此 MCP 可以做什么
Performs one-time or persistent monitoring of web pages, RSS feeds, x402 endpoints, crypto prices, SEC filings, and insider trades.
功能
工具
18
工具
check_crypto_price
Check a crypto price threshold now
Check a CoinGecko asset price and whether it currently meets a USD threshold or 24-hour move condition. Costs $0.001 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['coin'], 'properties': {'coin': {'type': 'string', 'description': 'CoinGecko id, e.g. bitcoin'}, 'above': {'type': 'number'}, 'below': {'type': 'number'}, 'move_pct_24h': {'type': 'number'}}, 'additionalProperties': False}
check_insider_trades
Check insider trades now
Get recent Form 4 insider transactions for a ticker or CIK, parsed into buyer/seller, shares, value, transaction type, and 10b5-1 status. Costs $0.001 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'cik': {'type': 'number'}, 'ticker': {'type': 'string'}}, 'additionalProperties': False}
check_now
Look at a source right now
This-session snapshot only â 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 parsed, and x402 probes validate the unpaid 402 challenge without sending payment. If the job spans runs, create_watch instead and persist watch_id + key. Costs $0.001 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['type'], 'properties': {'cik': {'type': 'number', 'description': 'edgar: SEC CIK, as an alternative to ticker'}, 'url': {'type': 'string', 'description': 'url|rss|x402: public URL'}, 'body': {'type': 'object', 'additionalProperties': {}}, 'coin': {'type': 'string', 'description': "price: CoinGecko id, e.g. 'bitcoin'"}, 'type': {'enum': ['url', 'rss', 'price', 'edgar', 'x402'], 'type': 'string', 'description': 'source type'}, 'above': {'type': 'number', 'description': 'price: threshold to compare against'}, 'below': {'type': 'number', 'description': 'price: threshold to compare against'}, 'forms': {'type': 'array', 'items': {'type': 'string'}, 'description': 'edgar: form filter, e.g. ["8-K","4"]'}, 'method': {'enum': ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'HEAD'], 'type': 'string'}, 'ticker': {'type': 'string', 'description': "edgar: stock ticker, e.g. 'NVDA'"}, 'move_pct_24h': {'type': 'number', 'description': 'price: 24h move threshold to compare against'}, 'expected_scheme': {'type': 'string'}, 'expected_network': {'type': 'string'}, 'expected_amount_atomic': {'type': ['string', 'number']}}, 'additionalProperties': False}
check_rss_feed
Read an RSS feed now
Read the latest items from a public RSS or Atom feed now. Use for a one-session lookup. Costs $0.001 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'public RSS or Atom feed URL'}}, 'additionalProperties': False}
check_sec_filings
Check SEC filings now
Get recent SEC filings for a ticker or CIK now, with decoded 8-K items and parsed Form 4 transactions. Costs $0.001 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'cik': {'type': 'number'}, 'forms': {'type': 'array', 'items': {'type': 'string'}}, 'ticker': {'type': 'string'}}, 'additionalProperties': False}
check_web_page
Read a public web page now
Fetch a public web page now and return normalized text metadata. Use for a one-session lookup. Costs $0.001 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'public http(s) page URL'}}, 'additionalProperties': False}
check_x402_endpoint
Validate an x402 endpoint now
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 $0.001 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url'], 'properties': {'url': {'type': 'string'}, 'body': {'type': 'object', 'additionalProperties': {}}, 'method': {'enum': ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'HEAD'], 'type': 'string'}, 'expected_scheme': {'type': 'string'}, 'expected_network': {'type': 'string'}, 'expected_amount_atomic': {'type': ['string', 'number']}}, 'additionalProperties': False}
create_watch
