companybook.bg valid

CompanyBook.BG

Bulgarian company registry with company, person, financial, contact-presence, and relationship data through the website and REST API

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-25T19:35:02.797Z. Cached copy · Source on companybook.bg

# CompanyBook.BG

> Bulgarian company registry with company, person, financial, contact-presence, and relationship data through the website and REST API

CompanyBook.BG is a searchable database of Bulgarian companies and people, sourced from the official Bulgarian Trade Register. The public website supports regular search for companies and people. Customer API access requires an API key.

## API Documentation

- [Full API Documentation](https://companybook.bg/api-docs): Complete reference for endpoints, parameters, access tiers, and response formats
- [Full LLMs File](https://companybook.bg/llms-full.txt): Expanded reference with examples and request/response bodies

## Access Tiers

### No registration
- Public website regular company and people search
- Company and person detail pages
- Free tools such as VIES checks and calculators

### Free account / free API key
- Customer API key from the account page
- 100 API requests per day
- Regular API search: company search by UIC/name/district/legal form/status/VAT/NKID/contact presence, people search, and unified search
- Financial data API for older fiscal years, limited to 30 distinct company-and-year combinations per day

### Pro subscription / paid API key
- Two plans with the same features and different daily limits:
  - Pro (annual), €249.99/year + VAT: 3,000 API requests per day, 300 distinct company-and-year combinations of financial data per day, Excel exports of up to 2,000 companies per day
  - Pro Lite (monthly), €29.99/month + VAT: 1,000 API requests per day, 100 distinct company-and-year combinations of financial data per day, 30 Excel exports per month (up to 1,000 companies per day)
- Pro company search controls: financial-data availability, revenue buckets, registration year/date filters, and financial sorting
- Financial data for every available fiscal year, including the most recent paid years, within the plan's daily company-and-year allowance
- Website features such as larger exports, company lists, higher tracking limits, and Pro bankruptcy data

## Authentication

Customer API requests require a valid API key passed via the `X-API-Key` HTTP header.

1. Register for free at [companybook.bg/sign-up](https://companybook.bg/sign-up)
2. Get your API key from your account page

```
X-API-Key: your_api_key_here
```

## Main API Endpoints

### Companies
- GET /api/companies/:uic - Get company by UIC. Requires any valid API key.
- GET /api/v2/companies/search - Search companies. Regular parameters work with any valid API key; Pro filters and sorting require a paid API key.
- GET /api/companies/:uic/financial?year=YYYY - Get company financial data for one fiscal year. The `year` query parameter is required and the response contains only that year. Free keys receive older-year access; paid keys receive access to every available year. Metered as distinct company-and-year combinations per day; repeats of the same company-and-year on the same day are free.
- GET /api/companies/:uic/downloa
…

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Machine-readable: GET /v1/resolve?q=companybook.bg · GET /v1/domain/companybook.bg · this page as Accept: application/json or text/markdown · MCP lookup_domain

Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.

Claim my listing on Agent Web Map for companybook.bg:
1. POST https://agentwebmap.com/v1/sites/companybook.bg/claims and keep claim_id and claim_secret private.
2. Publish the verification line "AgentWebMap verification: <token>" (token from step 1) in https://companybook.bg/llms.txt, or use the DNS, meta-tag or well-known method the response describes. This only verifies the listing; your website and domain remain yours.
3. POST https://agentwebmap.com/v1/sites/companybook.bg/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/companybook.bg).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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