Read domain stats, competitors, keywords, rankings and ad history in SpyFu. For SEO and paid search marketers who research competitors with SpyFu. Hosted by usefulapi — connect from Claude, ChatGPT, Cursor, or any MCP client.
Team and Enterprise: an Owner adds the connector for the organization first.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"spyfu": {
"url": "https://spyfu.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"spyfu": {
"type": "http",
"url": "https://spyfu.usefulapi.io/mcp"
}
}
}No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run these commands. The second one opens the login page:
Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.
Read the top competitors and the keywords that you share with them.
spyfu_get_top_competitors spyfu_get_competing_keywords
Read the keywords where a domain outranks another one.
spyfu_get_outranking_keywords spyfu_get_seo_keywords
Read the metrics and the related keywords. Check the results page too.
spyfu_get_keyword_information spyfu_get_related_keywords spyfu_get_serp_analysis
Read the paid keywords, the paid results and the ad history of a domain.
spyfu_get_ppc_keywords spyfu_get_paid_serps spyfu_get_domain_ad_history
Read the domain stats history and the ranking changes.
spyfu_get_domain_stats spyfu_get_domain_stats_history spyfu_get_ranking_history
The login page asks for your SpyFu API ID and SpyFu Secret Key.
Find both in SpyFu → Account Settings → API Usage. API access needs a Pro + AI or Team/Agency plan. SpyFu bills API usage per row returned; this server keeps result pages small. Your key is used only to call the API on your behalf and to derive a private account id.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your SpyFu API ID and SpyFu Secret Key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
Turn on the SpyFu connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
spyfu_get_domain_stats | read | Get latest domain stats Latest SEO and PPC stats of a domain: monthly organic clicks, paid clicks, budget, ranking keywords, strength. Use past_n_months for more months. SpyFu bills the account for each row returned, so keep page_size small. API: GET domain_stats_api/v2/getLatestDomainStats. |
spyfu_get_domain_stats_history | read | Get full domain stats history Monthly SEO and PPC stats of a domain for all months SpyFu has (many rows, billed per row). Prefer spyfu_get_domain_stats unless you need the full history. API: GET domain_stats_api/v2/getAllDomainStats. |
spyfu_get_domain_stats_for_month | read | Get domain stats for one month SEO and PPC stats of a domain for one month (yyyy-mm). API: GET domain_stats_api/v2/getDomainStatsForExactDate. |
spyfu_get_bulk_domain_stats | read | Get stats for several domains SEO and PPC stats for up to 20 domains in one call (comma-separated). By default only the latest month per domain. API: GET domain_stats_api/v2/getBulkDomainStats. |
spyfu_find_matching_domains | read | Find domains matching a keyword Find domains that match a search phrase, with traffic, budget and strength figures. SpyFu bills the account for each row returned, so keep page_size small. API: GET domain_stats_api/v2/getMatchingDomains. |
spyfu_get_top_competitors | read | Get top competitors of a domain Top competitor domains by keyword overlap. channel: seo, ppc or combined. SpyFu bills the account for each row returned, so keep page_size small. API: GET competitors_api/v2/<channel>/getTopCompetitors. |
spyfu_get_competing_keywords | read | Get keywords shared by domains Keywords that several domains rank or advertise for (overlap) or that only the first domain has (is_intersection false and exclude_domains set). channel: seo or ppc. SpyFu bills the account for each row returned, so keep page_size small. API: GET keyword_api/v2/kombat/getCompeting<Seo|Ppc>Keywords. |
spyfu_get_seo_keywords | read | Get organic keywords of a domain Organic keywords a domain ranks for, with rank, search volume, clicks and cost. search_type picks the view: MostValuable, NewlyRanked, GainedRanks, LostRanks, GainedClicks, LostClicks, JustMadeIt (reached top 10), JustFellOff (left top 10). SpyFu bills the account for each row returned, so keep page_size small. API: GET serp_api/v2/seo/getSeoKeywords. |
spyfu_get_outranking_keywords | read | Get keywords where a domain outranks another Organic keywords where domain ranks above compare_domain (search_type TheyOutrankYou) or where domain just passed compare_domain (TheyJustSurpassedYou). SpyFu bills the account for each row returned, so keep page_size small. API: GET serp_api/v2/seo/getOrganicOutrankingKeywords. |
spyfu_get_top_pages | read | Get top pages of a domain Top organic pages of a domain by estimated traffic (search_type MostTraffic) or newly ranking pages (New). SpyFu bills the account for each row returned, so keep page_size small. API: GET serp_api/v2/seo/getTopPages. |
spyfu_get_serp_analysis | read | Analyze the results page of a keyword The organic results (domains, ranks, traffic, strength) for one keyword. Returns up to 105 rows by default; set page_size low. API: GET serp_api/v2/seo/getSerpAnalysisKeywords. |