Create a standing 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 threshold; edgar needs ticker or cik. Create includes the baseline and 7 days of polling. Costs $0.005 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['type'], 'properties': {'cik': {'type': 'number', 'description': 'edgar: SEC CIK, as an alternative to ticker'}, 'url': {'type': 'string', 'description': 'url|rss|x402: public URL to watch'}, 'body': {'type': 'object', 'additionalProperties': {}}, 'coin': {'type': 'string', 'description': "price: CoinGecko id, e.g. 'bitcoin'"}, 'type': {'enum': ['url', 'rss', 'price', 'edgar', 'x402'], 'type': 'string', 'description': 'watch type'}, 'above': {'type': 'number', 'description': 'price: alert when USD price crosses above this'}, 'below': {'type': 'number', 'description': 'price: alert when USD price crosses below this'}, 'forms': {'type': 'array', 'items': {'type': 'string'}, 'description': 'edgar: form filter, e.g. ["8-K","4"]'}, 'method': {'enum': ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'HEAD'], 'type': 'string'}, 'ticker': {'type': 'string', 'description': "edgar: stock ticker, e.g. 'NVDA'"}, 'webhook': {'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string'}}, 'description': 'optional: POST alerts to this URL as they occur (signed); polling still works', 'additionalProperties': False}, 'move_pct_24h': {'type': 'number', 'description': 'price: alert when |24h change| exceeds this percent'}, 'expected_scheme': {'type': 'string'}, 'idempotency_key': {'type': 'string', 'description': 'unique retry key; the same key and input return the original watch without charging twice'}, 'expected_network': {'type': 'string'}, 'expected_amount_atomic': {'type': ['string', 'number']}}, 'additionalProperties': False}
delete_watch
Delete a watch
Stop and delete a watch. Free. Free â no payment required.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['watch_id', 'key'], 'properties': {'key': {'type': 'string', 'description': 'key returned by create_watch'}, 'watch_id': {'type': 'string', 'description': 'watch_id to delete'}}, 'additionalProperties': False}
poll_alerts
Poll a watch for new 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; beta watches remain free. Free through the watch's included polling window; after that, one $0.005 USDC x402 payment renews 7 days. No API key or account.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['watch_id', 'key'], 'properties': {'key': {'type': 'string', 'description': 'key returned by create_watch'}, 'since': {'type': 'number', 'description': 'highest alert seq already seen; 0 on first poll'}, 'watch_id': {'type': 'string', 'description': 'watch_id returned by create_watch'}}, 'additionalProperties': False}
poll_trial
Poll a free trial watch
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. Free â no payment required.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['watch_id', 'key'], 'properties': {'key': {'type': 'string', 'description': 'key returned by try_watch'}, 'since': {'type': 'number', 'description': 'highest alert seq already seen; 0 on first poll'}, 'watch_id': {'type': 'string', 'description': 'watch_id returned by try_watch'}}, 'additionalProperties': False}
try_watch
Create a free trial watch
Create a free trial watch â no payment, no wallet, no account. Same watch types as create_watch (url, rss, price, edgar, x402). The trial runs for 24h, one at a time per caller, and cannot use webhooks. Use this first to see what the alerts look like before paying. Free â no payment required.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['type'], 'properties': {'cik': {'type': 'number', 'description': 'edgar: SEC CIK, as an alternative to ticker'}, 'url': {'type': 'string', 'description': 'url|rss|x402: public URL to watch'}, 'body': {'type': 'object', 'additionalProperties': {}}, 'coin': {'type': 'string', 'description': "price: CoinGecko id, e.g. 'bitcoin'"}, 'type': {'enum': ['url', 'rss', 'price', 'edgar', 'x402'], 'type': 'string', 'description': 'watch type'}, 'above': {'type': 'number', 'description': 'price: alert when USD price crosses above this'}, 'below': {'type': 'number', 'description': 'price: alert when USD price crosses below this'}, 'forms': {'type': 'array', 'items': {'type': 'string'}, 'description': 'edgar: form filter, e.g. ["8-K","4"]'}, 'method': {'enum': ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'HEAD'], 'type': 'string'}, 'ticker': {'type': 'string', 'description': "edgar: stock ticker, e.g. 'NVDA'"}, 'move_pct_24h': {'type': 'number', 'description': 'price: alert when |24h change| exceeds this percent'}, 'expected_scheme': {'type': 'string'}, 'expected_network': {'type': 'string'}, 'expected_amount_atomic': {'type': ['string', 'number']}}, 'additionalProperties': False}
watch_crypto_price
Watch a crypto price threshold
