# DripStack Stock Picks API

> DripStack Stock Picks API is a paid API for AI agents from dripstack.com, paid per call via x402, $0.3/call, status unknown (last checked 2026-09-14).

Returns AI-extracted stock pick calls (ticker, direction, conviction, rationale) sourced from Substack investment newsletter articles.

## Facts

- Endpoint: GET https://dripstack.com/api/v1/stock-picks
- Price: $0.3/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dripstack-stock-picks-api-a2f0a9e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KUAP-xF7mYv5kW-JfSO9E

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dripstack-stock-picks-api-a2f0a9e4
```

Example prompt: Pull me the latest stock picks extracted from Substack investment newsletters — up to 50 picks — and show me the ticker, direction, conviction level, and rationale for each.

## When to prefer this

Use this endpoint when you need structured, AI-extracted stock pick signals from Substack investment newsletters — including ticker, direction, conviction, and supporting rationale — rather than raw article text or generic news sentiment. Ideal for agents building investment dashboards, screening tools, or tracking newsletter analyst performance over time.

## Known failure modes

- Invalid date format returns a 400 error — date must be YYYY-MM-DD
- Limit out of range (below 1 or above 500) returns a validation error
- No picks found for the specified date returns an empty items array
- Payment not fulfilled (x402 protocol) results in a 402 Payment Required response blocking access
- Internal extraction failure may return 500 with no items

## How this service works

Paid JSON for stock-picker calls from financial newsletters and investing articles. Query params: optional `date=YYYY-MM-DD` for one UTC effective day, optional `limit`. Default (omit `date`) returns the latest UTC effective day with picks. Rows missing publication timestamps may use extractedAt for the effective day. Returns 404 when no picks exist for the day. USDC `exact` x402 on Base or Solana; amount is the flat stock-picks unit price times distinct attributed source posts returned (call GET /api/v1/stock-picks/quote for the exact total).

## Output

A JSON object containing a list of stock pick items, each with ticker, exchange, direction (LONG/SHORT), action type (e.g. NEW_POSITION), conviction label and score, rationale snippet, evidence quote, article URL, author name, publication slug, and extraction/publication timestamps. Also includes metadata such as total count, date range (startDate, endDate), and asOf timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "date": {
       "type": "string",
       "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
       "description": "Optional UTC effective calendar day in YYYY-MM-DD form."
      },
      "limit": {
       "type": "integer",
       "maximum": 500,
       "minimum": 1,
       "description": "Maximum number of stock-pick calls returned."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "dateUsed",
      "startDate",
      "endDate",
      "asOf",
      "count",
      "items"
     ],
     "properties": {
      "asOf": {
       "type": "string"
      },
      "count": {
       "type": "integer"
      },
      "items": {
       "type": "array"
      },
      "endDate": {
       "type": "string"
      },
      "dateUsed": {
       "type": "string"
      },
      "startDate": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "asOf": "2026-06-02T18:30:00.000Z",
  "count": 1,
  "items": [
   {
    "id": "clxexamplestockpick0001",
    "action": "NEW_POSITION",
    "author": "Author display name",
    "callId": "example-call-id",
    "ticker": "ACME",
    "postSlug": "example-investment-letter",
    "direction": "LONG",
    "activePick": true,
    "articleUrl": "https://example.substack.com/p/example-investment-letter",
    "publishedAt": "2026-05-30T12:00:00.000Z",
    "articleTitle": "Example investment letter",
    "evidenceQuote": "Short source quote supporting the pick.",
    "instrumentType": "EQUITY",
    "tickerExchange": "NASDAQ",
    "convictionLabel": "High",
    "publicationSlug": "example.substack.com",
    "authorConviction": 4,
    "rationaleSnippet": "Concise rationale for the extracted call."
   }
  ],
  "endDate": "2026-05-30",
  "dateUsed": "2026-05-30",
  "startDate": "2026-05-30"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dripstack-stock-picks-api-a2f0a9e4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dripstack.com](https://www.zero.xyz/host/dripstack.com/llms.txt)