{"id":47716419,"url":"https://github.com/n24q02m/mcp-relay-core","last_synced_at":"2026-04-02T19:00:54.284Z","repository":{"id":346680053,"uuid":"1191115540","full_name":"n24q02m/mcp-relay-core","owner":"n24q02m","description":"Zero-env-config credential relay for MCP servers (ECDH + AES-256-GCM E2E encryption)","archived":false,"fork":false,"pushed_at":"2026-04-02T09:48:35.000Z","size":407,"stargazers_count":1,"open_issues_count":41,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2026-04-02T09:49:46.720Z","etag":null,"topics":["mcp","mcp-server","model-context-protocol","python","real-time","relay","typescript","websocket"],"latest_commit_sha":null,"homepage":"https://www.npmjs.com/package/@n24q02m/mcp-relay-core","language":"TypeScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/n24q02m.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":"AGENTS.md","dco":null,"cla":null}},"created_at":"2026-03-24T23:48:54.000Z","updated_at":"2026-03-31T12:15:35.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/n24q02m/mcp-relay-core","commit_stats":null,"previous_names":["n24q02m/mcp-relay-core"],"tags_count":13,"template":false,"template_full_name":null,"purl":"pkg:github/n24q02m/mcp-relay-core","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/n24q02m%2Fmcp-relay-core","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/n24q02m%2Fmcp-relay-core/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/n24q02m%2Fmcp-relay-core/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/n24q02m%2Fmcp-relay-core/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/n24q02m","download_url":"https://codeload.github.com/n24q02m/mcp-relay-core/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/n24q02m%2Fmcp-relay-core/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":31313844,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-02T12:59:32.332Z","status":"ssl_error","status_checked_at":"2026-04-02T12:54:48.875Z","response_time":89,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["mcp","mcp-server","model-context-protocol","python","real-time","relay","typescript","websocket"],"created_at":"2026-04-02T19:00:27.532Z","updated_at":"2026-04-02T19:00:54.274Z","avatar_url":"https://github.com/n24q02m.png","language":"TypeScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# mcp-relay-core\n\nZero-env-config credential relay for MCP servers. End-to-end encrypted with ECDH + AES-256-GCM -- the relay server never sees plaintext credentials.\n\n## How It Works\n\n```\nUser (browser)                    Relay Server                MCP Server (CLI)\n     |                                |                            |\n     |  1. Generate ECDH keypair      |                            |\n     |  2. Open relay page            |                            |\n     |         #k=pubkey\u0026p=passphrase |                            |\n     |                                |                            |\n     |  3. Enter credentials in form  |                            |\n     |  4. Encrypt with ECDH shared   |                            |\n     |     secret + passphrase        |                            |\n     |  5. POST /session (encrypted)  |                            |\n     |  ------------------------------\u003e                            |\n     |                                |  6. Poll GET /session/:id  |\n     |                                |  \u003c-------------------------|\n     |                                |  7. Return encrypted blob  |\n     |                                |  -------------------------\u003e|\n     |                                |  8. Decrypt with ECDH      |\n     |                                |     shared secret          |\n     |                                |  9. Store in config file   |\n     |                                |     (AES-256-GCM at rest)  |\n```\n\nThe URL fragment (`#k=...\u0026p=...`) is never sent to the server per RFC 3986. The relay server only ever handles opaque encrypted blobs.\n\n## Packages\n\n| Package | Description | Registry |\n|---------|-------------|----------|\n| `packages/core-ts` | ECDH crypto, config storage, relay client | npm: `@n24q02m/mcp-relay-core` |\n| `packages/core-py` | Same as core-ts, Python implementation | PyPI: `mcp-relay-core` |\n| `packages/relay-server` | Express API for session relay | npm: `@n24q02m/mcp-relay-server` |\n| `pages/` | Static HTML relay forms per MCP server | GitHub Pages |\n\n## Quick Start\n\n```bash\n# Prerequisites: mise (manages node, bun, python, uv)\nmise run setup\n```\n\n## Security Properties\n\n- Relay server is zero-knowledge (never sees plaintext)\n- Sessions: 10-minute TTL, one-shot consumption, max 5 per IP\n- Config file encrypted at rest with machine-bound key (PBKDF2)\n- Passphrase: 4-word Diceware (~52 bits entropy)\n\n## License\n\nMIT\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fn24q02m%2Fmcp-relay-core","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fn24q02m%2Fmcp-relay-core","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fn24q02m%2Fmcp-relay-core/lists"}