MCP server registry, checked every day
The full official MCP Registry: 61,326 servers and 241,494 versions, checked every night against public bug databases. A red flag means someone reported a problem. Look before you install.
61,326servers watched
87have a reported issue
9list a version with a reported issue
Last checked 8 hours ago. No flag does not mean safe, only that nothing has been reported publicly. For a full trust grade, see the graded directory.
| Server | Runs as | Listed version | Reported issues |
|---|---|---|---|
| ISO country US Public ISO 3166-1 record for US. | remote | 1.0.01 version | None reported |
| Currency EUR ISO 4217 currency EUR. | remote | 1.0.01 version | None reported |
| Currency USD ISO 4217 currency USD. | remote | 1.0.01 version | None reported |
| HTTP 429 too-many-requests Meaning of HTTP 429. | remote | 1.0.01 version | None reported |
| HTTP 401 unauthorized Meaning of HTTP 401. | remote | 1.0.01 version | None reported |
| HTTP 500 internal-error Meaning of HTTP 500. | remote | 1.0.01 version | None reported |
| HTTP 200 ok Meaning of HTTP 200. | remote | 1.0.01 version | None reported |
| HTTP 404 not-found Meaning of HTTP 404. | remote | 1.0.01 version | None reported |
| Australia/Sydney clock Current local time in Australia/Sydney. | remote | 1.0.01 version | None reported |
| Asia/Shanghai clock Current local time in Asia/Shanghai. | remote | 1.0.01 version | None reported |
| Asia/Tokyo clock Current local time in Asia/Tokyo. | remote | 1.0.01 version | None reported |
| Europe/Paris clock Current local time in Europe/Paris. | remote | 1.0.01 version | None reported |
| America/Los_Angeles clock Current local time in America/Los_Angeles. | remote | 1.0.01 version | None reported |
| America/New_York clock Current local time in America/New_York. | remote | 1.0.01 version | None reported |
| ISO ordinal day ISO ordinal day | remote | 1.0.01 version | None reported |
| Weekday vs weekend Weekday vs weekend | remote | 1.0.01 version | None reported |
| 16 hex chars 16 hex chars | remote | 1.0.01 version | None reported |
| Word count, text discarded Word count, text discarded | remote | 1.0.01 version | None reported |
| IPv4 or IPv6, address discarded IPv4 or IPv6, address discarded | remote | 1.0.01 version | None reported |
| application/json marker application/json marker | remote | 1.0.01 version | None reported |
| Punycode host check Punycode host check | remote | 1.0.01 version | None reported |
| URL host only URL host only | remote | 1.0.01 version | None reported |
| Nano ID shape check Nano ID shape check | remote | 1.0.01 version | None reported |
| ULID shape check ULID shape check | remote | 1.0.01 version | None reported |
| UUID shape check UUID shape check | remote | 1.0.01 version | None reported |
| Kilometers to miles Kilometers to miles | remote | 1.0.01 version | None reported |
| Celsius to Fahrenheit Celsius to Fahrenheit | remote | 1.0.01 version | None reported |
| Hex color to RGB Hex color to RGB | remote | 1.0.01 version | None reported |
| SHA-256, input discarded SHA-256, input discarded | remote | 1.0.01 version | None reported |
| Base64 encode, input discarded Base64 encode, input discarded | remote | 1.0.01 version | None reported |
| Slug character check Slug character check | remote | 1.0.01 version | None reported |
| JWT header shape, payload discarded JWT header shape, payload discarded | remote | 1.0.01 version | None reported |
| SemVer numbers only SemVer numbers only | remote | 1.0.01 version | None reported |
| Email shape, address discarded Email shape, address discarded | remote | 1.0.01 version | None reported |
| JSON validity JSON validity | remote | 1.0.01 version | None reported |
| Leap year check Leap year check | remote | 1.0.01 version | None reported |
| UTC weekday name UTC weekday name | remote | 1.0.01 version | None reported |
| RFC 3339 UTC stamp RFC 3339 UTC stamp | remote | 1.0.01 version | None reported |
| ISO week number ISO week number | remote | 1.0.01 version | None reported |
| Unix epoch milliseconds Unix epoch milliseconds | remote | 1.0.01 version | None reported |
| Unix epoch seconds Unix epoch seconds | remote | 1.0.01 version | None reported |
| RoamTime Japan Foliage Forecast Forecast peak autumn-foliage dates for viewing spots across Japan. Free tier, no key. | remote | 1.0.01 version | None reported |
| aiworker-data Paid x402 tools (USDC per call): defi_yields, defi_protocol, scrape_markdown, scrape_summary. | remote | 0.2.01 version | None reported |
| Robots Inspect Fetch a public robots.txt and return group counts only. | remote | 1.0.01 version | None reported |
| IANA Zones Common IANA timezone names for clock calls. | remote | 1.0.01 version | None reported |
| HTTP Status Short catalog of common HTTP status codes. | remote | 1.0.01 version | None reported |
| UUID Mint Mint a random UUID v4. | remote | 1.0.01 version | None reported |
| URL Normalize Return origin, host, and path. Query and fragment are dropped. | remote | 1.0.01 version | None reported |
| Timezone Clock Current time in a named IANA timezone. | remote | 1.0.01 version | None reported |
| JSON Check Check whether text is valid JSON. The body is discarded. | remote | 1.0.01 version | None reported |