The API Hub: Discover L402-Enabled Endpoints
Why a catalog matters
The biggest barrier to L402 adoption isn't the protocol. It's discovery. If an AI agent doesn't know an L402 endpoint exists, it can't pay for it.
The bolthub API Hub solves this with a public, searchable catalog of L402-enabled APIs. Data providers list endpoints and consumers browse for the data they need.
What you'll find
The Hub lists APIs across categories:
- •Financial data: Market prices, exchange rates, on-chain analytics
- •Weather and geo: Forecasts, geocoding, satellite imagery
- •AI and compute: Inference endpoints, embeddings, translation
- •News and content: Headlines, article archives, RSS aggregation
- •Infrastructure: DNS lookups, IP geolocation, SSL checks
Each listing shows the endpoint path, HTTP method, pricing model, and price. Everything a client or agent needs to start making paid requests.
For consumers: discover and pay
Browse the API Hub at bolthub.ai/hub. Each listing includes:
- •Pricing info: See exactly what each request costs before you commit
- •Try it live: Use the built-in playground to make a test request
- •Integration snippets: Copy-paste curl commands, Python code, or MCP configuration
No account needed to browse. Pay with any Lightning wallet when you're ready.
For providers: list and earn
Listing in the API Hub is automatic when you create endpoints on bolthub (when you enable public listing). Your API becomes discoverable to every agent and developer browsing the Hub.
To maximize visibility:
- Write clear descriptions: Explain what data your API returns and who it's for
- Add tags: Help users find your API when filtering by category
- Set competitive pricing: Check what similar APIs charge and price accordingly
- Enable free tries: Let users test one request free to build trust
Machine-readable discovery
Beyond the web interface, every listing is available via standard discovery protocols:
- •OpenAPI spec:
GET /.well-known/openapi.jsonon any tenant gateway - •L402 discovery:
GET /.well-known/l402-gateway.jsonfor machine-readable endpoint metadata - •MCP config:
GET /.well-known/mcp.jsonfor MCP client configuration
This means AI agents can programmatically discover available APIs, understand their pricing, and decide whether to pay, all without human intervention.
Growing the ecosystem
The value of the Hub grows with every API listed. More listings mean more choice for consumers, which drives more traffic to providers.
If you have an API with valuable data, list it on bolthub and reach a new audience of AI agents and Lightning-native developers.