BackTrackCo
Tenjin builds infrastructure that lets coding agents discover and use the right external tools at the moment they are needed, without users installing and managing a separate API key or MCP server for every tool. Its broader platform also enables humans and agents to publish, discover, buy, and sell reusable knowledge using x402 micropayments and USDC on Base.
At a Glance
- Claude Code and AI coding-agent users
- Developers and teams needing occasional current research or specialist data tools
- Researchers and technical writers publishing durable, evidence-backed knowledge
- Human and machine readers seeking pay-per-use access to individual knowledge pieces
- +1 more
AI Tools by BackTrackCo
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Tenjin
AI Tool Router for Claude Code
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Latest News
tenjin-agent repository recorded an alpha release automation commit; the public repository showed 193 commits.
Tenjin announced that its Jev-based x402 tool router for Claude Code was live for everyone to try.
Show HN launch: Tenjin introduced a Jev-based x402 tool router for Claude Code, with a curated library such as Exa, Firecrawl, and Context7 and wallet-paid calls.
Show HN launch: Tenjin introduced a marketplace where humans and agents buy and sell markdown files/content per piece using x402 and stablecoins.
Products & Services
An open-source CLI and Claude Code integration that watches prompts, web searches, page fetches, and subagent tasks, then suggests a curated paid or free capability when it fits. It routes calls through x402, using a local wallet holding USDC on Base, with configurable per-call and daily spending limits.
An x402-native publishing platform on Base. Publishers post markdown knowledge pieces, optionally put the body behind a paywall, and receive 90% of each sale; buyers pay per piece and can reread purchased content.
A remote Streamable HTTP MCP server and keyless HTTP API for searching, reading, buying, publishing, and reporting outcomes for Tenjin knowledge resources; the official agent guide also documents x402 router discovery and locally signed publishing flows.
Market Position
Tenjin positions itself against the friction of installing and configuring many MCP servers, API keys, and permanent integrations: it is a task-aware router with a curated catalog and pay-per-use x402 settlement. In knowledge publishing, it differs from subscription paywalls by selling individual markdown pieces that buyers keep, and it is designed for both human HTML readers and agents consuming machine-payable resources. Comparable alternatives include manually configured MCP/API integrations and subscription-based technical-content platforms, but the supplied sources do not identify named direct competitors.
Leadership
Founders
Ali
Identified in the Tenjin launch post as one of the two creators; the available launch materials do not state a prior employer or role. The associated GitHub/Hacker News account is AliAbdoli.
Vrajang
Identified in the Tenjin launch post as the other creator; the available launch materials do not state a prior employer or role. The earlier Tenjin marketplace announcement was posted by the account vraspar.
Founding Story
The founders first described Tenjin as a response to subscription paywalls and the difficulty agents have accessing useful research: users should be able to pay for and keep a single piece of content rather than subscribe. They then extended the concept into a Claude Code tool router, intended to intervene when a curated external tool would materially help and pay that provider through x402.
Business Model
Revenue Model
The tool router is free to install and says routing itself is free; the user's wallet pays the selected provider's quoted x402 price. For the knowledge marketplace, publishers set prices and receive 90% of each sale while Tenjin retains 10% to operate the platform.
Pricing Tiers
The router proposes a capability at no charge; the user pays the provider only when a paid lookup is actually made.
Search results with page content.
Reads one exact page as clean text.
Live quotes for coins.
Math, unit conversions, science, and data questions.
Checks whether an email address is real and deliverable.
Professional profile from a name or email.
Company size, industry, funding, and social information from a domain or name.
Target Markets
- Claude Code and AI coding-agent users
- Developers and teams needing occasional current research or specialist data tools
- Researchers and technical writers publishing durable, evidence-backed knowledge
- Human and machine readers seeking pay-per-use access to individual knowledge pieces
- Providers of x402-enabled APIs and agent capabilities
- Giving coding agents current library and framework documentation
- On-demand web research and page extraction when native search or fetch is insufficient
- Live cryptocurrency price lookup, computation, email verification, person lookup, and company enrichment
- Pay-per-piece access to durable technical or operational knowledge without a subscription
- Publishing reusable research or agent-generated findings for other humans and agents to buy
- Delegating coding subagents while allowing the router to offer an appropriate paid capability