radar-cnpj
connectsradar-cnpj.com
Brazilian company registry (Receita): CNPJ lookup, CNAE search, idea evaluation, monitoring.
https://radar-cnpj.com/mcpWebsiteOAuthMCP 2025-06-18v0a40943clast checked 20 Oct 2026spoke MCP on 100% of 84 checks (30 days)initialize in 864 msWill my client connect?
Decided from what the probe found at the endpoint, and from what each client's own documentation says it can complete. Every row carries the day that documentation was read.
✓Claude CodeConnects
The authorization server advertises RFC 7591 registration, so Claude Code can register itself and sign you in through the browser.
claude mcp add --transport http radar-cnpj https://radar-cnpj.com/mcpClaude Code docs · read on 2026-08-30
✓Claude (claude.ai & Desktop)Connects
The authorization server advertises RFC 7591 registration, so Claude (claude.ai & Desktop) can register itself and sign you in through the browser.
Settings → Connectors → Add custom connector, then paste https://radar-cnpj.com/mcp.
Claude (claude.ai & Desktop) docs · read on 2026-08-30
✓ChatGPTConnects
The authorization server advertises RFC 7591 registration, so ChatGPT can register itself and sign you in through the browser.
Settings → Apps → Advanced settings → Developer mode, then create a connector pointing at https://radar-cnpj.com/mcp.
ChatGPT docs · read on 2026-08-30
✓CursorConnects
The authorization server advertises RFC 7591 registration, so Cursor can register itself and sign you in through the browser.
{
"mcpServers": {
"radar-cnpj": {
"url": "https://radar-cnpj.com/mcp"
}
}
}Cursor docs · read on 2026-08-30
✓VS Code (Copilot)Connects
The authorization server advertises RFC 7591 registration, so VS Code (Copilot) can register itself and sign you in through the browser.
{
"servers": {
"radar-cnpj": {
"type": "http",
"url": "https://radar-cnpj.com/mcp"
}
}
}VS Code (Copilot) docs · read on 2026-08-30
How to authenticate
Checked against the endpoint by our probe on 20 Oct 2026. These are the capabilities the server advertises, not a prediction about any particular client.
| Scheme | OAuth |
|---|---|
| Issuer | https://radar-cnpj.com |
| Dynamic client registration | ✓Advertised (RFC 7591) |
| Client ID Metadata Document | ✓Supported A client identifies itself by a URL to its own metadata, so no registration step is required. |
| PKCE | ✓S256 |
| Grant types | authorization_code, refresh_token |
| Scopes | mcp |
| Protected-resource metadata | ✓Published (RFC 9728) |
| Anonymous access | Handshake succeeds; 16 tools listable |
| Documentation | https://radar-cnpj.com/llms.txt |
What the probe found
The server exposes a public surface before authorization: search_construction, api_index, health, get_cnpj, search, suggest, ref, avaliar, ia_filters, local, contact, consulta_cadastro, consulta_endereco, consulta_sugerir, consulta_cnpj, consulta_cep.
Tools
Contract history
Instructions rewritten: get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_cnpj, get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: api_index, avaliar, consulta_cadastro, consulta_cep, consulta_cnpj, consulta_endereco, consulta_sugerir, contact, get_cnpj, health, ia_filters, local, ref, search, suggest. The description an agent follows changed; the callable contract may not have.
Breaking: add_watch, api_access, api_access_buy, billing, consulta_comprar, consulta_lote, consulta_planos, dossier_cnpj, list_watches, pricing, reveal_cnpj
Instructions rewritten: api_index, avaliar, consulta_cadastro, consulta_cep, consulta_cnpj, consulta_endereco, consulta_sugerir, contact, get_cnpj, health, ia_filters, local, ref, search, suggest. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_comprar, consulta_lote, consulta_planos, dossier_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_comprar. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: dossier_cnpj, reveal_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: add_watch, get_cnpj, list_watches, reveal_cnpj, search, suggest. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_cnpj, consulta_lote. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_cnpj, consulta_lote, get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_cnpj, consulta_lote, get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_cnpj. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: consulta_cnpj, get_cnpj. The description an agent follows changed; the callable contract may not have.
Breaking: contact
Instructions rewritten: add_watch, api_access_buy, api_index, avaliar, contact, get_cnpj, health, ia_filters, list_watches, local, ref, reveal_cnpj, search, suggest. The description an agent follows changed; the callable contract may not have.
Breaking: add_watch, list_watches, monitor_session
Instructions rewritten: add_watch, get_cnpj, list_watches, search. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: avaliar. The description an agent follows changed; the callable contract may not have.
Breaking: ref
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Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.
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