History of pubchem-mcp-server in namespace io.github
io.github.cyanheads/pubchem-mcp-server · Registry status: active
No name of its own reaches this register for this entry. The heading therefore carries the trailing segment of the identifier; the identifier itself is listed below as a coordinate.
Every published change to this entry, most recent first.
| 2026-10-08 | Declared version: 0.6.5 → 0.6.6 |
|---|---|
| 2026-10-08 | Last changed in the registry (raw): 2026-09-25 → 2026-10-07 |
| 2026-10-08 | First listed in the registry (raw): 2026-09-25 → 2026-10-07 |
| 2026-10-08 | Environment variable descriptions (raw): MCP_AUTH_MODE=Authentication mode to use: 'none', 'jwt', or 'oauth'. · MCP_HTTP_ENDPOINT_PATH=The endpoint path for the MCP server. · MCP_HTTP_HOST=The hostname for the HTTP server. · MCP_HTTP_PORT=The port to run the HTTP server on. · MCP_LOG_LEVEL=Sets the minimum log level for output (e.g., 'debug', 'info', 'warn'). · MCP_SESSION_MODE=HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful. → MCP_AUTH_MODE=Authentication mode to use: 'none', 'jwt', or 'oauth'. · MCP_HTTP_ENDPOINT_PATH=The endpoint path for the MCP server. · MCP_HTTP_HOST=The hostname for the HTTP server. · MCP_HTTP_PORT=The port to run the HTTP server on. · MCP_LOG_LEVEL=Sets the minimum log level for output (e.g., 'debug', 'info', 'warn'). · MCP_SESSION_MODE=HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful. · MCP_TRANSPORT_TYPE=Selects the HTTP transport. |
| 2026-10-08 | Connection paths (source structure): {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.5","runtimeHint":"bun","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.5","runtimeHint":"bun","transport":"streamable-http","environment":[{"name":"MCP_SESSION_MODE","description":"HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} → {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.6","runtimeHint":"npx","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":false},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.6","runtimeHint":"npx","transport":"streamable-http","environment":[{"name":"MCP_TRANSPORT_TYPE","description":"Selects the HTTP transport.","format":"string","required":false,"secret":false},{"name":"MCP_SESSION_MODE","description":"HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":false}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} |
| 2026-10-08 | Runtime hints (raw): bun → npx |
| 2026-10-08 | Package versions (raw): 0.6.5 → 0.6.6 |
| 2026-10-08 | Environment variables (raw): MCP_LOG_LEVEL, MCP_SESSION_MODE, MCP_HTTP_HOST, MCP_HTTP_PORT, MCP_HTTP_ENDPOINT_PATH, MCP_AUTH_MODE, MCP_LOG_LEVEL → MCP_LOG_LEVEL, MCP_TRANSPORT_TYPE, MCP_SESSION_MODE, MCP_HTTP_HOST, MCP_HTTP_PORT, MCP_HTTP_ENDPOINT_PATH, MCP_AUTH_MODE, MCP_LOG_LEVEL |
| 2026-09-26 | Declared version: 0.6.3 → 0.6.5 |
| 2026-09-26 | Last changed in the registry (raw): 2026-09-19 → 2026-09-25 |
| 2026-09-26 | First listed in the registry (raw): 2026-09-19 → 2026-09-25 |
| 2026-09-26 | Connection paths (source structure): {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.3","runtimeHint":"bun","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.3","runtimeHint":"bun","transport":"streamable-http","environment":[{"name":"MCP_SESSION_MODE","description":"HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} → {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.5","runtimeHint":"bun","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.5","runtimeHint":"bun","transport":"streamable-http","environment":[{"name":"MCP_SESSION_MODE","description":"HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} |
| 2026-09-26 | Package versions (raw): 0.6.3 → 0.6.5 |
| 2026-09-20 | Declared version: 0.6.2 → 0.6.3 |
| 2026-09-20 | Last changed in the registry (raw): 2026-09-13 → 2026-09-19 |
| 2026-09-20 | First listed in the registry (raw): 2026-09-13 → 2026-09-19 |
| 2026-09-20 | Connection paths (source structure): {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.2","runtimeHint":"bun","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.2","runtimeHint":"bun","transport":"streamable-http","environment":[{"name":"MCP_SESSION_MODE","description":"HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} → {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.3","runtimeHint":"bun","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.3","runtimeHint":"bun","transport":"streamable-http","environment":[{"name":"MCP_SESSION_MODE","description":"HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} |
| 2026-09-20 | Package versions (raw): 0.6.2 → 0.6.3 |
| 2026-09-14 | Declared version: 0.6.1 → 0.6.2 |
| 2026-09-14 | Last changed in the registry (raw): 2026-08-21 → 2026-09-13 |
| 2026-09-14 | First listed in the registry (raw): 2026-08-21 → 2026-09-13 |
