Semantic API runs on your own machine — the client starts it, so there is no endpoint to ping. 94 installs a week from pypi.
Search and discover any API using natural language. 163+ providers with auto-discovery.
Nothing serious here today
Today is the operative word: we check Semantic API every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add semanticapi -e 'SEMANTIC_API_KEY=<SEMANTIC_API_KEY>' -- uvx semanticapi-mcp{
"mcpServers": {
"semanticapi": {
"command": "uvx",
"args": [
"semanticapi-mcp"
],
"env": {
"SEMANTIC_API_KEY": "<SEMANTIC_API_KEY>"
}
}
}
}[mcp_servers.semanticapi]
command = "uvx"
args = ["semanticapi-mcp"]
env = { SEMANTIC_API_KEY = "<SEMANTIC_API_KEY>" }{
"mcpServers": {
"semanticapi": {
"command": "uvx",
"args": [
"semanticapi-mcp"
],
"env": {
"SEMANTIC_API_KEY": "<SEMANTIC_API_KEY>"
}
}
}
}{
"servers": {
"semanticapi": {
"type": "stdio",
"command": "uvx",
"args": [
"semanticapi-mcp"
],
"env": {
"SEMANTIC_API_KEY": "<SEMANTIC_API_KEY>"
}
}
}
}Put your own value in place of
<SEMANTIC_API_KEY> (Your Semantic API key from https://semanticapi.dev).
The author’s registry entry marks it as required.
Alternatives to Semantic API
same job, measured the same wayAPI discovery and x402 paid execution via MCP. Search by natural-language, call with USDC payment
Web search, URL discovery, scraping & extraction with agent-browser and search providers
Semantic document memory using Redis vector store. Save and recall files with natural language.
Interact with the Stitch API using natural language commands.
Context layer with semantic and visual search and discovery for agentic commerce — by vviinn.
Auth0 MCP Server: Manage Auth0 applications, APIs, actions, logs, and forms using natural language
Search South Korea's national R&D regulations in natural language with cited provisions.
Discover, resolve, and query official Brazilian economic data with semantic search and provenance.
Semantic API — questions
Answers built from our own checks of this server.