Hyvor Post vs ZeroClick: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Hyvor Post and ZeroClick — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Hyvor Post
HYVOR (Hyvor, SARL)
Privacy-first, open-source newsletter platform built on Hyvor Relay for simple, tracker-free email publishing.
Key features
- Privacy-First Delivery: Sends newsletters without user tracking or behavioral analytics, focusing on subscriber privacy and minimal data collection.
- Built-on Hyvor Relay: Uses Hyvor Relay — an open-source SMTP-based email API — to send mail through your own infrastructure for better deliverability control and scalability.
- Rich Embeds and Link Previews: Generates link previews and rich embeds via custom parsers and oEmbed; can scrape meta tags for link cards to enrich newsletter content.
- Open-Source Architecture: Distributed under the AGPL-3.0 license with separate frontend, backend, embed, and archive components to inspect, modify, and self-host the platform.
- Developer-Friendly APIs: Provides a developer-focused stack and integration points (Hyvor Relay and internal libraries) for customizing delivery, templates, and automation workflows.
- Scalable Email Sending: Designed to integrate with infrastructure capable of sending high volumes of emails (Relay aims for millions/day) while remaining observable and manageable.
- Modular Codebase: Clear repository layout (backend, frontend, embed, archive) enabling contributors to run the app locally via the HYVOR development environment and Docker tooling.
- Privacy-Oriented Defaults: Default settings and design choices prioritize no-tracking and minimal telemetry to align with privacy-conscious publishers and organizations.
- Privacy-first newsletter delivery with no tracking
- Built on Hyvor Relay — an open-source email API that uses SMTP
- Open-source codebase licensed under AGPL-3.0
- Repository split into backend, frontend, embed, and archive components
- Supports rich embeds and link previews (embed tooling / custom parsers / oEmbed)
- Developer-focused dev workflow (./run post in hyvor/dev environment)
- Docker-friendly components (Dockerfile present in related repos)
- Designed to interoperate with a self-hosted email stack (Relay/SMTP)
Best for
- Privacy-Focused Newsletters: Independent writers or organizations sending subscriber newsletters without tracking open rates or collecting behavioral data.
- Self-Hosted Email Infrastructure: Teams that want to send newsletters using their own SMTP infrastructure and avoid third-party email providers like SendGrid or Mailgun.
- Developer Integrations and Automation: Engineering teams building automated newsletter pipelines or custom sending logic using Hyvor Relay and Post's APIs and libraries.
- Rich Content Newsletters: Publishers who want automatic link previews and rich embeds in email issues to improve engagement and presentation of linked content.
- Open-Source Deployment and Contribution: Organizations that require an AGPL-licensed codebase to audit, extend, or host internally and contribute fixes or features upstream.
- Migration from SaaS Email Providers: Businesses seeking to move away from hosted transactional/newsletter services to a self-managed stack for cost control or privacy reasons.
- Blog-to-Newsletter Workflows: Bloggers using Hyvor's ecosystem (blogs, editor, and post) to create seamless publishing workflows that convert posts into newsletter issues.
- Running privacy-compliant newsletters for communities or businesses
- Integrating a self-hosted email API (Hyvor Relay) to power newsletters
- Developers building or customizing newsletter systems using open-source code
- Deploying a newsletter platform in environments requiring data control and no tracking
- Testing email sending and handling with a self-hosted SMTP-backed API
ZeroClick
ZeroClick
Storefront and payment layer that turns any API or product into a service AI agents can discover, pay for with x402 or MPP, and use.
Key features
- Machine-Readable Storefront: Every seller gets a hosted pay URL that agents read directly to discover available services, plans, and prices without a human-facing web page.
- x402 and MPP Payment Rails: Agents pay through the x402 and MPP protocols, with settlement to the seller's connected Stripe account in either fiat or USDC.
- On-the-Spot Wallet Creation: If a buying agent arrives without a wallet, ZeroClick provisions one during the transaction instead of failing the purchase.
- Agent Identity and Verification: Every agent is given an identifier and verified before a call is signed and forwarded, and every call is logged for tracking and abuse prevention.
- Billing Guard SDKs: Seller SDKs for TypeScript, Python, Go, and Ruby implement the verify-check-allowance-serve-settle contract, with a REST walkthrough for custom integrations.
- Flexible Plan and Meter Model: Services are billed through meters and plans supporting pay-as-you-go, credits, subscription, or subscription-plus-usage, with a pre-request allowance check.
- Agent Index Registration: ZeroClick publishes seller services to the major agent indexes so buying agents can discover them without a direct integration.
- Transaction Analytics Dashboard: Transaction-level reporting on agent traffic, origin platforms and models, payment-method split across x402, MPP, USDC and fiat, and per-service conversion rates.
Best for
- API Monetization for Agents: Putting an existing data, enrichment, or generation API behind a pay URL so autonomous agents can buy calls without a human signup flow.
- Agentic Commerce Readiness: Making an existing product purchasable by shopping assistants as agent-driven traffic replaces human browsing.
- Usage-Based Metering: Charging agents per request or per output token through meters and allowances rather than fixed seats.
- Agent Traffic Analytics: Understanding which agent platforms and models are driving purchases, and which services convert best with them.
- Crypto and Fiat Settlement: Accepting USDC from wallet-native agents while still settling into a conventional Stripe account.
- Enterprise Agent Sales Governance: Running agent-facing sales with roles, permissions, pricing controls, SSO/SAML, and a per-call audit log across a team.