| 2026-09-14 | Environment variable descriptions (raw): MCP_AUTH_MODE=Authentication mode to use: 'none', 'jwt', or 'oauth'. · MCP_HTTP_ENDPOINT_PATH=The endpoint path for the MCP server. · MCP_HTTP_HOST=The hostname for the HTTP server. · MCP_HTTP_PORT=The port to run the HTTP server on. · MCP_LOG_LEVEL=Sets the minimum log level for output (e.g., 'debug', 'info', 'warn'). → MCP_AUTH_MODE=Authentication mode to use: 'none', 'jwt', or 'oauth'. · MCP_HTTP_ENDPOINT_PATH=The endpoint path for the MCP server. · MCP_HTTP_HOST=The hostname for the HTTP server. · MCP_HTTP_PORT=The port to run the HTTP server on. · MCP_LOG_LEVEL=Sets the minimum log level for output (e.g., 'debug', 'info', 'warn'). · MCP_SESSION_MODE=HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful. |
| 2026-09-14 | Connection paths (source structure): {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.1","runtimeHint":"bun","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.1","runtimeHint":"bun","transport":"streamable-http","environment":[{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} → {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.2","runtimeHint":"bun","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.2","runtimeHint":"bun","transport":"streamable-http","environment":[{"name":"MCP_SESSION_MODE","description":"HTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} |
| 2026-09-14 | Package versions (raw): 0.6.1 → 0.6.2 |
| 2026-09-14 | Environment variables (raw): MCP_LOG_LEVEL, MCP_HTTP_HOST, MCP_HTTP_PORT, MCP_HTTP_ENDPOINT_PATH, MCP_AUTH_MODE, MCP_LOG_LEVEL → MCP_LOG_LEVEL, MCP_SESSION_MODE, MCP_HTTP_HOST, MCP_HTTP_PORT, MCP_HTTP_ENDPOINT_PATH, MCP_AUTH_MODE, MCP_LOG_LEVEL |
| 2026-09-08 | Connection paths (source structure): – → {"packages":[{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.1","runtimeHint":"bun","transport":"stdio","environment":[{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true},{"registryType":"npm","identifier":"@cyanheads/pubchem-mcp-server","version":"0.6.1","runtimeHint":"bun","transport":"streamable-http","environment":[{"name":"MCP_HTTP_HOST","description":"The hostname for the HTTP server.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_PORT","description":"The port to run the HTTP server on.","format":"string","required":false,"secret":false},{"name":"MCP_HTTP_ENDPOINT_PATH","description":"The endpoint path for the MCP server.","format":"string","required":false,"secret":false},{"name":"MCP_AUTH_MODE","description":"Authentication mode to use: 'none', 'jwt', or 'oauth'.","format":"string","required":false,"secret":false},{"name":"MCP_LOG_LEVEL","description":"Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').","format":"string","required":false,"secret":false}],"additional_arguments_declared":true}],"remotes":[{"url":"https://pubchem.caseyjhand.com/mcp","transport":"streamable-http","headers":[]}]} |
| 2026-08-26 | Description (raw): – → Search PubChem compounds, properties, safety data, bioactivity, and cross-references. |
| 2026-08-22 | Declared version: 0.6.0 → 0.6.1 |
| 2026-08-22 | Last changed in the registry (raw): 2026-07-28 → 2026-08-21 |
| 2026-08-22 | First listed in the registry (raw): 2026-07-28 → 2026-08-21 |
| 2026-08-22 | Package versions (raw): 0.6.0 → 0.6.1 |
| 2026-08-16 | Last changed in the registry (raw): – → 2026-07-28 |
| 2026-08-16 | First listed in the registry (raw): – → 2026-07-28 |
| 2026-08-16 | Registry status message (raw): – → – |
| 2026-08-16 | Schema version of the raw record (raw): – → https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json |
| 2026-08-16 | Icon formats (raw): – → – |
| 2026-08-16 | Environment variable descriptions (raw): – → MCP_AUTH_MODE=Authentication mode to use: 'none', 'jwt', or 'oauth'. · MCP_HTTP_ENDPOINT_PATH=The endpoint path for the MCP server. · MCP_HTTP_HOST=The hostname for the HTTP server. · MCP_HTTP_PORT=The port to run the HTTP server on. · MCP_LOG_LEVEL=Sets the minimum log level for output (e.g., 'debug', 'info', 'warn'). |
| 2026-08-16 | Environment variable formats (raw): – → string |
| 2026-08-16 | Delivery form (raw): – → package and remote |
| 2026-08-16 | Remote hosts (raw): – → pubchem.caseyjhand.com |
| 2026-08-16 | Remote URLs (raw): – → https://pubchem.caseyjhand.com/mcp |
| 2026-08-16 | Runtime hints (raw): – → bun |
| 2026-08-16 | Package versions (raw): – → 0.6.0 |
| 2026-08-16 | Package identifiers (raw): – → @cyanheads/pubchem-mcp-server |
| 2026-08-16 | Repository subfolder (raw): – → – |
| 2026-08-16 | Repository platform (raw): – → github |
| 2026-08-16 | Path environment variables (raw): – → – |
| 2026-08-16 | Required secret headers (raw): – → – |
| 2026-08-06 | Declared version: – → 0.6.0 |
| 2026-08-06 | Repository URL listed: – → yes |
This view pages forward and states no total: individual rows are dropped only at output time when their evidence is missing. A counted total would be larger than what is shown.
tracevero · https://tracevero.com/mcp/io-github-cyanheads-pubchem-mcp-server/aenderungen