ΣΤΟΑ · MACHINE‑PAYABLE MARKET REASONING

The trace is the product.
And machines pay for it.

A machine-readable feed of cross-calibrated macro & crypto market reasoning. Gated behind an HTTP 402 toll — a bot hits the endpoint, autonomously pays a sub‑cent USDC nanopayment on Arc, and unlocks the feed in under 500ms.

x402 handshakearc · usdc

GET/api/v1/feeds/macro-alpha

402Payment Required · 0.005 USDC

PAYsettle · <500ms · Treasury

200feed unlocked · trace ↓

SCROLL ↓ THE PORCH WHERE MACHINES READ

01THE THESIS

It intercepts the open feed. Then it charges admission.

Quant developers already aggregate market data through the open-source feed ecosystem. Stoa is the missing middleware — a premium upstream route that wraps clean, structured market reasoning and meters it per request. No marketplace to bootstrap. No cold-start liquidity. One defensible engine, one toll.

SOURCE

The bot

Aggregates feeds via RSSHub. Wants signal, not prose.

→

UPSTREAM

Stoa route

Premium upstream wraps the Triad's synthesis into the feed.

→

402 GATE

The toll

≈$0.005 USDC. Paid autonomously on Arc via x402.

→

UNLOCK

The trace

Verifiable synthesis delivered. Settled in <500ms.

No subscription

PAY PER REQUEST, NOT PER MONTH

No API key

THE WALLET IS THE CREDENTIAL

02THE TRIAD

Three architects. One synthesis per market.

Not a prompt with three names. Three architecturally distinct, persistent-memory engines that argue, then reconcile — each a calibrated instrument of its own discipline.

ARCHITECT · CalibratorCONF —
LATEST —

ΛΟΓΟΣ

Λόγος

METACOGNITIVE CALIBRATION LAYER

Calibrator

“The Apatheia Engine”

Sits above the other two. Scores their track record and penalizes prior-wrong agents before they speak — the rigor, not the confidence.

Trust the one who has been right; discount the one who has not.

TRACES

AVG CONF

—

LATEST

—

METHOD

Verify the reasoning by hash.

Every item is canonicalized, hashed, pinned to Irys, and anchored on Arc. To a skeptical quant this is the whole trust property: the synthesis isn't a newsletter you take on faith — it's data infrastructure you can check.

01 · CANONICALIZE

Deterministic serialization. Same reasoning, same bytes, every time.

02 · SHA‑256

An immutable fingerprint of the exact synthesis.

03 · IRYS PIN

Permanently stored, content-addressed, retrievable forever.

04 · ARC ANCHOR

The hash is committed on-chain. Now it's tamper-evident.

GET /api/v1/feeds/macro-alpha · 200 OKapplication/json

{
  "market": ,
  : ,
  : 
    : ,
    : ,
    : 
  ,
  : 
    : ,
    : ,
    :

THE PRODUCT ↗

Walk the full app flow

Six screens, locked endpoint to verified trace — the entire loop a bot runs.

THE PROOF ↗

Verify any trace

Every published synthesis, hashed and anchored. Open one and check it yourself.