Connect Longwatch and your agent gets 18 tools, among them check_crypto_price, check_insider_trades, check_now. It answers at https://longwatch.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 5 September 2026; the last check, on 18 October 2026, succeeded.
You are ephemeral; this remembers. Persist watch_id+key; poll later for what you missed.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
check_crypto_price | Check a CoinGecko asset price and whether it currently meets a USD threshold or 24-hour move condition. Costs $0.001 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 402 with the payment requirements. Inputs: coin, above, below, move_pct_24h |
check_insider_trades | Get recent Form 4 insider transactions for a ticker or CIK, parsed into buyer/seller, shares, value, transaction type, and 10b5-1 status. Costs $0.001 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 4 Inputs: ticker, cik |
check_now | This-session snapshot only — no watch, no cursor. Use when you will not come back. Required by type: url/rss/x402 need url; price needs coin plus above, below, or move_pct_24h; edgar needs ticker or cik. 8-K items are decoded, Form 4 trades Inputs: type, url, coin, above, below, move_pct_24h |
check_rss_feed | Read the latest items from a public RSS or Atom feed now. Use for a one-session lookup. Costs $0.001 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative Inputs: url |
check_sec_filings | Get recent SEC filings for a ticker or CIK now, with decoded 8-K items and parsed Form 4 transactions. Costs $0.001 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 402 with the payment requirements. F Inputs: ticker, cik, forms |
check_web_page | Fetch a public web page now and return normalized text metadata. Use for a one-session lookup. Costs $0.001 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 402 with the payment requirements. Free alte Inputs: url |
check_x402_endpoint | Send an unpaid request and validate the endpoint's HTTP 402 challenge, accepted networks, scheme, amount, and recipient. The target probe does not attach payment. Costs $0.001 USDC per call via x402 (Base) — no API key, no account. Calling Inputs: url, method, body, expected_network, expected_scheme, expected_amount_atomic |
create_watch | Keep watching a source between agent runs and alert when it changes. Persist watch_id and key; later poll_alerts with since=<last cursor> returns only what you missed. Required by type: url/rss/x402 need url; price needs coin plus a thresho Inputs: type, url, coin, above, below, move_pct_24h |
delete_watch | Stop and delete a watch. Free. Free — no payment required. Inputs: watch_id, key |
poll_alerts | What is new since your last run. Pass since={last seq you saw}; the response carries a new cursor. New paid watches include 7 days of polling. After that window, one $0.005 paid poll renews the next 7 days. Polling keeps the watch alive; be Inputs: watch_id, key, since |
poll_trial | Poll a trial watch created by try_watch. Free. Pass since={last seq you saw}; the response carries a new cursor. Once the trial expires, create a paid watch with create_watch; paid creation includes 7 days of polling and can be renewed. Fre Inputs: watch_id, key, since |
try_watch | Create a free trial watch — no payment, no wallet, no account. Same watch types as create_watch (url, rss, price, edgar, x402). The trial runs for 24h, one at a time per caller, and cannot use webhooks. Use this first to see what the alerts Inputs: type, url, coin, above, below, move_pct_24h |
watch_crypto_price | Monitor a crypto price between agent runs and alert once when it crosses a threshold, with hysteresis before re-arming. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) — no API key, no account. Calling without payment Inputs: coin, above, below, move_pct_24h, webhook, idempotency_key |
watch_insider_trades | Monitor a company between agent runs for new Form 4 insider buys, sells, grants, and tax withholding. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 402 with Inputs: ticker, cik, webhook, idempotency_key |
watch_rss_feed | Monitor an RSS or Atom feed between agent runs and alert once per new item. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 402 with the payment requirements. Inputs: url, webhook, idempotency_key |
watch_sec_filings | Monitor a company between agent runs for new SEC filings, decoded 8-K events, and parsed Form 4 trades. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 402 wit Inputs: ticker, cik, forms, webhook, idempotency_key |
watch_web_page | Monitor a public web page between agent runs and alert with added and removed text when it changes. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) — no API key, no account. Calling without payment returns 402 with th Inputs: url, webhook, idempotency_key |
watch_x402_endpoint | Monitor an x402 endpoint for downtime and changes to its payment challenge, price, network, scheme, or recipient. Target probes do not attach payment. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) — no API key, no a Inputs: url, method, body, expected_network, expected_scheme, expected_amount_atomic |
Every block below points at https://longwatch.dev/mcp. Pick your client and copy.
claude mcp add --transport http longwatch https://longwatch.dev/mcp
{
"mcpServers": {
"longwatch": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://longwatch.dev/mcp"]
}
}
}{
"mcpServers": {
"longwatch": {
"url": "https://longwatch.dev/mcp"
}
}
}{
"servers": {
"longwatch": {
"type": "http",
"url": "https://longwatch.dev/mcp"
}
}
}{
"context_servers": {
"longwatch": {
"url": "https://longwatch.dev/mcp"
}
}
}{
"mcpServers": {
"longwatch": {
"serverUrl": "https://longwatch.dev/mcp"
}
}
}{
"mcpServers": {
"longwatch": {
"url": "https://longwatch.dev/mcp"
}
}
}name: Longwatch
version: 0.0.1
schema: v1
mcpServers:
- name: Longwatch
type: streamable-http
url: https://longwatch.dev/mcp{
"mcpServers": {
"longwatch": {
"httpUrl": "https://longwatch.dev/mcp"
}
}
}{
"mcpServers": {
"longwatch": {
"type": "http",
"url": "https://longwatch.dev/mcp"
}
}
}{
"mcpServers": {
"longwatch": {
"url": "https://longwatch.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Flongwatch.dev%2Fmcp&type=streamable_http&id=longwatch&name=Longwatch
It answered our last check on 18 October 2026 in 560 ms. Over 10 checks since 5 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
18, as returned by the server's own tools/list on 31 August 2026: check_crypto_price, check_insider_trades, check_now, check_rss_feed, check_sec_filings, check_web_page, check_x402_endpoint, create_watch, and 10 more.
It answered our last check on 18 October 2026 in 560 ms. Over 10 checks since 5 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://longwatch.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: dev.coinop. Endpoint host: longwatch.dev. ARD identifier: urn:air:dev.coinop:mcp:longwatch.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.