stocks.insider-sentiment

Aggregated insider sentiment for a US-listed company, by month. For each month returns the net change in insider share holdings and Finnhub's MSPR (Monthly Share Purchase Ratio, −100 to +100 — higher means more net insider buying). Pass ticker and optionally a from/to window (YYYY-MM-DD; defaults to ~1 year). A distilled signal layered on top of raw insider filings. Data by Finnhub.

price
$0.0010 USDC per call
method
GET/api/stocks/insider-sentiment
payment
x402 v2 · USDC on Base (EIP-3009) or Solana (SPL transfer)
auth
None. Sign the payment, retry with PAYMENT-SIGNATURE.

Overview

The insider sentiment API is a pay-per-call stocks endpoint built for AI agents and autonomous software. Aggregated insider sentiment for a US-listed company, by month.

There is no signup and no API key. An agent (or any HTTP client) hits the endpoint, receives an x402 "402 Payment Required" challenge, signs a sub-cent USDC payment on Base or Solana, and retries — the data comes back on the paid request. That makes it a drop-in insider sentiment data source for an agent tool-use loop, an MCP host, or a backend that needs stocks data on demand without onboarding to yet another vendor portal.

Use cases

Parameters

NameTypeDescription
tickerrequiredstringUS-listed ticker symbol.
min 1 chars · max 12 chars · match ^[A-Za-z][A-Za-z0-9.\-]{0,11}$
fromstringEarliest month date YYYY-MM-DD (default: ~1 year ago).
match ^\d{4}-\d{2}-\d{2}$
tostringLatest month date YYYY-MM-DD (default: today).
match ^\d{4}-\d{2}-\d{2}$

Code samples

cURLbash
# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/stocks/insider-sentiment?ticker=example&from=2024-01-01&to=2024-01-01'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/stocks/insider-sentiment?ticker=example&from=2024-01-01&to=2024-01-01' \
  -H 'PAYMENT-SIGNATURE: <base64-json-payload>'

# Or use the canonical runner (handles probe → sign → retry):
#   EVM_PRIVATE_KEY=0x... node --env-file=.env.local \
#     --experimental-strip-types scripts/x402-pay.ts \
#     'https://2s.io/api/stocks/insider-sentiment?ticker=example&from=2024-01-01&to=2024-01-01'
TypeScript / Node — @2sio/sdktypescript
import { TwoS } from '@2sio/sdk'

const client = new TwoS({
  privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})

const result = await client.stocks.insiderSentiment({
  "ticker": "example",
  "from": "2024-01-01",
  "to": "2024-01-01"
})

console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)
Python — 2siopython
import os
from twosio import TwoS

client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])

result = client.stocks.insider_sentiment(ticker="example", from="2024-01-01", to="2024-01-01")

print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)
MCP — Claude Desktop / AgentKit / any MCP hostjson
// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
//    EVM_PRIVATE_KEY funds x402 payments per call.

// claude_desktop_config.json
{
  "mcpServers": {
    "2sio": {
      "command": "npx",
      "args": ["-y", "@2sio/mcp"],
      "env": { "EVM_PRIVATE_KEY": "0x..." }
    }
  }
}

// 2. Once the server is running, agents call this tool via standard MCP:

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "stocks.insider-sentiment",
    "arguments": {
      "ticker": "example",
      "from": "2024-01-01",
      "to": "2024-01-01"
    }
  }
}

Response

FieldTypeDescription
okboolean
one of: true
itemsarray
totalintegerTotal matching rows upstream; null when unknown.
sourceobject
metaobject
Example response datajson
{
  "ok": true,
  "items": [
    {
      "symbol": "example",
      "year": 1,
      "month": 1,
      "change": 1,
      "mspr": 1
    }
  ],
  "total": 1,
  "source": {
    "provider": "example",
    "url": "example",
    "license": "example"
  },
  "meta": {
    "symbol": "example",
    "from": "example",
    "to": "example"
  }
}

FAQ

Do I need an API key to use the insider sentiment API?
No. stocks.insider-sentiment is x402-native — there is no signup and no API key. Your client makes the call, receives a 402 with payment requirements, signs a USDC payment, and retries. Funds come from a wallet you control.
How much does the insider sentiment API cost?
$0.0010 USDC per call, charged per request. There are no monthly fees, seats, or minimums — you pay only for the calls you make.
Can I try the insider sentiment API for free first?
Yes. Add ?trial=1 (or the header X-2s-Trial: 1) to get a free real call per endpoint per hour, so you can verify the response shape before wiring payment.
Which networks and tokens are supported?
USDC on Base (via EIP-3009 transferWithAuthorization) or Solana (SPL transfer), using the open x402 payment protocol.
How do I call stocks.insider-sentiment from an AI agent or MCP host?
Use @2sio/sdk (TypeScript), 2sio (Python), or the @2sio/mcp server for any MCP host — each handles the probe → sign → retry loop for you. See the code samples on this page.

Discovery

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