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 11 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 |
|---|---|---|---|
| UTC ISO week-date UTC ISO week-date | remote | 1.0.01 version | None reported |
| BLAKE3 hex length, input discarded BLAKE3 hex length, input discarded | remote | 1.0.01 version | None reported |
| SHA-3 hex length, input discarded SHA-3 hex length, input discarded | remote | 1.0.01 version | None reported |
| SHA-512 hex length, input discarded SHA-512 hex length, input discarded | remote | 1.0.01 version | None reported |
| mailto: shape, address discarded mailto: shape, address discarded | remote | 1.0.01 version | None reported |
| data: URI media-type only, payload discarded data: URI media-type only, payload discarded | remote | 1.0.01 version | None reported |
| IPFS CID charset, value discarded IPFS CID charset, value discarded | remote | 1.0.01 version | None reported |
| SemVer range operators, value discarded SemVer range operators, value discarded | remote | 1.0.01 version | None reported |
| SPDX license expression tokens, value discarded SPDX license expression tokens, value discarded | remote | 1.0.01 version | None reported |
| Base64 padding shape, input discarded Base64 padding shape, input discarded | remote | 1.0.01 version | None reported |
| Avro magic-byte check, file discarded Avro magic-byte check, file discarded | remote | 1.0.01 version | None reported |
| Six-field cron shape Six-field cron shape | remote | 1.0.01 version | None reported |
| Parquet magic-byte check, file discarded Parquet magic-byte check, file discarded | remote | 1.0.01 version | None reported |
| Decimal-place count for a number Decimal-place count for a number | remote | 1.0.01 version | None reported |
| Cargo.toml crate name shape, body discarded Cargo.toml crate name shape, body discarded | remote | 1.0.01 version | None reported |
| Compose service count, body discarded Compose service count, body discarded | remote | 1.0.01 version | None reported |
| Lockfile family hint, body discarded Lockfile family hint, body discarded | remote | 1.0.01 version | None reported |
| TAR ustar check, file discarded TAR ustar check, file discarded | remote | 1.0.01 version | None reported |
| Guess MIME from a file extension, name discarded Guess MIME from a file extension, name discarded | remote | 1.0.01 version | None reported |
| Safe filename charset, name discarded Safe filename charset, name discarded | remote | 1.0.01 version | None reported |
| Git branch name safety, name discarded Git branch name safety, name discarded | remote | 1.0.01 version | None reported |
| Git SHA hex length, value discarded Git SHA hex length, value discarded | remote | 1.0.01 version | None reported |
| Whether current UTC hour is weekday NYSE window Whether current UTC hour is weekday NYSE window | remote | 1.0.01 version | None reported |
| Coarse moon phase from UTC day Coarse moon phase from UTC day | remote | 1.0.01 version | None reported |
| UK postcode shape, value discarded UK postcode shape, value discarded | remote | 1.0.01 version | None reported |
| UTC ISO to unix seconds, value discarded UTC ISO to unix seconds, value discarded | remote | 1.0.01 version | None reported |
| ICAO airport code shape ICAO airport code shape | remote | 1.0.01 version | None reported |
| Lat/lng bounding-box shape Lat/lng bounding-box shape | remote | 1.0.01 version | None reported |
| BCP 47 lang attribute shape BCP 47 lang attribute shape | remote | 1.0.01 version | None reported |
| WCAG AAA contrast for two hex colors WCAG AAA contrast for two hex colors | remote | 1.0.01 version | None reported |
| CSS rule count, stylesheet discarded CSS rule count, stylesheet discarded | remote | 1.0.01 version | None reported |
| Canonical URL host only, URL discarded Canonical URL host only, URL discarded | remote | 1.0.01 version | None reported |
| Open Graph tag count, markup discarded Open Graph tag count, markup discarded | remote | 1.0.01 version | None reported |
| Terraform block count, body discarded Terraform block count, body discarded | remote | 1.0.01 version | None reported |
| pyproject.toml table count, body discarded pyproject.toml table count, body discarded | remote | 1.0.01 version | None reported |
| gitignore rule count, body discarded gitignore rule count, body discarded | remote | 1.0.01 version | None reported |
| PGP armor fence check, key discarded PGP armor fence check, key discarded | remote | 1.0.01 version | None reported |
| SSH fingerprint hex shape, value discarded SSH fingerprint hex shape, value discarded | remote | 1.0.01 version | None reported |
| TOTP secret charset, secret discarded TOTP secret charset, secret discarded | remote | 1.0.01 version | None reported |
| GIF magic-byte check, file discarded GIF magic-byte check, file discarded | remote | 1.0.01 version | None reported |
| WebAssembly magic-byte check, file discarded WebAssembly magic-byte check, file discarded | remote | 1.0.01 version | None reported |
| SVG root-tag shape, markup discarded SVG root-tag shape, markup discarded | remote | 1.0.01 version | None reported |
| PubMed id shape, value discarded PubMed id shape, value discarded | remote | 1.0.01 version | None reported |
| Slack channel name shape, value discarded Slack channel name shape, value discarded | remote | 1.0.01 version | None reported |
| sha256 digest shape, value discarded sha256 digest shape, value discarded | remote | 1.0.01 version | None reported |
| Container image tag charset, name discarded Container image tag charset, name discarded | remote | 1.0.01 version | None reported |
| ISBN-13 digit shape, value discarded ISBN-13 digit shape, value discarded | remote | 1.0.01 version | None reported |
| Clamp n into [min,max], numbers discarded Clamp n into [min,max], numbers discarded | remote | 1.0.01 version | None reported |
| a/b ratio shape, numbers discarded a/b ratio shape, numbers discarded | remote | 1.0.01 version | None reported |
| a as percent of b, numbers discarded a as percent of b, numbers discarded | remote | 1.0.01 version | None reported |