ecfr_mcp_server_ecfr_get_title_versions – 1 MCP server offers this tool
What it usually takes
appendix– in 1 of 1chapter– in 1 of 1issue_date_gte– in 1 of 1issue_date_lte– in 1 of 1issue_date_on– in 1 of 1limit– in 1 of 1part– in 1 of 1section– in 1 of 1subchapter– in 1 of 1subpart– in 1 of 1subtitle– in 1 of 1title– in 1 of 1
No server marks it as only reading: treat it as able to change data.
From each publisher's own tool list. We never call a tool.
Servers
| Server | Inputs | Read-only? |
|---|---|---|
eCFR MCP Server co.huggingface.n8layman/ecfr-mcp-server Get amendment/version history for a CFR title. CALL THIS FIRST before ecfr_get_regulation or ecfr_compare_regulations. Each returned version has a 'date' field to use in subsequent calls. Returns: JSON with version history including dates for use in other tools. | appendix,chapter,issue_date_gte,issue_date_lte,issue_date_on,limit,part,section,subchapter,subpart,subtitle,title | Not stated |