bolthub
PricingBlogDocs
bolthub

Rail-agnostic pay-per-call for MCP tools and APIs. Agents pay per call and you keep custody. Lightning today, more rails next. Built for tool builders and AI teams.

contact@bolthub.ai

Product

All productsbolthub Pay SDKHosted platformToolClientAPI HubNode LauncherPricingFor tool buildersFor agentsCharge for your toolsDocs

Legal

Terms of ServicePrivacy PolicySecurityAcceptable Use

Resources

API HubBlogWhat is L402?L402 vs x402RSS feed

Packages

npm

@bolthub/​payTool-payment SDK@bolthub/​agentL402 payment client@bolthub/​cliCLI@bolthub/​mcp-registryRegistry MCP@bolthub/​mcp-bridgeBridge MCP@bolthub/​verifyWebhook verifier

PyPI

bolthubPython SDKbolthub-verifyPython verifier
bolthub

© 2026 Signal Tech Pty Ltd. All rights reserved.

products / api-hub

Free to browse

Where agents find tools and pay per call.

The public directory where agents and developers discover paid tools. Search it, preview prices, and pay your first call from the playground; if you sell, it's where paying buyers find you without you building a marketplace.

Browse the HubGive your agent a budget

hub / btc-intel

  • GET /v1/derivatives/cme-basis3 sats/req
  • GET /v1/market/multi_exchange3 sats/req

LIVE32 endpoints · try it in the playground

Search, tags, pricing up front

Every listing shows its endpoints and per-call prices before you pay a sat, so a buyer (human or agent) can comparison-shop.

Try before you wire it in

The playground makes a real paid call from the browser with your wallet. No signup needed to browse.

Machine-readable by default

Listings expose OpenAPI and MCP definitions, so agents can discover a tool, read its schema, and start paying per call without a human in the loop.

Selling? Listing is included.

Every hosted platform seller can opt into the Hub at no extra cost: your gateway already publishes the OpenAPI, MCP, and L402 metadata the Hub renders. It’s upside, not a dependency — your gateway URL works for your own customers the moment it’s live, and the Hub adds discovery on top. We grow it deliberately, prioritizing quality APIs over volume.

Real-world use

An agent finds its own data source

A trading agent needs derivatives data its builder never wired in. Through the Hub’s machine-readable listings it finds a market-intelligence API charging 3 sats per request, reads the schema, and starts calling within its budget. No vendor account, no API-key request email, no human in the loop; the seller just sees paid traffic arrive.

Where to go deeper

  • Browse the HubThe live directory, searchable now.
  • For agent buildersWire discovered tools into your agent with a budget.

start calling

Copy one config. Start calling.

Wire bolthub into Cursor, Claude Desktop, or your own orchestrator. Add your wallet, set a budget, and your agent can discover and call any listed tool. Building in code? Python and TypeScript SDKs call any hub API directly.

Set up your agentBrowse the hub

hub / btc-intel

  • GET /v1/derivatives/cme-basis3 sats/req
  • GET /v1/market/multi_exchange3 sats/req

LIVE32 endpoints · btc-intel.gw.bolthub.ai

browse the hub →