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 $0.005 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['coin'], 'properties': {'coin': {'type': 'string', 'description': 'CoinGecko id, e.g. bitcoin'}, 'above': {'type': 'number'}, 'below': {'type': 'number'}, 'webhook': {'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string'}}, 'description': 'optional HTTPS endpoint for signed push alerts; polling still works', 'additionalProperties': False}, 'move_pct_24h': {'type': 'number'}, 'idempotency_key': {'type': 'string', 'description': 'unique retry key; the same key and input return the original watch'}}, 'additionalProperties': False}
watch_insider_trades
Watch a company for 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 $0.005 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'cik': {'type': 'number'}, 'ticker': {'type': 'string'}, 'webhook': {'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string'}}, 'description': 'optional HTTPS endpoint for signed push alerts; polling still works', 'additionalProperties': False}, 'idempotency_key': {'type': 'string', 'description': 'unique retry key; the same key and input return the original watch'}}, 'additionalProperties': False}
watch_rss_feed
Watch an RSS feed for new items
Monitor an RSS or Atom feed between agent runs and alert once per new item. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'public RSS or Atom feed URL'}, 'webhook': {'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string'}}, 'description': 'optional HTTPS endpoint for signed push alerts; polling still works', 'additionalProperties': False}, 'idempotency_key': {'type': 'string', 'description': 'unique retry key; the same key and input return the original watch'}}, 'additionalProperties': False}
watch_sec_filings
Watch a company for 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 $0.005 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'cik': {'type': 'number'}, 'forms': {'type': 'array', 'items': {'type': 'string'}}, 'ticker': {'type': 'string'}, 'webhook': {'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string'}}, 'description': 'optional HTTPS endpoint for signed push alerts; polling still works', 'additionalProperties': False}, 'idempotency_key': {'type': 'string', 'description': 'unique retry key; the same key and input return the original watch'}}, 'additionalProperties': False}
watch_web_page
Watch a web page for text changes
Monitor a public web page between agent runs and alert with added and removed text when it changes. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'public http(s) page URL'}, 'webhook': {'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string'}}, 'description': 'optional HTTPS endpoint for signed push alerts; polling still works', 'additionalProperties': False}, 'idempotency_key': {'type': 'string', 'description': 'unique retry key; the same key and input return the original watch'}}, 'additionalProperties': False}
watch_x402_endpoint
Watch an 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 $0.005 USDC per call via x402 (Base) â no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch â no wallet needed.
输入模式
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url'], 'properties': {'url': {'type': 'string'}, 'body': {'type': 'object', 'additionalProperties': {}}, 'method': {'enum': ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'HEAD'], 'type': 'string'}, 'webhook': {'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string'}}, 'description': 'optional HTTPS endpoint for signed push alerts; polling still works', 'additionalProperties': False}, 'expected_scheme': {'type': 'string'}, 'idempotency_key': {'type': 'string', 'description': 'unique retry key; the same key and input return the original watch'}, 'expected_network': {'type': 'string'}, 'expected_amount_atomic': {'type': ['string', 'number']}}, 'additionalProperties': False}
历史
近期工具变更
已添加
delete_watch
2026年9月17日 12:39
已添加
poll_trial
2026年9月17日 12:39
已添加
try_watch
2026年9月17日 12:39
已添加
poll_alerts
2026年9月17日 12:39
已添加
watch_x402_endpoint
2026年9月17日 12:39
已添加
check_x402_endpoint
2026年9月17日 12:39
已添加
watch_insider_trades
2026年9月17日 12:39
已添加
check_insider_trades
2026年9月17日 12:39
已添加
watch_sec_filings
2026年9月17日 12:39
已添加
check_sec_filings
2026年9月17日 12:39
已添加
watch_crypto_price
2026年9月17日 12:39
已添加
check_crypto_price
2026年9月17日 12:39
已添加
watch_rss_feed
2026年9月17日 12:39
已添加
check_rss_feed
2026年9月17日 12:39
已添加
watch_web_page
2026年9月17日 12:39
已添加
check_web_page
2026年9月17日 12:39
已添加
create_watch
2026年9月17日 12:39
已添加
check_now
2026年9月17日 12:39
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