Fiber AI vs Sylex Search
A side-by-side look at the Fiber AI and Sylex Search MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Fiber AI for search & data extraction work over a hosted endpoint; choose Sylex Search for search & data extraction as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Fiber AI when
- You need dedicated capabilities in the Search & Data Extraction domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
FIBER_API_KEY. - You want tools like
companySearch_tool, peopleSearch_tool, profileLiveEnrich_tool.
Choose Sylex Search when
- You need dedicated capabilities in the Search & Data Extraction domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You have the keys it needs:
AC_SUPABASE_URL, AC_SUPABASE_KEY, TRANSPORT, PORT. - You want tools like
search.discover, search.details, search.compare.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Search & Data Extraction | Search & Data Extraction |
| Quality signal | 59/100 · Good | 57/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | API key required | No auth required |
| Pricing | BYOK (pay the provider) | Free |
| Required env vars | FIBER_API_KEY | AC_SUPABASE_URLAC_SUPABASE_KEYTRANSPORTPORT |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 4 |
| Directory activity | 1 views 0 installs 0 upvotes | 7 views 0 installs 0 upvotes |
| Tools | 10 | 10 |
| Full listing | View Fiber AI | View Sylex Search |
Tools & capabilities
Fiber AI tools 10
companySearch_toolOperationId: companySearch. Company search. USE THIS WHEN: - Company search. - Search for companies using filters. - Find matching entities with structured filters and pagination. DO NOT USE FOR: - Finding individual people (use peopleSearch) - Getting contact info like email (use syncContactEnrichment after finding profile) EXAMPLE: Input: companySearch_tool(searchParams={}, pageSize=123) INPUT SCHEMA: Required parameters: - searchParams (object): Search parameters for company search API. Properties: ['exactCompanyV2', 'domains', 'headquartersCountryCode', 'headquartersStateName', 'employeeCountV2', 'employeeCountRanges', 'keywords', 'industriesV2', 'stage', 'totalFundingUSD', 'lastFundingUSD', 'lastFundedOn', 'foundedOn', 'nameLike', 'exactCompany', 'acceleratorsV2', 'headquartersLocation', 'linkedinSlugs', 'specialFlags', 'employees', 'naicsCodes', 'fortuneRankings', 'jobPostingsV2', 'jobPostingStats', 'officeLocationsV2', 'tlds', 'numWordsInName', 'status', 'technologies', 'crunchbaseCategories', 'crunchbaseCategoryGroups', 'crunchbaseSlugs', 'investorsV2', 'technologiesV2', 'revenueRangeUSD', 'revenueRan...peopleSearch_toolOperationId: peopleSearch. People search. USE THIS WHEN: - People search. - Search for people using filters. - Find matching entities with structured filters and pagination. DO NOT USE FOR: - Getting email/phone directly (use syncContactEnrichment after finding profile) - Company searches (use companySearch) EXAMPLE: Input: peopleSearch_tool(searchParams={}, pageSize=123) INPUT SCHEMA: Required parameters: Optional parameters: - searchParams (object): Search parameters for people search. - country3LetterCode (['object', 'null']) - numConnections (['object', 'null']) - numFollowers (['object', 'null']) - approxAge (['object', 'null']) - keywords (['object', 'null']) - keywordsV2 (['object', 'null']) - keywordSearchOptions (['object', 'null']) - jobTitleV2 (['object', 'null']) - jobFunction (['object', 'null']) - exactProfile (['object', 'null']) - exactProfileV2 (['object', 'null']) - startedInRole (any) - startedAtCompany (any) - location (['object', 'null']) - lang...profileLiveEnrich_toolOperationId: profileLiveEnrich. Live fetch LinkedIn profile. USE THIS WHEN: - Live fetch LinkedIn profile. - Returns an enriched profile with details (work experience, education, skills, location, etc.) for a given LinkedIn profile identifier. **Note:** This endpoint does NOT return emails or phone numbers. To retrieve a person's contact details (emails and phone numbers), use the `POST /contact-details/single` endpoint (synchronous, recommended) or the `POST /individual-reveal/start` + `POST /individual-reveal/poll` pair (asynchronous). These can be found under the **Contact details** section. - Fetch fresh upstream profile/company/activity data. DO NOT USE FOR: - Batch operations (use search or batch APIs instead) EXAMPLE: Input: profileLiveEnrich_tool(identifier="example_string", getDetailedEducation="example") INPUT SCHEMA: Required parameters: - identifier (string): The profile's LinkedIn slug (e.g. 'williamhgates'), full LinkedIn URL (e.g. 'https://www.linkedin.com/in/williamhgates/'), Sales Navigator URN, or LinkedIn user ID (e.g. '443105112'). Optional parameters: - getDetailedEducation (['boolean', 'nu...companyLiveEnrich_toolOperationId: companyLiveEnrich. Live fetch LinkedIn company. USE THIS WHEN: - Live fetch LinkedIn company. - Returns an enriched company with details for a given LinkedIn company identifier. - Fetch fresh upstream profile/company/activity data. DO NOT USE FOR: - Batch operations (use search or batch APIs instead) EXAMPLE: Input: companyLiveEnrich_tool(type="example_string", value="example_string") INPUT SCHEMA: Required parameters: - type (string): - value (string): The company's LinkedIn slug (e.g. 'microsoft'), LinkedIn URL (e.g. 'https://www.linkedin.com/company/microsoft'), LinkedIn organization ID (e.g. '1441'), or Fiber company ID (e.g. 