## Model Context Protocol

This documentation is also served over MCP at https://lunora.sh/mcp — an
unauthenticated Streamable HTTP endpoint exposing `lunora_search_docs`,
`lunora_get_doc` and `lunora_list_docs`. Prefer it over crawling these pages:
search returns the relevant sections directly.

    claude mcp add --transport http lunora-docs https://lunora.sh/mcp

Or run `lunora mcp install` inside a project to wire it into your editor
alongside that project's own Lunora server.

# Lunora

- [Overview](/docs/overview): The Convex-style real-time backend that runs on your own Cloudflare account — typed end to end, live by default, ~$0 at idle.
- [Getting started](/docs/getting-started): Scaffold a Lunora app and run the dev loop in under a minute.
- [Quickstarts](/docs/quickstarts): Every starting point Lunora scaffolds — pick your framework, run one command, and get a live backend wired to it.

- **Concepts**
- [Schema](/docs/concepts/schema): Declarative tables, validators, indexes and sharding.
- [Validation](/docs/concepts/validation): The v.* validators that type your columns and parse query / mutation / action inputs and outputs end to end.
- [Data types](/docs/concepts/data-types): The value types a Lunora document can hold, how each is stored, and which ones need the wire codec to survive JSON.
- [Document IDs](/docs/concepts/document-ids): Every row carries an _id and a _creationTime — how they are minted, how v.id types a reference, and what an id does and does not guarantee.
- [Relations](/docs/concepts/relations): Modeling many-to-one and one-to-many relationships with the one / many relation descriptors, foreign-key columns and indexed reads.
- [Constraints](/docs/concepts/constraints): Unique, non-null and foreign-key integrity declared on the schema and enforced at write time.
- [Queries & mutations](/docs/concepts/queries-mutations): query / mutation / action — what each is for and how ctx is shaped.
- [Function context](/docs/concepts/function-context): The ctx object passed to every query, mutation, and action — and what each kind is allowed to do with it.
- [Real-time](/docs/concepts/realtime): How subscriptions, deltas, and hibernation fit together.
- [Offline-first](/docs/concepts/offline-first): Persist reads and writes to disk so the app boots, renders, and accepts edits with no network.
- [Local-first sync](/docs/concepts/local-first): Shapes, the poke diff protocol, and custom mutators — the Zero-class sync engine.

- **Functions**
- [Actions](/docs/concepts/actions): Non-deterministic functions for external APIs and side effects — the action builder and its ActionCtx.
- [Internal functions](/docs/concepts/internal-functions): internalQuery / internalMutation / internalAction — server-only functions never exposed to the client.
- [HTTP endpoints](/docs/concepts/http-endpoints): Public HTTP routes with httpAction and the Hono-based httpRouter.
- [Public REST API](/docs/concepts/rest-api): Publish a query, mutation, or action as a plain REST endpoint with .expose({ rest: true }) — default-closed, routed through the procedure so auth, RLS, and validators still apply, and described by the generated OpenAPI.
- [Server-side & non-reactive clients](/docs/concepts/server-clients): Calling a Lunora deployment without a live subscription — from SSR loaders, scripts, other languages, or plain HTTP.
- [Caching](/docs/concepts/caching): Edge caching with Cloudflare Workers Cache — declarative headers on HTTP routes and programmatic cache purging from actions.
- [Middleware](/docs/concepts/middleware): Compose cross-cutting concerns — auth checks, rate limiting, logging — and augment ctx for downstream handlers.
- [Components](/docs/concepts/components): Package backend features — tables, functions, and context — as an installable unit that cannot collide with the app that installs it.
- [Scheduling](/docs/concepts/scheduling): Defer follow-up work with ctx.scheduler.runAfter / runAt, and run recurring jobs via Cron Triggers.
- [Push notifications](/docs/concepts/notifications): Configure defineNotify in lunora/notify.ts for Web Push + FCM, register browser subscriptions, and send via ctx.notify / ctx.push from an action.
- [Error handling](/docs/concepts/error-handling): Throwing inside handlers, how errors travel to the client, and reading error state without losing optimistic safety.
- [Runtime & bundling](/docs/concepts/runtime): Everything runs on the Workers runtime — what that means for Node APIs, dependencies, and the 10 MB bundle you have to fit into.

