# Clutch API > Clutch returns B2B service firm listings, ratings, pricing, and services as a workflow and API. Clutch, also known as Clutch.co, finds B2B service firms by service, location, and project budget. Search agencies returns firm ratings, locations, rates, reviews, services, and links. Search agencies requires a service and can also use location, budget, result count, and sort order. - Page: https://fous.com/tools/clutch - Handle: `@clutch` - Category: [Marketing](https://fous.com/tools/category/marketing) - Source website: https://clutch.co - Last verified: Sep 29, 2026 ## Methods ### Search agencies Operation `search_agencies`, version 1. 1 credit per completed call. Failed calls without a completed billing receipt are free; completed work can remain charged if delivery is interrupted. Find B2B service firms by service, location, and project budget, with ratings, pricing, services and links. Location follows Clutch’s service-area matches; firms without a listed minimum project size are excluded when a budget is provided. **Input** | Field | Type | Required | Example | Description | |---|---|---|---|---| | `sort` | string | no | `"most_reviews"` | Ordering, such as most_reviews; recommended keeps Clutch’s own order. | | `service` | string | yes | `"mobile app development"` | Service you need, such as SEO agency, mobile app development, or accounting. | | `location` | string | no | `"New York City"` | City, state, or country, such as New York City; defaults to anywhere. | | `budget_usd` | number | no | `5000` | Maximum project budget in US dollars, such as 10000; defaults to any budget. | | `max_results` | integer | no | `5` | Maximum number of firms, such as 20 (up to 100). | **Input schema** ```json { "type": "object", "required": [ "service" ], "properties": { "sort": { "enum": [ "recommended", "most_reviews", "highest_rating" ], "type": "string", "default": "recommended", "description": "Ordering, such as most_reviews; recommended keeps Clutch’s own order.", "examples": [ "most_reviews" ] }, "service": { "type": "string", "minLength": 2, "description": "Service you need, such as SEO agency, mobile app development, or accounting.", "examples": [ "mobile app development", "accounting", "SEO agency" ] }, "location": { "type": "string", "default": "", "description": "City, state, or country, such as New York City; defaults to anywhere.", "examples": [ "New York City" ] }, "budget_usd": { "type": "number", "minimum": 0, "description": "Maximum project budget in US dollars, such as 10000; defaults to any budget.", "examples": [ 5000, 10000 ] }, "max_results": { "type": "integer", "default": 20, "maximum": 100, "minimum": 1, "description": "Maximum number of firms, such as 20 (up to 100).", "x-fous-developer": true, "examples": [ 5, 10 ] } }, "additionalProperties": false, "examples": [ { "service": "mobile app development", "max_results": 5 }, { "service": "accounting", "budget_usd": 5000, "max_results": 5 }, { "sort": "most_reviews", "service": "SEO agency", "location": "New York City", "budget_usd": 10000, "max_results": 10 } ] } ``` **Output** | Field | Type | Example | Description | |---|---|---|---| | `firms` | array | | | | `firms[].name` | string | `"Goji Labs"` | | | `firms[].rating` | number or null | `5` | Average rating out of 5. | | `firms[].location` | string or null | `"Los Angeles, CA"` | | | `firms[].employees` | string or null | `"50 - 249"` | | | `firms[].hourly_rate` | string or null | `"$100 - $149 / hr"` | | | `firms[].review_count` | integer | `90` | | | `firms[].website_link` | string or null | `"https://gojilabs.com/lp/mobile-app-development/?utm_source=clutch.co&utm_medium=referral&utm_campaign=directory-mobile-` | | | `firms[].services_offered` | string | `"50% Mobile App Development; 20% Custom Software Development; 10% AI Development; 10% UX/UI Design; 10% Web Development"` | Services and share percentages where shown. | | `firms[].clutch_profile_link` | string | `"https://clutch.co/profile/goji-labs"` | | | `firms[].minimum_project_size` | string or null | `"$25,000+"` | | **Example input** ```json { "service": "mobile app development", "max_results": 5 } ``` **Example output** ```json { "firms": [ { "name": "Goji Labs", "rating": 5, "location": "Los Angeles, CA", "employees": "50 - 249", "hourly_rate": "$100 - $149 / hr", "review_count": 90, "website_link": "https://gojilabs.com/lp/mobile-app-development/?utm_source=clutch.co&utm_medium=referral&utm_campaign=directory-mobile-application-developers", "services_offered": "50% Mobile App Development; 20% Custom Software Development; 10% AI Development; 10% UX/UI Design; 10% Web Development", "clutch_profile_link": "https://clutch.co/profile/goji-labs", "minimum_project_size": "$25,000+" }, { "name": "Mercury Development", "rating": 5, "location": "Aventura, FL", "employees": "250 - 999", "hourly_rate": "$50 - $99 / hr", "review_count": 34, "website_link": "https://mercurydevelopment.com/what-we-do/mobile-app-development/?utm_source=clutch.co&utm_medium=referral&utm_campaign=mobile-application-developers", "services_offered": "20% Mobile App Development; 10% AI Agents; 10% AI Consulting; 10% AI Development; 10% Application Testing; 10% Custom Software Development; 10% IoT Development; 10% UX/UI Design; 10% Wearable App Deve…", "clutch_profile_link": "https://clutch.co/profile/mercury-development", "minimum_project_size": "$25,000+" }, { "name": "Kingsmen Digital Ventures", "rating": 5, "location": "Irvine, CA", "employees": "10 - 49", "hourly_rate": "$150 - $199 / hr", "review_count": 