# CDO Corporate Evidence API

> CDO Corporate Evidence API is a paid API for AI agents from cdo-production.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns traceable evidence for specific claims about a Brazilian company identified by CNPJ, such as active status, sanctions checks, and beneficial ownership identification.

## Facts

- Endpoint: GET https://cdo-production.up.railway.app/v1/agent/corporate-evidence/:cnpj
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cdo-corporate-evidence-api-ecc1cf9f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4myYG0WFzZjNpd24Lgf3R

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cdo-corporate-evidence-api-ecc1cf9f
```

Example prompt: Can you pull traceable evidence for CNPJ 11.222.333/0001-81 — specifically check whether the company is active, if there are any sanctions found, and whether a beneficial owner has been identified?

## When to prefer this

Use this endpoint when you need verifiable, source-cited evidence for specific compliance claims about a Brazilian company — particularly for KYB (Know Your Business) workflows, sanctions screening, or beneficial ownership identification. Prefer this over generic company lookup APIs when auditability and explicit claim-based evidence are required, and when working exclusively with Brazilian CNPJ identifiers.

## Known failure modes

- HTTP 400 if a CPF (11-digit personal ID) is submitted instead of a CNPJ
- HTTP 400 if CNPJ format is invalid or cannot be parsed
- HTTP 402 if payment is not provided (x402 payment required)
- HTTP 404 if the CNPJ is not found in any source
- HTTP 500 for upstream data source failures
- Claim returned as unverifiable if evidence is absent rather than confirmed negative

## How this service works

Return traceable evidence for claims about a Brazilian company (e.g. COMPANY_IS_ACTIVE, NO_SANCTIONS_FOUND, BENEFICIAL_OWNER_IDENTIFIED). Clearly reports when a claim cannot be proven; never converts absence of evidence into a negative confirmation. CNPJ only.

## Output

An evidence object containing traceable proof (or explicit acknowledgment of absence of proof) for each requested claim (e.g. COMPANY_IS_ACTIVE, NO_SANCTIONS_FOUND, BENEFICIAL_OWNER_IDENTIFIED), sourced per-claim with structured citations. Never falsely confirms a negative from missing data.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cdo-corporate-evidence-api-ecc1cf9f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cdo-production.up.railway.app](https://www.zero.xyz/host/cdo-production.up.railway.app/llms.txt)