'comp_1441'). Optional parameters: - getHistoricalHeadcount (boolean): Whether to compute the company's overall employee count over time and recent growth trends. This returns total headcount through time, not a per-department breakdown — for per-department headcount, use the Depth Chart endpoints. No additional cost, but may take longer. RETURNS: Response object with keys: output, chargeInfo, warnings, advicegetQuickstartScript_toolOperationId: getQuickstartScript. Get quickstart install script. USE THIS WHEN: - Get quickstart install script. - Returns a bash script that signs up for a Fiber API trial and prints your API key. - Start an asynchronous workflow, then call the related poll/status endpoint. EXAMPLE: Input: getQuickstartScript_tool() INPUT SCHEMA: Required parameters: Optional parameters:getOrgCredits_toolOperationId: getOrgCredits. Get organization credits. USE THIS WHEN: - Get organization credits. - Get credits for an organization. - Inspect or manage account-level billing and usage settings. EXAMPLE: Input: getOrgCredits_tool() INPUT SCHEMA: Required parameters: Optional parameters: RETURNS: Response object with keys: output, chargeInfo, warnings, advicegetRateLimits_toolOperationId: getRateLimits. Get organization rate limits. USE THIS WHEN: - Get organization rate limits. - Returns the effective rate limits for all API endpoints for your organization. If your organization has custom rate limits on any endpoint, those are reflected here. - Inspect or manage account-level billing and usage settings. EXAMPLE: Input: getRateLimits_tool() INPUT SCHEMA: Required parameters: Optional parameters: RETURNS: Response object with keys: output, chargeInfo, warnings, advicegetAutoTopupSettings_toolOperationId: getAutoTopupSettings. Get auto top-up settings. USE THIS WHEN: - Get auto top-up settings. - Get the organization's auto top-up configuration. When configured is false, no auto top-up settings exist yet. - Inspect or manage account-level billing and usage settings. EXAMPLE: Input: getAutoTopupSettings_tool() INPUT SCHEMA: Required parameters: Optional parameters: RETURNS: Response object with keys: output, chargeInfo, warnings, advicecardsAttach_toolOperationId: cardsAttach. Attach card to trial account. USE THIS WHEN: - Attach card to trial account. - Attach a payment card to a cardless trial organization using a single-use Stripe shared payment token. The card is verified with a temporary $1 authorization that is refunded immediately (net cost $0), and the organization's free-credit ceiling is raised. The verified card is not saved for future charges — every future paid top-up requires a freshly-minted shared payment token. - Inspect or manage account-level billing and usage settings. EXAMPLE: Input: cardsAttach_tool(sharedPaymentGrantedToken="example_string") INPUT SCHEMA: Required parameters: - sharedPaymentGrantedToken (string): Single-use Stripe shared payment token (`spt_...`) authorizing exactly one card handoff. Mint it on the buyer side (see https://docs.stripe.com/agentic-commerce/concepts/shared-payment-tokens); each request must submit a freshly-minted token. Optional parameters: RETURNS: Response object with keys: output, chargeInfo, warnings, advicegetAllApiKeys_toolOperationId: getAllApiKeys. List API keys. USE THIS WHEN: - List API keys. - List all API keys for your organization, including each key's name, prefix, expiration, and per-key credit usage. The secret value of a key is only shown once at creation and is never returned here. First-time users: create your initial API key at https://app.fiber.ai or via POST /v1/account/send-otp + verify-otp. This endpoint manages keys once you have one. EXAMPLE: Input: getAllApiKeys_tool(includeRevoked=True) INPUT SCHEMA: Required parameters: Optional parameters: - includeRevoked (boolean): Include revoked keys in the results. Defaults to false, returning only active keys. RETURNS: Response object with keys: output, chargeInfo, warnings, advice
Sylex Search tools 10
search.discoverSearch the index by natural language query. Returns ranked results with fit scores.search.detailsGet full product data by ID — pricing, features, integrations, reviews.search.compareSide-by-side comparison of 2-5 products.search.categoriesBrowse all categories and subcategories with counts.search.alternativesFind similar products scored by relevance.search.feedbackReport issues or suggest improvements.manage.registerAdd a new product or business to the index. Returns an owner token.manage.claimVerify ownership of an existing listing via URL proof.manage.updateUpdate listing details (description, pricing, category, etc.).manage.list_mcpAdd MCP connection config so other agents can discover and connect.
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.
Fiber AI
{
"mcpServers": {
"fiber-ai": {
"url": "https://mcp.fiber.ai/mcp/v2"
}
}
}
Sylex Search
{
"mcpServers": {
"mastadoonprime-sylex-search": {
"command": "npx",
"args": [
"-y",
"sylex-search"
],
"env": {
"AC_SUPABASE_URL": "YOUR_AC_SUPABASE_URL_HERE",
"AC_SUPABASE_KEY": "YOUR_AC_SUPABASE_KEY_HERE",
"TRANSPORT": "YOUR_TRANSPORT_HERE",
"PORT": "YOUR_PORT_HERE"
}
}
}
}
Frequently asked questions
Fiber AI is categorized under Search & Data Extraction and uses a remote HTTP/SSE transport. Sylex Search belongs to Search & Data Extraction and uses a local stdio subprocess. Pick Fiber AI for search & data extraction work and Sylex Search for search & data extraction.
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.
Fiber AI is bring-your-own-key: usage is billed by the API provider you supply a key for. Auth: api key required. Sylex Search is listed as free. Auth: no auth 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 fiber-ai and mastadoonprime-sylex-search as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Fiber AI has a quality signal of 59/100 (Good) with 1 views, 0 installs and 0 GitHub stars. Sylex Search has 57/100 (Good) with 7 views, 0 installs and 4 GitHub stars.