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Exa · B2B companies, people, LinkedIn signals and contact enrichment

Fiber.ai

Fiber.ai data through the Exa Agent: search across 40M+ companies and 850M+ people, company and person lookups, email reverse lookup, LinkedIn signals (job changes, headcount, fundraising) and contact reveal (work email, personal email, phone). Ask in natural language and, for structured output, pass output_schema naming the fields you want from Fiber.ai. Examples: "Ten Series A fintech companies in New York with 50 to 200 employees: name, domain, headcount, last funding." "Who is the current head of marketing at Vercel, with their LinkedIn URL." "Reverse-look up jane@example.com to a person and their company." Price: Exa effort (minimal $0.012, low $0.025, medium $0.10, high $0.50 per run) plus $0.02 per Fiber credit: a search costs 2 credits plus 1 per result, a company lookup about 2 per candidate, a person lookup 2, a contact reveal 2 (work email) to 5 (phone); calls with no match are free; the cost Exa reports is billed, up to max_cost_usd (default $1.025). Usually answers inline within a minute; otherwise returns a run id to read with exa/agent-run-get.

Usage based ExaResearchexa/fiberListed

Activation pending; your agent will see it as unavailable until then.

Use this tool with your agent

Give this to your agent
Use my connected Agentik MCP server. I want to use the tool exa/fiber (Fiber.ai via Exa: B2B companies, people, LinkedIn signals and contact enrichment). Call inspect_tool with {"tool_id": "exa/fiber"} first and tell me the price before anything runs. Ask me for the inputs it needs; never invent values, IDs or file URLs. When I confirm, call run_tool with tool_id "exa/fiber" and my inputs, follow it with get_run if it is still running, and give me the result and the price Agentik reports. If the tool is unavailable, say so and use discover_tools to propose an alternative.
Show the prompt

Paste it into Claude, ChatGPT or Codex: your agent takes it from there, and shows the price before it runs.

Parameters

NameTypeRequiredDescription
querystringYesWhat you want from Fiber.ai, in natural language. Be explicit about the entities (domains, tickers, company names, routes, dates) and the fields you expect.
output_schemaobjectNoOptional JSON Schema for the structured answer (returned in output.structured). Name each field after the Fiber.ai data you want, e.g. {"type":"object","required":["domain","monthlyVisits"],"properties":{"domain":{"type":"string"},"monthlyVisits":{"type":"number","description":"from Fiber.ai"}}}.
effortstringNoExa Agent effort: minimal $0.012 (one quick lookup), low $0.025 (default), medium $0.10, high $0.50, plus partner calls. Options: minimal, low, medium, high.
max_cost_usdnumberNoCeiling reserved for this run, effort plus Fiber.ai calls (default $1.025, at most $20). The real cost Exa reports is billed, never more than this.

How your agent calls it

First inspect_tool for the current schema and price, then run_tool with the published example after confirming your inputs:

{
  "tool_id": "exa/fiber",
  "input": {
    "query": "The current head of marketing at Vercel: name, title and LinkedIn URL, from Fiber.",
    "effort": "minimal"
  }
}

Price and billing

Price
Usage based
Model
Usage based
Detail
Billed at the cost the provider reports for the call, never above $20. Your agent sees the maximum before running.
  • The provider’s price, 0% markup.
  • One prepaid balance for every provider; your agent sees the price before it runs.
  • Pay for measured usage; unused reservations are released.