazon FBM, TikTok Shop, and eBay without overselling shared stock. The core solution is a single authoritative inventory ledger that processes reservations atomically, ensuring no two channels can simultaneously commit the last available unit. All incoming channel orders must be normalized into one internal format at the point of ingestion, with customs and shipping decisions made at routing time rather than at the border. Tracking write-backs to each channel must be triggered immediately on dispatch, not batched, as platforms like Amazon FBM and TikTok Shop impose penalties for late or missing shipment confirmations. Businesses evaluating a China-origin third-party logistics provider should verify that the warehouse management system supports webhook-driven intake with idempotency guarantees, a unified inventory pool, and per-order carrier selection across all channels.

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ProgrammingDEV Community ·

All Major AI Clients Support MCP by Mid-2026, But Differ Widely in Reach

As of mid-2026, all six leading AI clients — Claude, ChatGPT, Cursor, Microsoft Copilot, Gemini, and Perplexity — support the Model Context Protocol (MCP), a standardized JSON-RPC 2.0 framework for AI tool integration. Despite sharing the same underlying protocol, the clients differ significantly in distribution models, authentication patterns, target audiences, and app discovery mechanisms. Claude is considered the strongest option for prosumer and knowledge-worker use cases, while ChatGPT offers the largest user base and a more mature app marketplace. Cursor is best suited for developer-tool companies, Microsoft Copilot leads for enterprise environments tied to Microsoft 365, and Gemini is most relevant for Google Workspace-heavy audiences. Analysts note that no client has yet established a mature paid-app pathway, and agent-led routing is currently the fastest-growing discovery channel across the ecosystem.

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ProgrammingDEV Community ·

Building an MCP Server in 2026 Can Cost Up to $1M or More

Developing a Model Context Protocol (MCP) server in 2026 ranges from $100K–$300K for a basic read-only single-client build to over $1M for an agent-resident implementation, according to real partner engagements and in-house build data. The primary cost drivers are not the server code itself but rather authentication complexity, security auditing, tool-surface design, and distribution requirements. Adding a second AI client multiplies the total cost by 1.4–1.7 times, while security line items such as OAuth setup, audit logging, and SOC 2 certification can add $180K–$380K to a level-2 build alone. In-house builds typically run 60–80% of partner costs in direct spend, though opportunity costs are not factored in. Beyond the initial build, teams should budget an additional $5K–$25K per month for ongoing maintenance and roughly $20K annually for hosting.

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ProgrammingHacker News ·

Cekura, YC F24 Startup, Hiring Forward Deployed Engineer in US

Cekura, an AI startup backed by Y Combinator's F24 batch, has posted an open position for a Forward Deployed Engineer based in the United States. The job listing was shared on Y Combinator's official company jobs board. The role appears to be focused on hands-on technical deployment work, a common function at early-stage AI companies. The posting attracted no comments or upvotes on Hacker News at the time of publication.

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WorldBBC World ·

Spanish Police Fire Warning Shots While Relocating Migrants in Ceuta

Spanish police launched an operation on Friday to move migrants away from beaches in the enclave of Ceuta. Officers reportedly fired warning shots into the air as they worked to manage large crowds. The situation became tense as migrants jostled to secure places at a designated tented accommodation site. The operation reflects ongoing pressure on Ceuta, a Spanish territory bordering Morocco that has long been a key entry point for migrants crossing into Europe.

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IndiaTimes of India ·

Six-month-old mauled by escaped pit bull in Sonipat, rushed to PGIMS Rohtak

A six-month-old infant was critically injured after a pet pit bull escaped from a neighboring home in Sonipat and attacked him. The dog grabbed the baby by the jaw and dragged him before bystanders stepped in to stop the assault. The incident was recorded on CCTV footage, highlighting the severity of the attack. The child required more than twenty stitches and was subsequently transferred to PGIMS Rohtak for specialized medical care. Authorities are yet to receive a formal complaint regarding the incident.

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IndiaTimes of India ·

13-year-old Long Island prodigy enrolls in NYU master's program after early high school grad

Joe Petraro-Hyppolite, a 13-year-old from Long Island, New York, has enrolled in a master's program at New York University, years before most peers finish high school. The teenager, who has a reported IQ of 168, graduated high school at the age of 11 and achieved a near-perfect SAT score of 1590 at just 10 years old. Joe is pursuing studies across sports management, kinesiology, and biology at the university level. He is expected to complete his undergraduate degree by next spring before advancing further in his academic journey.

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WorldBBC World ·

Holdout juror in Lindsay Clancy trial speaks out on deliberate killing verdict

A holdout juror in the Lindsay Clancy case has spoken publicly for the first time about his decision to refuse acquittal. Clancy, a Massachusetts mother, was accused of killing her children, and the juror maintained he had no doubt the act was deliberate. While other jurors moved toward acquittal, this individual stood firm in his position throughout deliberations. His public comments mark the first time he has addressed his reasoning since the high-profile trial concluded.

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IndiaTimes of India ·

Lucinda Southworth's Oceankind Has Donated Over $120M for Ocean Conservation

Lucinda Southworth, wife of Google co-founder Larry Page, runs a philanthropic organization called Oceankind dedicated to marine conservation. Since its founding in 2018, Oceankind has contributed more than $120 million toward protecting and restoring ocean ecosystems. The organization also focuses on improving the health of communities that depend on marine environments. Oceankind works to tackle major threats such as climate change and pollution through innovative approaches and policy advocacy.

