Meet the new listings: Tanod, Horizon Pulse and Vextorium

Tanod, Horizon Pulse and Vextorium are now listed on X402blockchains. Each offers tools that software agents can call when a task needs external information or processing. Together, they illustrate how the x402 ecosystem is expanding from payment infrastructure into usable services.

These are API seller listings. Their role is to provide a paid resource to a caller; that is different from operating a facilitator that verifies and settles payments for other services.

Tanod: practical tools for everyday agent tasks

Tanod offers HTTP and MCP tools for tasks such as turning web pages into Markdown, taking screenshots, processing PDFs and images, extracting text with OCR and checking DNS or email information. Its submitted catalogue also includes chain data and automated contract or agent-package checks.

That combination can be useful when a workflow needs to gather or transform information before producing an answer. For example, a document assistant could use an extraction tool to obtain readable text, then apply its own analysis to the result.

The approved listing covers Base mainnet. Builders should consult Tanod’s current catalogue for the method, inputs, allowance and price of a particular route. Automated scanning output should be treated as a tool result rather than a professional audit.

Official website: https://tanod.dev
HTTP catalogue: https://tanod.dev/openapi.json
MCP connection guide: https://tanod.dev/connect/

Horizon Pulse: web research and useful data checks

Horizon Pulse provides pay-per-call tools including web search, page fetching, structured extraction, screenshots and PDF-to-text conversion. Its listing also describes utilities for checking transaction status and other public data.

The reviewed HTTP payment scope covers Base and Solana. Its hosted MCP integration is documented as Base-only, so builders should check the integration path they intend to use rather than assuming identical network support everywhere.

A useful starting point is a narrowly defined task, such as extracting information from a public page or checking whether a transaction has reached the required status. Match the returned data to the application’s own requirements before placing the tool in a larger automated workflow.

Official website and buyer documentation: https://horizonpulse.dev
Documentation: https://horizonpulse.dev/llms.txt
Public repository: https://github.com/horizon-pulse/horizon-pulse

Vextorium: a broad catalogue of paid data services

Vextorium’s submitted catalogue spans on-chain information, DeFi and market data, official statistics, web utilities and developer tools. It also provides a remote MCP interface for discovering services and calling them.

Its reviewed listing covers Base and Solana payments. The payment guide documents request formats, settlement receipts and recovery considerations. Builders should use the current catalogue to select a specific route and inspect its live payment terms before authorizing a call.

For a research agent, the attraction is access to different kinds of external data through a common service interface. The quality and suitability of each returned dataset still need to be assessed for the task at hand.

Official website: https://vextorium.com
API catalogue: https://api.vextorium.com/catalog.json
Buyer guide: https://github.com/bru1noia/vextorium-mcp/blob/main/PAYMENTS.md

Explore the listings and build deliberately

Find these projects in our AI Agents & Apps directory to explore their descriptions, documentation and available payment activity. For changing metrics, consult the live project profile rather than treating this article as a current transaction report.

Start with one useful call, confirm its result and keep its settlement reference. A directory listing helps with discovery; it does not guarantee a service’s uptime, security or suitability for every task.

Explore: https://x402blockchains.com/ai-agents-apps/

Listing records:
Tanod: https://github.com/X402blockchains/x402-registry/pull/3
Horizon Pulse: https://github.com/X402blockchains/x402-registry/pull/7
Vextorium: https://github.com/X402blockchains/x402-registry/pull/9