DECIMER MCP Server vs Wcagc MCP
A side-by-side look at the DECIMER MCP Server and Wcagc MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose DECIMER MCP Server for biology & bioinformatics work as a local process; choose Wcagc MCP for biology & bioinformatics as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose DECIMER MCP Server when
- You need dedicated capabilities in the Biology & Bioinformatics domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
DECIMER_API_BASE_URL, DECIMER_API_TIMEOUT_SECONDS, DECIMER_MAX_IMAGE_BYTES, DECIMER_MCP_LOG_LEVEL. - You want tools like
server_health, analyze_chemical_image.
Choose Wcagc MCP when
- You need dedicated capabilities in the Biology & Bioinformatics domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
WCAGC_MCP_KEY. - You want tools like
scan_url, check_pdf, list_sites.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Biology & Bioinformatics | Biology & Bioinformatics |
| Quality signal | 44/100 · Fair | 63/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | API key required |
| Pricing | Not declared | Freemium |
| Required env vars | DECIMER_API_BASE_URLDECIMER_API_TIMEOUT_SECONDSDECIMER_MAX_IMAGE_BYTESDECIMER_MCP_LOG_LEVEL | WCAGC_MCP_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 0 |
| Directory activity | 1 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 2 | 7 |
| Full listing | View DECIMER MCP Server | View Wcagc MCP |
Tools & capabilities
DECIMER MCP Server tools 2
server_healthChecks whether the DECIMER FastAPI server is reachable.analyze_chemical_imageSends a base64-encoded image to `/image2smiles/` and returns structured output.
Wcagc MCP tools 7
scan_urlScan any public URL, or a registered site for full tracking (Pro+).check_pdfRun a PDF/UA-1 structure check on a public PDF.list_sitesList the account's registered sites.scan_siteCrawl and scan every reachable page of a registered site.get_root_causesGroup a run's repeated DOM patterns and return factual element/page blast radius.run_journeyReplay a saved multi-step journey and check each step.get_trendsRead a site's violation-count history over time.
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.
DECIMER MCP Server
{
"mcpServers": {
"decimer-mcp-server": {
"command": "uvx",
"args": [
"decimer-mcp-server"
],
"env": {
"DECIMER_API_BASE_URL": "YOUR_DECIMER_API_BASE_URL_HERE",
"DECIMER_API_TIMEOUT_SECONDS": "YOUR_DECIMER_API_TIMEOUT_SECONDS_HERE",
"DECIMER_MAX_IMAGE_BYTES": "YOUR_DECIMER_MAX_IMAGE_BYTES_HERE",
"DECIMER_MCP_LOG_LEVEL": "YOUR_DECIMER_MCP_LOG_LEVEL_HERE"
}
}
}
}
Wcagc MCP
{
"mcpServers": {
"wcag-compliance-wcagc-mcp": {
"command": "npx",
"args": [
"-y",
"@wcagc/mcp"
],
"env": {
"WCAGC_MCP_KEY": "YOUR_WCAGC_MCP_KEY_HERE"
}
}
}
}
Frequently asked questions
DECIMER MCP Server is categorized under Biology & Bioinformatics and uses a local stdio subprocess. Wcagc MCP belongs to Biology & Bioinformatics and uses a local stdio subprocess. Pick DECIMER MCP Server for biology & bioinformatics work and Wcagc MCP for biology & bioinformatics.
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.
DECIMER MCP Server has no declared pricing — check the project's own site. Wcagc MCP is listed as freemium — a free tier with paid plans. Auth: api key required. 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 decimer-mcp-server and wcag-compliance-wcagc-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, DECIMER MCP Server has a quality signal of 44/100 (Fair) with 1 views, 0 installs and 0 GitHub stars. Wcagc MCP has 63/100 (Good) with 3 views, 0 installs and 0 GitHub stars.