The Loop XXI index
Everything.
One place.
Products, tools, writing
and ways to connect.
37 links
01
Products
Tools we build and operate.
02
Tools
Try an idea. Check your work.
- Bitcoin retirement calculatorExperimentalExplore retirement assumptions. A model, not a forecast.
- L402 challenge checkerFreeInspect a Lightning payment challenge in your browser.
- Follow-up WorklistFreeFind missing owners, next actions and due dates.
- Loop DeskPreviewTurn an inquiry into a reviewed next step.
- Loop ScopeUnpaid previewCheck a specification for gaps before building.
- Agent Spend GuardrailsWorking draftDraft spending policies for Lightning agents.
03
Read & watch
Research, explanations and films.
- The journalAI, money and Bitcoin. Sources included.
- Gold rose 130-fold. Against M2, the gain was 1.66-fold.EssayResearch
- Seconds of Compute, Sats of InferenceEssayAgents & Bitcoin
- The house ran. The paycheck walked.Essay + filmAffordability
- Bitcoin’s clock is not a stopwatchEssayBitcoin
- Scarcity under pressureEssayMacro & Bitcoin
- The balance is not the buying powerEssay + filmMonetary systems
- Bitcoin guidesPractical reading on backups and device provenance.
- Test your backupGuideA guide to checking your recovery plan.
- Firmware & seed provenanceGuideUnderstand what a firmware update cannot prove.
- Journal RSSRSSFollow new essays in your feed reader.
04
Developers
Connect to Loop Gateway.
- Gateway quickstart & checksInspect models, prices and advertised payment options.
- Gateway API docsTextThe current integration guide for agents and developers.
- Gateway OpenAPIJSONThe API contract and documented responses.
- Available modelsJSONRead the live model catalog.
- Current API pricesJSONRead current usage prices in sats.
- Payment discoveryJSONRead advertised payment methods and availability.
- Product catalogJSONMachine-readable product and purchase information.
- Site guide for agentsTextPublic routes and integration pointers.
05
Connect
Follow along. Start a conversation.
06
Company
The company behind the work.
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