Every remote server in the official MCP registry, sent one real
initialize handshake. 16,923 servers across
11,823 hosts.
Search what these servers can do · read the measurement
Last checked 2026-09-06. We send a handshake, we do not authenticate and we do not call a tool.
Gated is not broken. 4,068 of these servers answer with a 401 or 403. They are running and want a credential we do not have. A checker that treats them as dead is wrong about 24.0% of the registry before it starts, so we count them separately and always will.
16,923 matching.
| server | result | tools | host |
|---|---|---|---|
| competitor-tracker
https://mcp.competitortracker.io/mcp |
answers a handshake | 1 | mcp.competitortracker.io |
| Dozier Exposure Audit
https://dozier.io/backend/mcp |
answers a handshake | 1 | dozier.io |
| mpc-knowledge-base
https://mypaintingclub.com/kb/mcp |
answers a handshake | 1 | mypaintingclub.com |
| Agent Guild x402 Payment Safety
https://agent-guild-5d5r.onrender.com/mcp/payment-safety/ |
answers a handshake | 1 | agent-guild-5d5r.onrender.com |
| current-sea
https://current-sea.fastapicloud.dev/mcp |
answers a handshake | 1 | current-sea.fastapicloud.dev |
| address-validator
https://address-validator.api.klymax402.com/mcp |
answers a handshake | 1 | address-validator.api.klymax402.com |
| barcode-generator
https://barcode-generator.api.klymax402.com/mcp |
answers a handshake | 1 | barcode-generator.api.klymax402.com |
| base64-codec
https://base64-codec.api.klymax402.com/mcp |
answers a handshake | 1 | base64-codec.api.klymax402.com |
| code-sandbox
https://code-sandbox.api.klymax402.com/mcp |
answers a handshake | 1 | code-sandbox.api.klymax402.com |
| color-palette
https://color-palette.api.klymax402.com/mcp |
answers a handshake | 1 | color-palette.api.klymax402.com |
| cron-parser
https://cron-parser.api.klymax402.com/mcp |
answers a handshake | 1 | cron-parser.api.klymax402.com |
| crontab-generator
https://crontab-generator.api.klymax402.com/mcp |
answers a handshake | 1 | crontab-generator.api.klymax402.com |
| crypto-news
https://crypto-news.api.klymax402.com/mcp |
answers a handshake | 1 | crypto-news.api.klymax402.com |
| csv-to-json
https://csv-to-json.api.klymax402.com/mcp |
answers a handshake | 1 | csv-to-json.api.klymax402.com |
| currency-converter
https://currency-converter.api.klymax402.com/mcp |
answers a handshake | 1 | currency-converter.api.klymax402.com |
| diff-checker
https://diff-checker.api.klymax402.com/mcp |
answers a handshake | 1 | diff-checker.api.klymax402.com |
| dns-lookup
https://dns-lookup.api.klymax402.com/mcp |
answers a handshake | 1 | dns-lookup.api.klymax402.com |
| ens-resolver
https://ens-resolver.api.klymax402.com/mcp |
answers a handshake | 1 | ens-resolver.api.klymax402.com |
| fact-checker
https://fact-checker.api.klymax402.com/mcp |
answers a handshake | 1 | fact-checker.api.klymax402.com |
| funding-arb
https://funding-arb.api.klymax402.com/mcp |
answers a handshake | 1 | funding-arb.api.klymax402.com |
| gas-estimator
https://gas-estimator.api.klymax402.com/mcp |
answers a handshake | 1 | gas-estimator.api.klymax402.com |
| hash-generator
https://hash-generator.api.klymax402.com/mcp |
answers a handshake | 1 | hash-generator.api.klymax402.com |
| hl-vaults
https://hl-vaults.api.klymax402.com/mcp |
answers a handshake | 1 | hl-vaults.api.klymax402.com |
| html-to-markdown
https://html-to-markdown.api.klymax402.com/mcp |
answers a handshake | 1 | html-to-markdown.api.klymax402.com |
| http-headers
https://http-headers.api.klymax402.com/mcp |
answers a handshake | 1 | http-headers.api.klymax402.com |
| hyperliquid-whales
https://hyperliquid-whales.api.klymax402.com/mcp |
answers a handshake | 1 | hyperliquid-whales.api.klymax402.com |
| image-resize
https://image-resize.api.klymax402.com/mcp |
answers a handshake | 1 | image-resize.api.klymax402.com |
| json-validator
https://json-validator.api.klymax402.com/mcp |
answers a handshake | 1 | json-validator.api.klymax402.com |
| jwt-decoder
https://jwt-decoder.api.klymax402.com/mcp |
answers a handshake | 1 | jwt-decoder.api.klymax402.com |
| language-detector
https://language-detector.api.klymax402.com/mcp |
answers a handshake | 1 | language-detector.api.klymax402.com |
| liquidation-oracle
https://liquidation-oracle.api.klymax402.com/mcp |
answers a handshake | 1 | liquidation-oracle.api.klymax402.com |
| lorem-ipsum
https://lorem-ipsum.api.klymax402.com/mcp |
answers a handshake | 1 | lorem-ipsum.api.klymax402.com |
| markdown-renderer
https://markdown-renderer.api.klymax402.com/mcp |
answers a handshake | 1 | markdown-renderer.api.klymax402.com |
| markdown-to-html
https://markdown-to-html.api.klymax402.com/mcp |
answers a handshake | 1 | markdown-to-html.api.klymax402.com |
| nft-metadata
https://nft-metadata.api.klymax402.com/mcp |
answers a handshake | 1 | nft-metadata.api.klymax402.com |
| ocr-extract
https://ocr-extract.api.klymax402.com/mcp |
answers a handshake | 1 | ocr-extract.api.klymax402.com |
| password-strength
https://password-strength.api.klymax402.com/mcp |
answers a handshake | 1 | password-strength.api.klymax402.com |
| pdf-generator
https://pdf-generator.api.klymax402.com/mcp |
answers a handshake | 1 | pdf-generator.api.klymax402.com |
| pii-detector
https://pii-detector.api.klymax402.com/mcp |
answers a handshake | 1 | pii-detector.api.klymax402.com |
| port-scanner
https://port-scanner.api.klymax402.com/mcp |
answers a handshake | 1 | port-scanner.api.klymax402.com |
| qr-code
https://qr-code.api.klymax402.com/mcp |
answers a handshake | 1 | qr-code.api.klymax402.com |
| regex-generator
https://regex-generator.api.klymax402.com/mcp |
answers a handshake | 1 | regex-generator.api.klymax402.com |
| research-report
https://research-report.api.klymax402.com/mcp |
answers a handshake | 1 | research-report.api.klymax402.com |
| slug-generator
https://slug-generator.api.klymax402.com/mcp |
answers a handshake | 1 | slug-generator.api.klymax402.com |
| sms-validator
https://sms-validator.api.klymax402.com/mcp |
answers a handshake | 1 | sms-validator.api.klymax402.com |
| solana-fees
https://solana-fees.api.klymax402.com/mcp |
answers a handshake | 1 | solana-fees.api.klymax402.com |
| solana-launches
https://solana-launches.api.klymax402.com/mcp |
answers a handshake | 1 | solana-launches.api.klymax402.com |
| ssl-checker
https://ssl-checker.api.klymax402.com/mcp |
answers a handshake | 1 | ssl-checker.api.klymax402.com |
| stock-price
https://stock-price.api.klymax402.com/mcp |
answers a handshake | 1 | stock-price.api.klymax402.com |
| text-classifier
https://text-classifier.api.klymax402.com/mcp |
answers a handshake | 1 | text-classifier.api.klymax402.com |