GOFIBER Source Brief - Extractive Q&A from Provided Documents

x402

GOFIBER Source Brief - Extractive Q&A from Provided Documents is a paid API for AI agents from gofiber.hr, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-22).

Extracts relevant excerpts from user-supplied source documents to answer a specific question, without internet search or independent fact synthesis.

Price / call$0.1

Seller volume →—

Success—

StatusUnknown

How this service works

GOFIBER d.o.o. iz Petrinje izvodi elektroinstalacije, strukturno mrežno kabliranje, videonadzor i WAGO PLC automatizaciju u Sisačko-moslavačkoj županiji i šire. Brza ponuda.

Output

Returns a job ID, status (FULFILLED), result URL, and a result object containing: the original question, the extraction method used ('extractive_source_brief'), a list of sources each with their URL and relevant excerpts pulled from the text, a scope disclaimer clarifying no internet search was performed, and a verified flag. The excerpts are direct quotes from the provided source texts.

Example use cases

Contract clause lookup from legal documents

“I have a supplier contract at https://contracts.example.com/supplier-2024 with this text: 'Payments are due within 30 days of invoice. Late fees of 2% apply monthly.' — what does the contract say about payment terms?”

Research report fact extraction

“Here's a research report at https://research.example.com/market-study with the text: 'The EV market grew 34% YoY, with battery costs falling to $110/kWh.' — extract the parts that answer: what are the key statistics about EV market growth and battery costs?”

Policy document question answering

“I have our company policy document at https://internal.example.com/hr-policy containing the text: 'Employees are entitled to 20 days of paid leave annually. Remote work is permitted up to 3 days per week.' — what does it say about remote work allowances?”

Technical details

Endpoint

POSThttps://gofiber.hr/x402/services/source-brief?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need to extract specific information from documents you already have access to, strictly without internet lookups or hallucinated synthesis. It is ideal when you need cited, extractive answers (direct quotes) rather than generated summaries, and when auditability of sources matters. Prefer this over general-purpose LLM Q&A when you need guaranteed grounding in the exact provided text.

Side effects

Source text is empty or below minimum length (minLength: 1)
Source text exceeds maximum length (maxLength: 20000 characters)
More than 5 sources provided (maxItems: 5)
Question exceeds 500 characters
URL does not match required https:// pattern
No relevant excerpts found for the given question in the provided sources
Payment of 0.1 USDC not completed, returning 402
Malformed JSON input causing validation errors

Input

Schema · Request body

Field	Type	Description
sources	array
question	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "job_id": "3f2a9c8e7b6d5a4f3e2d1c0b9a8f7e6d5c4b3a2f1e0d9c8b7a6f5e4d3c2b1a09",
    "result": {
      "scope": "Relevant excerpts from buyer-supplied sources. No internet search, independent source verification or synthesized factual conclusion.",
      "method": "extractive_source_brief",
      "sources": [
        {
          "source_url": "https://example.com/report",
          "relevant_excerpts": [
            "The budget is ten units."
          ],
          "source_verified_online": false
        }
      ],
      "question": "What is the budget?",
      "verified": true
    },
    "status": "FULFILLED",
    "result_url": "https://gofiber.hr/x402/jobs/3f2a9c8e7b6d5a4f3e2d1c0b9a8f7e6d5c4b3a2f1e0d9c8b7a6f5e4d3c2b1a09/result",
    "status_url": "https://gofiber.hr/x402/jobs/3f2a9c8e7b6d5a4f3e2d1c0b9a8f7e6d5c4b3a2f1e0d9c8b7a6f5e4d3c2b1a09"
  }
}

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