14, "website_link": "https://go.kingsmendv.com/clutch?utm_source=clutch.co&utm_medium=referral&utm_campaign=directory-mobile-application-developers", "services_offered": "35% Mobile App Development; 35% Custom Software Development; 10% AI Development; 10% UX/UI Design; 10% Web Development", "clutch_profile_link": "https://clutch.co/profile/kingsmen-digital-ventures", "minimum_project_size": "$10,000+" } ] } ``` ## Quick start Replace `YOUR_API_KEY` with a Fous API key. To create one, open Developers at the bottom of Fous Studio, turn on Developer mode, then go to API keys (https://app.fous.com/keys). Change the values in `input` to run the same tool on new data. ```bash curl 'https://api.fous.com/v1/query' \ --fail-with-body --silent --show-error --max-time 180 \ -H "Authorization: Bearer YOUR_API_KEY" \ -H 'Content-Type: application/json' \ --data-raw '{ "api": "@clutch", "visibility": "public", "operation": "search_agencies", "version": 1, "input": { "service": "mobile app development", "max_results": 5 }, "response": { "format": "json" } }' ``` ```python # Save as fous.py and run with python3 fous.py. No packages needed. import json import urllib.error import urllib.request api_key = "YOUR_API_KEY" body = json.loads("{\n \"api\": \"@clutch\",\n \"visibility\": \"public\",\n \"operation\": \"search_agencies\",\n \"version\": 1,\n \"input\": {\n \"service\": \"mobile app development\",\n \"max_results\": 5\n },\n \"response\": {\n \"format\": \"json\"\n }\n}") request = urllib.request.Request( "https://api.fous.com/v1/query", data=json.dumps(body).encode("utf-8"), headers={ "Authorization": f"Bearer {api_key}", "Content-Type": "application/json", }, method="POST", ) try: with urllib.request.urlopen(request, timeout=180) as response: result = json.load(response) except urllib.error.HTTPError as error: raise RuntimeError(f"HTTP {error.code}: {error.read().decode('utf-8', errors='replace')}") from error if result.get("success") is False: raise RuntimeError(result.get("error", {}).get("message", "Request failed")) print(json.dumps(result["data"]["output"], indent=2)) ``` ```typescript // Save as fous.mts and run with npx tsx fous.mts. const apiKey = "YOUR_API_KEY"; const response = await fetch("https://api.fous.com/v1/query", { method: "POST", headers: { "Authorization": `Bearer ${apiKey}`, "Content-Type": "application/json", }, signal: AbortSignal.timeout(180_000), body: JSON.stringify({ "api": "@clutch", "visibility": "public", "operation": "search_agencies", "version": 1, "input": { "service": "mobile app development", "max_results": 5 }, "response": { "format": "json" } }), }); type ApiResult = { success: boolean; data?: { output: unknown }; error?: { message: string } }; const result: ApiResult = await response.json(); if (!response.ok || result.success === false) { throw new Error(result.error?.message ?? `HTTP ${response.status}`); } if (!result.data) throw new Error("Missing API response data"); console.log(result.data.output); ``` ## Use from an AI assistant Connect this tool to Claude Code, Claude Desktop, Cursor, VS Code, Codex and any MCP client as its own MCP server. Each method is a typed tool whose arguments are the method’s input. - Server URL: `https://api.fous.com/mcp/tools/clutch` - Authorization: `Authorization: Bearer ` **Tools** - `search_agencies`: Search agencies. 1 credit per completed call. Failed calls without a completed billing receipt are free; completed work can remain charged if delivery is interrupted. - `fous_get_run`: the result of a run that was still going, by its `request_id`. Free. Claude Code: ```bash claude mcp add --scope user --transport http fous-clutch https://api.fous.com/mcp/tools/clutch --header "Authorization: Bearer ${FOUS_API_KEY:?Set FOUS_API_KEY to your Fous API key}" ``` To give the assistant every tool, connect `https://api.fous.com/mcp`: it finds one with `fous_search_tools` and runs it with `fous_run_tool`. Setup for other clients: https://fous.com/llms-full.txt. ## Use cases - Compare agencies by ratings, review counts, and hourly rates - Find firms offering a service in a location - Filter firms by maximum project budget - Review agency services and minimum project sizes - Collect firm websites and profiles for research ## FAQ ### Can I run it with my own inputs? Yes. Change the inputs in Studio and press Run, or send new inputs from your code, or ask a connected AI assistant. ### Can I call this Clutch tool as an API? Yes. Send a POST request to /v1/query with your Fous API key and the inputs, and get JSON back. ### How much does it cost? Each completed run costs 1 credit. Failed runs without a completed receipt are free; completed work can remain charged if delivery is interrupted. With pay as you go, a credit costs 1¢. Monthly plans cost less per credit. ### Do I need a Clutch account? No. You only need a Fous account. ### How current is the data? Fous gets the data from clutch.co when you run it. Some results are reused for up to 24 hours, and results that use your account or key are never reused. It was last verified on Sep 29, 2026. ### Which agencies offer a service in my location? Search agencies finds matching firms using a required service and optional location. ### What are an agency’s rating and hourly rate? Search agencies returns firm ratings, hourly rates, and review counts. ### Which firms fit my project budget? Search agencies can filter by maximum project budget. When a budget is provided, firms without a listed minimum project size are excluded. ## Related - [All Marketing tools](https://fous.com/tools/category/marketing)