# Cyphrex API API

**Canonical:** https://apis.io/apis/cyphrex-io/cyphrex-api-api/  
**Provider:** Cyphrex — https://apis.io/providers/cyphrex-io/  
**Base URL:** https://cyphrexapi-production.up.railway.app  
**Documentation:** https://cyphrex.io/llms.txt

Cyphrex API API is one of 2 APIs that [Cyphrex](https://apis.io/providers/cyphrex-io/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. The published artifact set on APIs.io includes an OpenAPI specification.

Public integration surface: POST /v1/check and the MCP agent routes (API key), and verification routes (no auth). Dashboard JWT routes are not in this document. Official SDK package name is cyphrex on npm and PyPI. There is no public SDK repository.

## Operations (11)

| Method | Path | Summary |
|---|---|---|
| POST | `/v1/check` | Check whether an agent action is allowed |
| POST | `/v1/mcp/agents` | Register an agent |
| POST | `/v1/mcp/agents/{id}/check` | Check whether an agent action is allowed |
| GET | `/v1/mcp/agents/{id}/audit-log` | Audit log for one agent |
| GET | `/v1/keys` | Published signing-key registry |
| GET | `/v1/keys/{keyId}` | Ed25519 public key PEM |
| GET | `/v1/verify/{ssn}` | Public agent identity lookup |
| POST | `/v1/inclusion/verify` | Public Merkle inclusion check |
| GET | `/v1/reports/{id}/public` | Opted-in signed report JSON |
| GET | `/v1/reports/by-pdf-sha256/{sha256}` | Signed JSON bound to a PDF SHA-256 |
| POST | `/v1/solana/verify` | Confirm an anchor transaction references a report hash |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/cyphrex-io/openapi/_original/cyphrex-io-api-openapi.json

## Other Cyphrex APIs (1)

- [Cyphrex API](https://apis.io/apis/cyphrex-io/cyphrex-api/)

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cyphrex-io/cyphrex-api-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cyphrex-io/.