- **Data**
- [Indexes](/docs/concepts/indexes): Declare B-tree indexes on tables and query them with withIndex — every filtered read should hit one.
- [Filtering](/docs/concepts/filtering): .filter() is a JavaScript predicate applied after rows are loaded — when to use it, and when to reach for an index instead.
- [Pagination](/docs/concepts/pagination): Keyset pagination with .paginate(options) — page through a query and build an infinite list on the client.
- [Full-text search](/docs/concepts/search): Declare a search index on a table and run relevance-ordered full-text queries.
- [Vector search](/docs/concepts/vector-search): Typed Vectorize indexes on ctx.vectors — automatic write sync, similarity search, and RAG with embeddings.
- [Geospatial](/docs/concepts/geospatial): Store lat/lng points with v.geoPoint, index them with .geoIndex, and answer "places near me" and bounding-box reads with withGeoIndex.
- [File storage](/docs/concepts/file-storage): Typed R2 buckets exposed as ctx.storage — uploading, serving via signed URLs, and deleting files from your functions.
- [System tables](/docs/concepts/system-tables): Read pending scheduled jobs and stored file metadata through ctx.db.system — a read-only, eventually consistent view outside the mutation snapshot.
- [OCC & atomicity](/docs/concepts/occ): Why mutations in one shard are serialized rather than retried, where optimistic-concurrency conflicts still arise, and what atomicity means across shards.
- [Sharding](/docs/concepts/sharding): Default __root__ DO, opt-in .shardBy(), and .global() escape hatch.
- [Data residency](/docs/concepts/data-residency): Pin Durable Objects to a Cloudflare jurisdiction with .jurisdiction(), and the export→import runbook for moving regions.
- [Read replicas & placement](/docs/concepts/read-replicas): Serve one-shot queries from a copy of the shard in the caller's region, pin where a shard is created, and terminate sockets near the client.
- [TTL & auto-expiry](/docs/concepts/ttl): Declare a table-level .ttl() so a DO alarm sweep auto-deletes expired rows — sessions, OTPs, and other ephemeral data.
- [Migrations](/docs/concepts/migrations): Schema-change SQL for global tables and online, resumable data migrations.
- [Backups, export & import](/docs/concepts/backups): Snapshot a deployment, recover a shard to any moment in the last 30 days, and move data in and out as NDJSON.

- **Auth & security**
- [Adopt in an existing app](/docs/concepts/adopt-in-an-existing-app): Add Lunora to a working product that already has its own auth, Worker, and data layer — without rewriting either.
- [Authentication](/docs/concepts/authentication): How ctx.auth threads the signed-in user through queries, mutations, and actions — and feeds row-level security.
- [Auth UI](/docs/concepts/auth-ui): Copy-in sign-in, settings, and organization screens for React, Vue, Svelte, Solid, and Angular — the code lands in your project and you own it.
- [Row-level security](/docs/concepts/rls): Server-side authorization that decides which rows a procedure can read or write.
- [Data masking](/docs/concepts/masking): Column-level redaction on the read path — the companion to row-level security.
- [Security](/docs/concepts/security): Lunora's secure-by-default posture — the protections you get for free, how to opt out, and the advisor lints that catch the gaps.

- **Frameworks**
- [Bring your framework](/docs/frameworks/bring-your-framework): Compose any meta-framework's SSR with Lunora realtime in one Cloudflare Worker.
- [React](/docs/frameworks/react): Use Lunora with React — a provider, live useQuery/useMutation hooks, and the SSR-seed → live reactive-loader handoff.
- [Next.js](/docs/frameworks/nextjs): Run Lunora alongside Next.js on Cloudflare with the two-worker split — RSC loaders that hydrate into live subscriptions.
- [React Native / Expo](/docs/frameworks/react-native): Use Lunora in a React Native / Expo app — the same live hooks, plus an AsyncStorage-backed client and a better-auth Expo bridge.
- [Vue](/docs/frameworks/vue): Use Lunora with Vue 3 — a client plugin, live useQuery/useMutation composables, and the SSR-seed → live reactive-loader handoff.
- [Solid](/docs/frameworks/solid): Use Lunora with SolidJS — a provider, live createQuery/createMutation primitives, and the SSR-seed → live reactive-loader handoff.
- [Svelte](/docs/frameworks/svelte): Use Lunora with Svelte 5 / SvelteKit — context-provided client, live query/mutation stores, and the SSR-seed → live reactive-loader handoff.
- [Angular](/docs/frameworks/angular): Use Lunora with Angular — provideLunora in your app config, signal-based liveQuery, imperative mutate, and a connectionStatus signal.
- [Astro](/docs/frameworks/astro): Compose Astro's @astrojs/cloudflare worker with Lunora realtime, plus reactive-loader server helpers for .astro frontmatter.
- [Nuxt](/docs/frameworks/nuxt): Run Lunora and Nuxt as one Cloudflare Worker — the @lunora/nuxt module mounts /_lunora/** into Nitro, plus reactive-loader server helpers.
- [Reactive loaders](/docs/frameworks/reactive-loaders): Your loaders are live — SSR data that hydrates into a real-time subscription with no flash.
- [Deploy your framework](/docs/frameworks/deploy): One worker, one deploy — how a composed Lunora + meta-framework app ships to Cloudflare.
- [Manual end-to-end verification](/docs/frameworks/verify-live-loaders): How to actually prove live loaders work — scaffold, SSR-curl the preloaded value, two-tab live update.

