A side-by-side look at the Brightdata MCP and Cryptair MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Brightdata MCP for developer tools work as a local process; choose Cryptair MCP Server for developer tools as a local process. You can also run both side by side in one mcpServers block.
API_TOKEN.search_engine, scrape_as_markdown, search_engine_batch.certify_document, verify_document, initiate_attestation.Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Developer Tools | Developer Tools |
| Quality signal | 71/100 · Great | 56/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | API_TOKEN | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 2,661 | 0 |
| Directory activity | 2 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | 11 | 6 |
| Full listing | View Brightdata MCP | View Cryptair MCP Server |
search_engineScrape search results from Google, Bing or Yandex. Returns SERP results in JSON or Markdown (URL, title, description),Ideal forgathering current information, news, and detailed search results.scrape_as_markdownScrape a single webpage URL with advanced options for content extraction and get back the results in MarkDown language. This tool can unlock any webpage even if it uses bot detection or CAPTCHA.search_engine_batchRun multiple search queries simultaneously. Returns JSON for Google, Markdown for Bing/Yandex.scrape_batchScrape multiple webpages URLs with advanced options for content extraction and get back the results in MarkDown language. This tool can unlock any webpage even if it uses bot detection or CAPTCHA.discoverSearch the web and rank results by AI-driven relevance. Returns scored results with title, description, and URL. Supports intent-based ranking, geo-targeting, date filtering, and keyword filtering.search_scrapersFind a Bright Data pre-built scraper (Web Scraper API, 1,200+ sites) for a site or data type, e.g. "amazon reviews" or "linkedin.com". Returns dataset_id, name, domain and collection_methods. Next: call get_scraper_details with a dataset_id and one method.get_scraper_detailsShow the scraper description, input fields, example input and main output fields for one method. Call before run_scraper and build the input from sample_input or input_fields. Records may contain more fields than output_fields lists.run_scraperRun a scraper method. input is a list of objects shaped like sample_input from get_scraper_details, one per URL or query. collect_by_url returns one record per input; discover_by_* methods return up to limit_per_input records per input, and every record is billed. Waits up to 45 seconds; if still running it returns snapshot_id with status "running": then poll get_scraper_progress and call get_scraper_results when ready. Records with an "error" field explain failed inputs.get_scraper_progressStatus of a run: starting, running, ready, failed or canceled.get_scraper_resultsRecords of a finished run. Returns status "running" if not ready yet.refresh_scrapersReload the scraper list now instead of waiting for the daily refresh.certify_documentCreate a tamper-evident, on-chain proof that a document exists in this exact state right now.
USE WHEN you want to:
- Lock in a contract, proposal, or agreement at a specific moment
- Prove a deliverable existed before a deadline
- Anchor a code commit, report, or any digital artifact to an immutable timestamp
- Generate a receipt that anyone can verify (no Cryptair account required to verify)
This is a SINGLE-PARTY operation. It writes a SHA-256 hash of the file to Hedera Hashgraph.
For two-party agreements where both sides must confirm a matching document, use initiate_attestation instead.
Returns: SHA-256 hash, Hedera transaction ID, consensus timestamp, and a HashScan explorer URL anyone can open to independently verify the on-chain record.
Requires a Cryptair API key. If none is configured, call register_agent first.verify_documentCheck whether a document has a prior Cryptair attestation on Hedera Hashgraph.
USE WHEN you want to:
- Confirm a counterparty's claim that a document was certified
- Detect whether a file has been altered since it was attested
- Look up the original Hedera transaction for a given file
This is PUBLIC — no API key required. Anyone can verify any document.
Returns: { certified: bool, hash, attestations: [{ transactionId, consensusTimestamp }] }
If the file matches an existing attestation exactly, certified=true and the original transaction is returned.
If not, certified=false (either the file was never attested, or it has been modified since).initiate_attestationStart a TWO-PARTY attestation. Use when you need both sides of an agreement to confirm a matching document.
USE WHEN you want to:
- Get a counterparty (another agent or a human) to formally acknowledge receipt of a contract, proposal, or deliverable
- Lock in a mutual agreement that's only valid if both sides see the same content
- Create an audit-grade record that two parties agreed on this exact document
How it works:
1. You initiate with a document hash. Cryptair returns a shareable URL.
2. You send the URL to your counterparty (out of band — email, Slack, etc.).
3. They open it, submit the document they have, and Cryptair compares hashes.
4. If hashes match: certified on Hedera. If not: tamper recorded on Hedera.
5. The counterparty does NOT need a Cryptair account. They can complete for free.
Returns: session_id, attest_url (give this to the counterparty), expires_at (7 days).
Poll with check_attestation to see when the counterparty completes.
Requires a Cryptair API key. Call register_agent first if you don't have one.submit_attestationPaste 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.
{
"mcpServers": {
"brightdata-mcp": {
"command": "npx",
"args": [
"-y",
"@brightdata/mcp"
],
"env": {
"API_TOKEN": "YOUR_API_TOKEN_HERE"
}
}
}
}
{
"mcpServers": {
"cryptair-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cryptair/mcp-server"
]
}
}
}
check_attestationLook up the current status of an attestation session.
USE WHEN you want to:
- Poll whether the counterparty has completed an attestation you initiated
- Retrieve the certificate URL after certification
- Check whether a session has expired or been tampered
Returns: { status: 'pending' | 'certified' | 'tampered', hedera_tx, certificate_url, expires_at, ... }
This endpoint is public — no API key required.register_agentCreate a Cryptair account for this agent and store the API key locally so future tool calls are authenticated.
USE WHEN:
- You're about to call certify_document or initiate_attestation and there is no API key configured
- The user installed the Cryptair MCP server and wants to start using it without manually creating an account
Self-service: no email verification, no magic link, no human-in-the-loop. The API key is generated immediately and persisted to ~/.cryptair/credentials.json. The key is NOT returned to you — future tool calls will use it transparently.
Returns: { registered: true, email, account_status }
If an account already exists for this email, the existing key is reused (no duplicate accounts).