13f Deltas

Tracks what an institutional manager bought and sold each quarter by diffing their 13F filings, e.g.

Overview

Tracks what an institutional manager bought and sold each quarter by diffing their 13F filings, e.g. what did Buffett buy this quarter. Diffs the two most recent 13F-HR filings for a manager (by CIK) and returns added (new positions), exited (sold completely), increased (size up), and reduced (size down) buckets with per-position share deltas, dollar deltas, and pct change. Strictly SEC-public 13F-HR data from EDGAR. Use it as a 13F deltas API, institutional holdings change tracker, hedge-fund quarterly trade detector, 13F diff, or a Berkshire + Bridgewater + Citadel + Renaissance position-change feed.

Endpoint

Method	Endpoint	Price	Description
POST	/v1/marketplace/api/13f-deltas	$0.0575	Invoke 13f Deltas (General) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i -X POST https://api.jarvisclaw.ai/v1/marketplace/api/13f-deltas \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/13f-deltas \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'

Open in the marketplace