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ProgrammingDEV Community ·

SoundScript Library Lets .NET Apps Generate Audio Dynamically from App State

A .NET library called SoundScript, targeting .NET 10, enables developers to generate audio procedurally from application state rather than relying on static WAV file libraries. Instead of maintaining separate audio files for every event variation, developers define musical rules — including tempo, dynamics, and motifs — that map directly to runtime conditions. For example, a warning sound's intensity can automatically scale with a severity level, or a game's background tempo can increase as a player advances through levels. The library compiles a simple text-based script describing musical intent and renders it into a WAV file on the fly. This approach reduces asset management overhead in games and interactive applications where sound needs to vary based on changing runtime data.

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ProgrammingDEV Community ·

Silent JS Bugs Skewed Months of Analytics on a Live Product Search Site

A developer running OneFindMe, a multilingual AliExpress product search engine, discovered a cluster of long-standing JavaScript bugs only after installing a session-recording tool — despite all automated checks showing green. A flawed HTML-entity escaping method in inline click handlers caused syntax errors for product titles containing apostrophes, silently breaking favourite, share, and analytics tracking on roughly a third of every results page. Because the underlying product links remained intact, no sales were directly lost, but click-through rate data collected over months was systematically undercounted, corrupting product decisions made on that data. A second bug referenced a renamed CSS class that no longer existed, rendering two buttons completely inert, a fact only made visible when session recordings showed a user clicking the same dead button five times in 26 seconds before abandoning the session. The incident highlights that passing automated checks does not confirm a working user experience, and that client-side errors which leave no server-side trace can only be reliably caught through direct page observation.

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ProgrammingDEV Community ·

SoundScript Library Lets .NET Apps Generate Audio from JSON Data

A .NET package called SoundScript enables developers to convert structured JSON data into WAV or MIDI audio files without building a dedicated audio engine. The library, version 13.0.0 targeting .NET 10, works by letting the application map its own JSON schema to SoundScript source code, which then handles compilation and rendering. Developers can link business logic variables — such as alert severity or application state — to musical parameters like dynamics and note sequences. The tool maintains a clear separation between application data and audio rendering, keeping business rules within the application layer. SoundScript is available via NuGet and is positioned for use cases where audio output needs to respond dynamically to changing application state.

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ProgrammingDEV Community ·

How to Recover Vanished Chat History in Google Antigravity IDE

Developers using Google Antigravity IDE have reported chat histories disappearing from the sidebar after updates, reinstalls, cache clears, or periods of inactivity. The data is not actually deleted but enters a dormant state on disk, as the IDE avoids loading hundreds of conversation trajectories into frontend memory simultaneously. Conversations are stored in SQLite database files under ~/.gemini/antigravity-ide/conversations/ and can be reactivated by triggering a sync event through the IDE's internal Language Server daemon. One discovered workaround involves submitting a comment via an open artifact's Review menu, which wakes the dormant conversation and restores it to the sidebar instantly. For cases without an open artifact, the article outlines two open-source tools — a VS Code extension and a standalone Python script — designed to restore conversations on demand.

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ProgrammingDEV Community ·

SoundScript Converts Text to MIDI Music Using Deterministic Rules, No AI Needed

SoundScript is a .NET library that transforms plain text into MIDI music files through a fixed, rule-based pipeline rather than generative AI prompts. The tool breaks input text into syllables and phonemes, maps them to musical gestures, and produces a complete musical program that always yields the same output for the same input. This deterministic approach contrasts with AI music generators, which can produce different results across runs due to probabilistic interpretation. SoundScript 13 targets .NET 10 and requires no hosted AI service, random seeds, or external prompts. The library is aimed at use cases where reproducibility matters, such as automated testing, CI/CD pipelines, procedural content generation, and research.

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ProgrammingDEV Community ·

SoundScript Lets .NET Developers Generate Reproducible Audio Test Fixtures from Code

Most development teams generate JSON, database records, and API payloads as test fixtures, but audio files are typically stored as opaque binary assets with no clear history or intent. SoundScript, a .NET library now on version 13 targeting .NET 10, lets developers define audio content in a readable text format that compiles deterministically into WAV and MIDI files. Because the same source always produces identical output, generated audio can be hashed and validated in automated regression tests just like any other build artifact. This approach makes audio changes visible and reviewable in pull requests, since a developer can read the tempo, instrument, and note definitions rather than simply seeing that a binary file changed. The pattern mirrors workflows already common in software development, such as generating API clients from schemas or documents from templates.

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ProgrammingDEV Community ·

SoundScript Library Lets C# Developers Generate MIDI and WAV from One Definition

SoundScript is a C# library targeting .NET 10 that allows developers to generate both MIDI and WAV audio files from a single high-level musical description. Rather than manually constructing MIDI events, timestamps, and velocities, developers write a compact script defining tempo, instruments, notes, and dynamics. A single call to SoundScriptEngine.Compile() produces an object that can render both file formats independently. The library is positioned as a higher-level abstraction above traditional MIDI libraries like DryWetMIDI, which remain better suited for DAWs, hardware integration, or direct MIDI manipulation. For larger projects, SoundScript also supports loading musical definitions from external .ss files, keeping audio logic separate from application code.

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