A callable intelligence directory

Capabilities agents can discover, pay for, and call.

x402 Library is a growing directory of small, purpose-built utilities. Each utility declares what it does, what it costs, what it returns, and where its conclusions stop.

OPEN DISCOVERYPAID EXECUTIONSTRUCTURED OUTPUTVISIBLE BOUNDARIES

Directory 01

Market Analysis

Independent utilities for discovering market structure, testing scenarios, and auditing signals. Strategies remain separate so agents can select only the capability they need.

02
PLANNED

Lead-Lag Analysis

market.lead-lag-analysis

Measure delayed relationships across assets, factors, events, and market states without treating correlation as causation.

Time delayCross-assetSignal context
Future independent utility
03
PLANNED

Regime Shift Checkpoint

market.regime-shift-checkpoint

Test whether a move is still event-local or has accumulated enough structural evidence to justify a regime-change hypothesis.

Regime shiftScenario branchInvalidation
Future independent utility

Agent flow

One library.
Small callable tools.

The site is the directory. Every analysis method is a separate product with its own manifest, schema, price, version, and evidence boundary.

01

Discover

Agents inspect purpose, schema, price, limits, and examples before paying.

02

Pay

A selected utility returns an x402 payment requirement for bounded execution.

03

Call

The agent retries with payment and receives a structured, machine-readable result.

04

Verify

The response preserves assumptions, evidence boundaries, and a receipt-ready execution record.

Product boundary

Useful analysis without oversized claims.

Finding ≠ Forecast

A discovered pattern can become a scenario candidate without becoming a guaranteed prediction.

ABSTAIN ≠ STOP

Weak evidence limits the conclusion; it does not erase the observation or end exploration.

Tool ≠ Platform

x402 Library hosts many independent utilities. This first project supplies only one of them.

First shelf

Market structure is difficult to see.
The first utility is being built to excavate it.

View Structural Pattern Discovery