- **Tutorial**
- [Build a real-time chat app in 15 minutes](/docs/tutorial/realtime-chat): End-to-end Lunora walkthrough — schema, query, mutation, subscription, React, sharding.
- [Tutorial: scaling the chat app](/docs/tutorial/scaling): Take the chat app from one Durable Object to many — shard by channel, put identities in a global table, and keep cross-shard reads off the hot path.

- **Migrating**
- [Migrating from Convex](/docs/migrating/from-convex): Side-by-side mapping — schema, queries, mutations, actions, React hooks.
- [Migrating from a Convex toolkit](/docs/migrating/from-a-convex-toolkit): The second translation step a Drizzle-style schema DSL and a tRPC-style procedure builder add on top of the raw Convex mapping.
- [Migrating from Supabase](/docs/migrating/from-supabase): Side-by-side mapping — Postgres tables, RLS, Edge Functions, Auth, Storage, and Realtime.
- [Migrating from Firebase](/docs/migrating/from-firebase): Side-by-side mapping — Firestore, Cloud Functions, Auth, Storage, and real-time listeners.
- [Upgrading from alpha to 1.0](/docs/migrating/from-alpha): How a 1.0.0-alpha.* app moves to stable — dependency bumps plus every breaking change already landed on the road to 1.0.

- **Tooling**
- [Generated code](/docs/concepts/generated-code): What @lunora/codegen emits from your schema.ts, and how api / Id / Doc keep server and client in sync.
- [TypeScript](/docs/concepts/typescript): Getting the most out of Lunora's end-to-end types — where types come from, what to annotate, and what to let inference do.
- [Environment variables](/docs/concepts/environment-variables): Configure secrets and vars — .dev.vars locally, wrangler secrets in production, env bindings inside functions.
- [Testing](/docs/concepts/testing): Unit-test queries, mutations, and actions in memory with lunoraTest — no worker, no network.
- [Debugging](/docs/concepts/debugging): The tools to reach for when something is broken — doctor, the error overlay, ctx.log, the Studio, insights, and live logs.
- [Advisors](/docs/concepts/advisors): Splinter-style lints that catch schema, performance, and security problems — many before you deploy.
- [Authoring registry items](/docs/concepts/registry-items): Package a reusable capability — schema, functions, bindings and env vars — as a registry item others install with one command.
- [AI coding agents](/docs/concepts/ai-tooling): Teach Claude Code, Cursor, and Copilot how to use Lunora — agent skills, agent-aware dev mode, the docs server, and the MCP server.
- [Best practices](/docs/concepts/best-practices): The opinionated idioms that keep a Lunora app fast, safe, and reactive.