spyfu_get_ranking_history | read | Get ranking changes of a domain over time Rank changes of a domain between two dates. query_type: MostValuable, FellFromTop10, MadeTheTop10, NewKeywords, NoLongerRanks, GainedRanks, LostRanks, GainedClicks, LostClicks. SpyFu bills the account for each row returned, so keep page_size small. API: GET organic_history_api/v2/historic/getHistoricRankingsForDomain. |
spyfu_get_keyword_information | read | Get metrics for keywords Search volume, difficulty, cost per click and clicks for up to 20 given keywords. Billed per keyword row. API: GET keyword_api/v2/related/getKeywordInformation. |
spyfu_get_related_keywords | read | Get related keywords Keyword ideas for a seed keyword. type: related (default), questions, transactions, also_ranks_for, also_buys_ads_for, phrase_match. SpyFu bills the account for each row returned, so keep page_size small. API: GET keyword_api/v2/related/getRelatedKeywords or getKeywordExpansions. |
spyfu_get_ppc_keywords | read | Get paid keywords of a domain Keywords a domain buys ads for. kind: most_successful (default) or new. SpyFu bills the account for each row returned, so keep page_size small. API: GET keyword_api/v2/ppc/getMostSuccessful or getNewKeywords. |
spyfu_get_paid_serps | read | Get paid search results of a domain Search result pages where a domain showed ads, with ad position and count. SpyFu bills the account for each row returned, so keep page_size small. API: GET serp_api/v2/ppc/getPaidSerps. |
spyfu_get_domain_ad_history | read | Get ad history of a domain Ads (copy, position, keywords) a domain ran in search results over time. Rows are costly (about $3 per 1000). SpyFu bills the account for each row returned, so keep page_size small. API: GET cloud_ad_history_api/v2/domain/getDomainAdHistory. |
spyfu_get_term_ad_history | read | Get ad history of a keyword Ads that ran for one keyword over time, with the advertisers. Rows are costly (about $3 per 1000). SpyFu bills the account for each row returned, so keep page_size small. API: GET cloud_ad_history_api/v2/term/getTermAdHistory. |
spyfu_get_api_usage | read | Get API usage for a month Rows used and cost of the SpyFu API for a month (yyyy-mm), in total, by day or by method. API: GET accounts_api/v2/usage/month/{month}[/daily|/method]. |
spyfu_usage_status | Usage status (free-tier meter) Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter. | |
spyfu_request_feature | Request a missing feature Tell usefulapi that the user needs something the SpyFu tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. | |
spyfu_upgrade | Upgrade to Pro (unlimited*) Get Pro: unlimited tool calls (fair use limit: 10,000 a month) on SpyFu (the free tier caps monthly usage). Plans: "monthly" — $9/month; "yearly" — $90/year (2 months free). Cancel any time: Pro then runs to the end of the paid period, so it also suits a one-time job. *A fair use limit applies. For heavy use (near Pro's limit): "plus" or "plus_yearly" — Pro+, $39/month or $390/year, unlimited tool calls (fair use limit: 100,000 a month); an existing Pro subscription changes to Pro+ in place (needs confirm: true; the price difference for the rest of the period is charged at once). Otherwise returns a short link to open in your browser (it opens Stripe Checkout); after payment the account upgrades automatically. Does not count against the meter. | |
spyfu_cancel_subscription | Cancel the Pro subscription Cancel the caller's SpyFu Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run spyfu_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | Unlimited* |
*Pro fair use limit: 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this SpyFu server only. Subscribe with spyfu_upgrade (it returns a Stripe Checkout link). Cancel any time with spyfu_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running spyfu_upgrade before then undoes the cancel. Or write to [email protected].
Find the top competitors of a domain. Find keyword gaps. Research a keyword. Study the ads of a competitor. Track a domain over time. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by SpyFu. The server calls the SpyFu API with your own SpyFu access, so it sees only the data that your account can see.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
The login page asks for your SpyFu API ID and SpyFu Secret Key. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your SpyFu API ID and SpyFu Secret Key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the SpyFu API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in SpyFu.
All 19 SpyFu tools are marked read-only.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls (fair use limit: 10,000 tool calls a month), for this SpyFu server only. Cancel any time: Pro then runs to the end of the paid period. Run spyfu_usage_status to see how many calls you used.
Ask the AI to run spyfu_upgrade: it returns a Stripe Checkout link. To cancel, run spyfu_cancel_subscription. Pro continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with spyfu_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.