Congressgov MCP Server vs Melta UI
A side-by-side look at the Congressgov MCP Server and Melta UI MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Congressgov MCP Server for legal work as a local process; choose Melta UI for legal as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Congressgov MCP Server when
- You need dedicated capabilities in the Legal domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
CONGRESS_API_KEY. - You want tools like
congressgov_bill_lookup, congressgov_enacted_laws, congressgov_member_lookup.
Choose Melta UI when
- You need dedicated capabilities in the Legal domain.
- You prefer a local stdio subprocess transport.
- You want tools like
get_token, get_component, check_rule.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Legal | Legal |
| Quality signal | 59/100 · Good | 68/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | API key required | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | CONGRESS_API_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 1 | 202 |
| Directory activity | 0 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 11 | 6 |
| Full listing | View Congressgov MCP Server | View Melta UI |
Tools & capabilities
Congressgov MCP Server tools 11
congressgov_bill_lookupBrowse and retrieve bills: actions, sponsors, summaries, text, related billscongressgov_enacted_lawsBrowse enacted public and private laws by congresscongressgov_member_lookupFind members by state, district, or congress, and retrieve their legislative portfolioscongressgov_committee_lookupBrowse committees and their legislation, reports, and nominationscongressgov_roll_votesRetrieve House and Senate roll call votes and each member's positioncongressgov_senate_nominationsBrowse presidential nominations and track Senate confirmationcongressgov_bill_summariesBrowse recently updated CRS bill summariescongressgov_crs_reportsBrowse and retrieve nonpartisan CRS policy reportscongressgov_committee_reportsBrowse and read committee reports accompanying legislationcongressgov_daily_recordBrowse and read the daily Congressional Recordcongressgov_search_billsKeyword-search bill titles and CRS summaries via a local full-text mirror (opt-in)
Melta UI tools 6
get_tokenGet a design token by dot-path. Returns the token object with its value and class mapping.get_componentGet component metadata including variants, sizes, accessibility requirements, HTML sample, per-state specs (stateSpecs: disabled/loading/open/empty etc. — each with delta class strings + aria changes), and anatomy parts (overlay/container/th etc. with element/roles/class). Prefer these structured fields over inferring states from the HTML sample.check_ruleCheck class strings against this design system's prohibition rules. Returns violations with reasons and alternatives.check_htmlLint a full HTML/JSX source against melta-ui rules — the same checks as CI and the PostToolUse hook (class rules + html-attr rules + composition rules for HTML). Use this AFTER generating UI code to self-verify before presenting it. Response always includes coverage info (manual rules cannot be auto-checked).searchSearch across tokens and components by keyword. Matches against names, values, class strings, and descriptions. Returns up to 20 results (truncated flag when more matched).get_rulesGet melta-ui prohibition rules from rules.json (107 total). Use this to retrieve manual/contextual rules that check_rule cannot auto-detect. Supports filtering by category, severity, or detector.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Congressgov MCP Server
{
"mcpServers": {
"congressgov-mcp-server": {
"command": "bunx",
"args": [
"@cyanheads/congressgov-mcp-server@latest"
],
"env": {
"CONGRESS_API_KEY": "YOUR_CONGRESS_API_KEY_HERE"
}
}
}
}
Melta UI
{
"mcpServers": {
"melta-ui": {
"command": "npx",
"args": [
"-y",
"melta-ds-mcp"
]
}
}
}
Frequently asked questions
Congressgov MCP Server is categorized under Legal and uses a local stdio subprocess. Melta UI belongs to Legal and uses a local stdio subprocess. Pick Congressgov MCP Server for legal work and Melta UI for legal.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Congressgov MCP Server has no declared pricing — check the project's own site. Auth: api key required. Melta UI has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add congressgov-mcp-server and melta-ui as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Congressgov MCP Server has a quality signal of 59/100 (Good) with 0 views, 0 installs and 1 GitHub stars. Melta UI has 68/100 (Great) with 3 views, 0 installs and 202 GitHub stars.