- **Operations**
- [Deployment](/docs/deployment): Wrangler bindings, secrets, and the deploy flow.
- [Monorepos and external IaC](/docs/concepts/monorepos-and-iac): Running the Lunora worker as one node in a larger dev graph, deploying it from Terraform/Pulumi/Alchemy, and consuming its generated API from a sibling package.
- [Environments & releases](/docs/concepts/environments): Running staging next to production, shipping a preview per pull request, and rolling traffic back when something goes wrong.
- [Production checklist](/docs/production-checklist): Everything to verify before a Lunora app takes real traffic — bindings, secrets, admin tokens, rate limits, RLS, migrations, observability.
- [Observability](/docs/concepts/observability): Ship Lunora's logs, traces, and metrics to any OTLP collector — the otlpSink worker option, ctx.log/ctx.trace/ctx.metrics, the zero-config container exporter, and the one wire contract they share.
- [Architecture](/docs/architecture): The full picture — topology, request lifecycle, the data tiers, the consistency model, and the design decisions behind them.
- [Design boundaries](/docs/non-goals): The things Lunora deliberately does not do — each with the reason it's a boundary and the escape hatch when you need past it.
- [Limits](/docs/limits): Cloudflare ceilings you should keep in your head.
- [Versioning & stability](/docs/versioning): What SemVer means for Lunora packages — release channels, stability tiers, and the experimental surface.

- **Lunora Cloud**
- [Monitoring](/docs/cloud/monitoring): The Lunora cloud is a managed OpenTelemetry backend + control plane — deploy to it and your traces, logs, metrics, and AI generations flow in automatically, with a Traces waterfall, Issues, and Logs to read them.

- **Reference**
- [Errors & warnings reference](/docs/errors): Every well-known Lunora error code — its HTTP status, what it means, and what to do about it.
- [Wire protocol](/docs/concepts/wire-protocol): The language-independent Lunora client↔server wire protocol and the golden fixtures every SDK is tested against.
- [Non-JS SDKs](/docs/concepts/non-js-sdks): Generate a typed, self-contained Lunora client for Python, Go, Ruby, Rust, Swift, Java, Kotlin or Dart/Flutter — vendored into your project and pinned to your CLI version.
- Packages
  - [Package Directory](/docs/packages): Browse the Lunora package ecosystem — the server runtime, validators, client SDK, framework adapters, and opt-in add-ons, organized by category.

  - **Core Runtime**
  - lunora
    - [lunora](/docs/packages/lunorash): The Lunora umbrella package — one install for the server authoring API, worker runtime, Durable Objects, and the lunora CLI, exposed through lunorash/* subpaths.
  - Server
    - [@lunora/server](/docs/packages/server): Authoring API — defineSchema, query, mutation, action, validators.
  - Values
    - [@lunora/values](/docs/packages/values): The validator runtime — v.*, Validator, Infer, Id, ValidationError, and JSON Schema export.
  - Runtime
    - [@lunora/runtime](/docs/packages/runtime): The Worker entrypoint — createWorker, RPC envelope, shard routing.
  - Do
    - [@lunora/do](/docs/packages/do): The Durable Object base classes — ShardDO and SessionDO.
  - D1
    - [@lunora/d1](/docs/packages/d1): D1 Sessions API client + migration runner for global tables.
  - Errors
    - [@lunora/errors](/docs/packages/errors): The unified error layer — LunoraError, the error catalog, isLunoraError, invariant/unreachable, and the CLI renderer.
  - Fingerprint
    - [@lunora/fingerprint](/docs/packages/fingerprint): Zero-dependency error fingerprinting — one stable grouping hash that collapses noisy errors into Issues for Studio and the Cloud.
  - Sql Store
    - [@lunora/sql-store](/docs/packages/sql-store): Internal dialect-parameterized SQL store core behind the .global() table backends — depend on @lunora/d1 or @lunora/hyperdrive, not this.

  - **Platform Hosts**
  - Platform
    - [@lunora/platform](/docs/packages/platform): The host contracts every Lunora target implements — ShardHost, SocketHost, ShardDirectory, ShardKvStore, SchedulerHost — plus the capability matrix codegen reads.
  - Platform Cloudflare
    - [@lunora/platform-cloudflare](/docs/packages/platform-cloudflare): The Cloudflare implementation of the @lunora/platform host contracts.
  - Shard Engine
    - [@lunora/shard-engine](/docs/packages/shard-engine): The host-neutral reactive engine — everything a shard does that isn't provider-specific.
  - Platform Node
    - [@lunora/platform-node](/docs/packages/platform-node): The Node host for the @lunora/platform contracts — experimental, no lunora dev --target node yet, and no SemVer promise until it graduates.

  - **Observability**
  - Observability
    - [@lunora/observability](/docs/packages/observability): Host-neutral telemetry — logs, metrics, traces, request logs, and issue grouping.

