SVSV APIDeveloper Referencev1
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Model Context Protocol

SV MCP

A FastMCP server that exposes SV's SEO and GEO tools natively to AI agents — Claude Desktop, Claude Code, Cursor, and any MCP-capable host. Built directly on the sv-cli core library: no duplicated resolver, auth, or async-task logic.

17
Tools exposed
FastMCP
Server framework
OAuth
2.1 auth
HTTP
Transport
One shared core, three interfaces. sv-cli, sv-mcp, and direct HTTP all resolve enums, manage auth, and handle async task polling through the same underlying library. A fix or new tool added to sv-cli is automatically available through the MCP server and the REST API.

01How it works

sv-mcp is a FastMCP server that wraps the sv-cli core library. It exposes 15 SV API tools as MCP tools, plus get_task_status and get_task_result for async tasks. SEO Image is available through the API and CLI only. When an AI agent calls a tool, the MCP server delegates to the same resolver, auth stack, and async-task logic used by the CLI — so behaviour is identical whether you call sv seogpt generate from a terminal or invoke the seogpt MCP tool from Claude Desktop.

Async tools (GEO Audit, Prose, SEO Strategist, SEO Mapping) return a task ID straight away. The agent can pass wait: true on a call to wait up to 45 seconds for the result. If the task is still running after that, the tool returns the task ID and the agent follows up with get_task_status / get_task_result.

sv-mcp architecture
# The MCP server sits on top of sv-cli core:
#
#  Claude Desktop / Claude Code / Cursor
#       ↓  MCP protocol (Streamable HTTP)
#  sv-mcp  (FastMCP server)           ←  you are here
#       ↓  sv-cli core library
#  SV REST API  (ai.seovendor.co/api)
#
# Every MCP tool call:
# 1. FastMCP receives the JSON-RPC tool call
# 2. sv-cli core resolves enums + validates fields
# 3. Async tools return a task ID (or wait up to 45s)
# 4. Result returned to the MCP host as structured JSON

02Connect to Claude.ai

URL-only setup. When registering via the Claude.ai custom connector UI, you only need the base URL. FastMCP mounts the MCP protocol endpoint there; OAuth callback and discovery routes are also served on this domain but you do not reference them directly.
claude.ai connector URL
# In Claude.ai: Customize → Connectors → + → Add custom connector

Connector URL:   https://mcp.seovendor.co

# Click Connect and sign in to SV. Claude handles the OAuth 2.1 flow.
# Your SV API key is linked during sign-in and is never shown to Claude.

On Team and Enterprise plans, an Owner first adds the connector under Organization settings → Connectors; members then connect it themselves.

03Connect to Claude Desktop

Claude Desktop uses the same connectors as Claude.ai. Open Customize → Connectors → + → Add custom connector, paste https://mcp.seovendor.co, then click Connect and sign in to SV. Connectors you add on Claude.ai appear in Claude Desktop automatically.

04Connect to Claude Code

Add sv-mcp as a remote server from the terminal, or commit a .mcp.json to your project so every collaborator gets it automatically.

claude mcp add
# Add via Claude Code CLI
claude mcp add --transport http sv-mcp https://mcp.seovendor.co

# Verify it registered
claude mcp list
.mcp.json (project root)
{
  "mcpServers": {
    "sv-mcp": { "type": "http", "url": "https://mcp.seovendor.co" }
  }
}

05Other MCP hosts

Any MCP-compatible host that supports Streamable HTTP can connect to sv-mcp using the same base URL.

HostWhere to addValue
Cursor~/.cursor/mcp.json{ "mcpServers": { "sv-mcp": { "url": "https://mcp.seovendor.co" } } }
VS Code.vscode/mcp.json{ "servers": { "sv-mcp": { "type": "http", "url": "https://mcp.seovendor.co" } } }
Windsurf~/.codeium/windsurf/mcp_config.json{ "mcpServers": { "sv-mcp": { "serverUrl": "https://mcp.seovendor.co" } } }
Cline / RooMCP Settings → Remote Serverhttps://mcp.seovendor.co, Streamable HTTP
Continueconfig.json mcpServers arrayurl: https://mcp.seovendor.co, Streamable HTTP
Clients that only support stdioBridge via mcp-remote{ "mcpServers": { "sv-mcp": { "command": "npx", "args": ["-y", "mcp-remote", "https://mcp.seovendor.co"] } } }
Custom hostAny MCP 1.x SDKStreamable HTTP, base URL https://mcp.seovendor.co

06Available tools

15 SV API tools are exposed as MCP tools, plus two task tools. Async tools return a task ID straight away; pass wait: true to wait up to 45 seconds for the result.