  - **Client & UI**
  - Client
    - [@lunora/client](/docs/packages/client): Framework-agnostic browser/edge client.
  - React
    - [@lunora/react](/docs/packages/react): React 18+/19 hooks built on @lunora/client, with React Server Component data loading.
  - React Native
    - [@lunora/react-native](/docs/packages/react-native): React Native / Expo bindings for Lunora — the @lunora/react hooks plus an AsyncStorage-backed client factory and a better-auth Expo bridge.
  - Vue
    - [@lunora/vue](/docs/packages/vue): Vue 3 composables built on @lunora/client — live queries, optimistic mutations, and an SSR hydration handoff.
  - Solid
    - [@lunora/solid](/docs/packages/solid): SolidJS bindings built on @lunora/client — live query signals, optimistic mutations, and an SSR hydration handoff.
  - Svelte
    - [@lunora/svelte](/docs/packages/svelte): Svelte 5 bindings built on @lunora/client — live query stores, optimistic mutations, and an SSR hydration handoff.
  - Angular
    - [@lunora/angular](/docs/packages/angular): Angular reactive adapter for Lunora — signal-based live queries and mutations.
  - Nuxt
    - [@lunora/nuxt](/docs/packages/nuxt): Nuxt module: single-worker composition (mounts /_lunora/* into Nitro) plus reactive-loader server helpers.
  - Db
    - [@lunora/db](/docs/packages/db): Optimistic, offline-first client data layer on TanStack DB.
  - Studio
    - [@lunora/studio](/docs/packages/studio): The Lunora Studio — a local admin console for your schema, data, functions, logs, and advisors.
  - Astro
    - [@lunora/astro](/docs/packages/astro): Astro integration: single-worker composition plus reactive-loader server helpers.

  - **Build & Tooling**
  - Vite
    - [@lunora/vite](/docs/packages/vite): The recommended dev-time experience — codegen, HMR, overlay.

  - **Codegen**
  - Codegen
    - [@lunora/codegen](/docs/packages/codegen): Emits _generated/{api,server,dataModel}.ts from your schema.ts.

  - **CLI**
  - Cli
    - [@lunora/cli](/docs/packages/cli): The standalone `lunora` binary — scaffold, codegen, deploy.

  - **Dev Tools**
  - Config
    - [@lunora/config](/docs/packages/config): Internal shared CLI + Vite config layer: wrangler.jsonc validation, binding inference, and .dev.vars scaffolding.
  - Testing
    - [@lunora/testing](/docs/packages/testing): In-memory harness for queries, mutations, and actions, plus E2E mail-catcher helpers.

  - **Advisor**
  - Advisor
    - [@lunora/advisor](/docs/packages/advisor): Schema and query lints — splinter-style advisors that surface in the Studio Advisors view, most of them at codegen time before you ship.

  - **Add-ons**
  - @lunora/auth
    - [@lunora/auth](/docs/packages/auth): A thin better-auth wrapper for Lunora — email/password, OAuth, plugins, D1-backed.
    - [@lunora/auth plugins](/docs/packages/auth/plugins): Org, admin, and other better-auth plugins surfaced as first-class Lunora middleware.
  - Mail
    - [@lunora/mail](/docs/packages/mail): Transactional email for Lunora — Cloudflare Email Workers or Resend, React templates, queue-backed sends.
  - Storage
    - [@lunora/storage](/docs/packages/storage): R2-backed object storage with worker-signed and S3 presigned URLs.
  - Scheduler
    - [@lunora/scheduler](/docs/packages/scheduler): Durable Object-backed scheduling for Lunora — runAfter/runAt, code-first cron jobs, and bounded-concurrency workpools.
  - Queue
    - [@lunora/queue](/docs/packages/queue): Cloudflare Queues for Lunora — defineQueue producers, a generated queue() push consumer (or HTTP pull), and the typed ctx.queues surface.
  - Container
    - [@lunora/container](/docs/packages/container): Deploy Docker containers alongside your Lunora app, called from actions over ctx.containers.
  - Agent
    - [@lunora/agent](/docs/packages/agent): Durable AI agents — defineAgent compiles a replay-safe tool-loop onto Cloudflare Workflows with live thread subscriptions.
  - Ai
    - [@lunora/ai](/docs/packages/ai): Workers AI inference from your functions, provider-agnostic, Workers AI by default.
  - Bindings
    - [@lunora/bindings](/docs/packages/bindings): The lightweight Cloudflare binding helpers for Lunora in one install — ctx.kv, ctx.images, ctx.analytics, ctx.pipelines, ctx.vectors, ctx.r2sql — with per-binding subpaths and tree-shaking.
  - Browser
    - [@lunora/browser](/docs/packages/browser): Cloudflare Browser Rendering for Lunora — ctx.browser (action-only) for headless screenshots, PDFs, HTML scraping, and arbitrary page evaluation.
  - Cloudflare Access
    - [@lunora/cloudflare-access](/docs/packages/cloudflare-access): Cloudflare Access (Zero Trust) identity for Lunora — feed the verified Access identity into ctx.auth and RLS via a resolveIdentity adapter, from a Worker-scoped Access policy or a hostname-scoped application's Cf-Access-Jwt-Assertion JWT.
  - Flags
    - [@lunora/flags](/docs/packages/flags): OpenFeature-based feature flags for Lunora — ctx.flags, useFlag, and a first-class Cloudflare Flagship provider with any OpenFeature provider pluggable.
  - Hyperdrive
    - [@lunora/hyperdrive](/docs/packages/hyperdrive): Bring-your-own Postgres/MySQL via Cloudflare Hyperdrive — an action-only ctx.sql, or a reactive .global() backend.
  - Mcp
    - [@lunora/mcp](/docs/packages/mcp): Model Context Protocol servers for Lunora — one exposing a deployment to AI agents, one exposing the framework's documentation.
  - Notify
    - [@lunora/notify](/docs/packages/notify): Multi-channel notifications — ctx.notify / ctx.push over @visulima/notification, with edge-safe Web Push and FCM.
  - @lunora/payment
    - [@lunora/payment](/docs/packages/payment): Provider-agnostic payments for Lunora — Stripe/Polar/Autumn/Dodo/Creem adapters, webhook sync, and a payment/subscription state machine.
    - [@lunora/payment — Stripe](/docs/packages/payment/stripe): End-to-end tutorial for wiring the Stripe adapter into ctx.payments — checkout, subscriptions, entitlements, metered usage, refunds, and verified webhooks.
    - [@lunora/payment — Polar](/docs/packages/payment/polar): Merchant-of-Record payments on Lunora with Polar — checkout, subscriptions, entitlements, usage metering, and Standard-Webhooks sync.
    - [@lunora/payment — Autumn](/docs/packages/payment/autumn): End-to-end tutorial for wiring the Autumn adapter into ctx.payments — attach a product, check/track features Autumn owns, verify Svix webhooks, and reconcile.
    - [@lunora/payment — Dodo Payments](/docs/packages/payment/dodopayments): Merchant-of-Record payments on Lunora with Dodo Payments — checkout, subscriptions, first-class refunds, usage metering, and Standard-Webhooks sync.
    - [@lunora/payment — Creem](/docs/packages/payment/creem): Accept payments and subscriptions through Creem — an EU-friendly, product-based Merchant-of-Record — with hosted checkout, a billing portal, and verified webhooks synced through Lunora's payment state machine.
  - Ratelimit
    - [@lunora/ratelimit](/docs/packages/ratelimit): Token-bucket, fixed-window, and sliding-window rate limiting as procedure middleware.
  - Replica
    - [@lunora/replica](/docs/packages/replica): Local-first replica runtime for Lunora — EventEmitter, subscriptions, snapshot DO, and replay.
    - [@lunora/replica — Getting started](/docs/packages/replica/getting-started): Build an offline-capable todo app with the local SQLite mirror and EventsSync.
    - Guides
      - [Custom SQLite adapters](/docs/packages/replica/guides/custom-adapter): Implement SqliteAdapter for any SQLite runtime (React Native, bun:sqlite, expo-sqlite, etc.).
  - Seed
    - [@lunora/seed](/docs/packages/seed): Deterministic, schema-driven seeding: realistic fake data generated from defineSchema.
  - Workflow
    - [@lunora/workflow](/docs/packages/workflow): Durable, multi-step execution that replays deterministically — built on Cloudflare Workflows.

  - **Web3**
  - X402
    - [@lunora/x402](/docs/packages/x402): Agentic payments over the x402 protocol — charge agents per request (charge rail) and let your agents pay 402-gated resources (pay rail).