MCP tool nameAPI endpointModeDescription
seogptseogptSyncShort-form SEO text such as meta titles and descriptions.
proseseogpt2AsyncLong-form articles and blog posts.
content-transformercontent-transformerSyncRewrites or reformats supplied text into a content type.
better-keywordsbetter-keywordsSyncKeyword research with volume, CPC, competition and intent.
insight-igniterinsight-igniterSyncEntities and topics AI engines associate with a website.
topical-authoritytopical-authoritySyncTopical content plan for a keyword.
core-analysiscore-analysisSyncOn-page SEO analysis of a URL.
preliminaryauditpreliminaryauditSyncQuick SEO health score for a URL.
geogptauditgeogptauditAsyncVisibility in AI-generated answers for given entities.
seogptcompareseogptcompareAsyncCompares a URL against its top competitors.
seogptmappingseogptmappingAsyncMaps keywords to the most relevant pages on a domain.
ranklensranklensSyncHow a site ranks across repeated AI-engine queries, and its competitors.
content-qualitycontent-qualitySyncE-E-A-T and helpful-content score for a page.
top-competitorstop-competitorsSyncTop-ranking competitor URLs for a keyword.
marketplace-servicesmarketplace-servicesSyncSearches SV's catalog of services.
get_task_status——Checks the status of an async task.
get_task_result——Fetches the result of a finished async task.

07Authentication

sv-mcp uses OAuth 2.1 for all hosted connections. You authenticate once through your SV account — no API key configuration required in the MCP host. The flow below happens automatically when you click Connect.

StepWhat happens
1. ConnectYou click Connect in your MCP host (Claude, Cursor, etc.). The host opens the SV OAuth endpoint.
2. ConsentSV presents an OAuth consent screen. You accept the requested permissions.
3. LoginYou log in with your SV account credentials on the SV OAuth login page.
4. RedirectOn success, SV redirects back to the MCP host with a short-lived authorization code. The host is now Connected.
5. Token exchangesv-mcp exchanges the authorization code for a short-lived session token. This token never leaves the server.
6. API key resolutionBefore each API call, sv-mcp securely exchanges the session token for your SV API key server-side. The API key is never exposed to the MCP host or the AI model.
7. In-memory cacheThe resolved API key is held in server memory for 5 minutes, then discarded. sv-mcp re-resolves it on demand when needed again.
Your API key is never exposed. The OAuth flow keeps your SV API key entirely server-side. The MCP host (Claude, Cursor, etc.) and the AI model see only tool results — the key is resolved in memory by sv-mcp and discarded after 5 minutes.

08sv-cli vs REST API vs sv-mcp

All three interfaces use the same core library. SV MCP exposes every tool except SEO Image. Choose based on context.

Interfacesv-cli (terminal)SV REST API (HTTP)sv-mcp (MCP)
Who uses itHumans, shell scripts, CIAny HTTP clientAI agents (MCP hosts)
AuthSV_API_KEY env or profilek in JSON bodyOAuth 2.1 (hosted) or SV_API_KEY (local install)
Async handling--wait flag or manual poll3-step: createTask → poll → getResultReturns a task ID, or waits up to 45s with wait: true
Enum resolutionFuzzy + strict modesRaw integers / stringssv-cli core (same)
Output formattable, csv, json, markdown…JSON envelopeStructured JSON to host
Underlying coresv-cli libraryN/Asv-cli library (shared)

09Points and limits

Successful tool calls use points from your SV account. Failed calls, get_task_status and get_task_result are free. The SV API accepts 1 request per second per API key; SV MCP retries automatically if that limit is reached.

10Run SV MCP locally (optional)

$ install
pip install sv-mcp
mcpServers config
{
  "mcpServers": {
    "sv-mcp": {
      "command": "uvx",
      "args": ["sv-mcp"],
      "env": { "SV_API_KEY": "your-key" }
    }
  }
}

11Privacy, support and source

Privacy: seovendor.co/privacy-policy/#api-mcp-cli · Support: [email protected] · Source: github.com/seovendorco/sv-mcp

SVSV API
Base URL https://ai.seovendor.co/api  ·  All requests are POST · JSON in, JSON out · © 2026 SEO Vendor. Built for agencies since 2004.