# AUX Evidence and Certification API

**Canonical:** https://apis.io/apis/prdictionedge-ai/aux-evidence-and-certification-api/  
**Provider:** AUX by PrdictionEdge — https://apis.io/providers/prdictionedge-ai/  
**Base URL:** https://api.aux.prdictionedge.ai  
**Documentation:** https://aux.prdictionedge.ai/agents

AUX Evidence and Certification API is one of 2 APIs that [AUX by PrdictionEdge](https://apis.io/providers/prdictionedge-ai/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Counterparty Verification, Sanctions Screening, Legal Entity Identifier, Know Your Business, and Signed Receipts. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, and authentication docs.

REST API (23 operations, OpenAPI 3.1) for durable business-counterparty certification attempts, evidence resolution (GLEIF business identity, OFAC sanctions, RDAP domain identity, private-source attestations), certification profiles and requirements, signed-receipt verification, downstream policy checks, and signed non-executing agent-to-agent handoffs with single-use consumption. Public profiles need no API key; the handoff-consumption endpoint authenticates the recipient with a domain-published ES256 JWS assertion.

## Operations (23)

| Method | Path | Summary |
|---|---|---|
| GET | `/.well-known/agent-card.json` | Discover the AUX A2A v1.0 interface and bounded skills |
| POST | `/v1/evidence/sanctions` | Independently screen a submitted legal name against official OFAC SDN and consolidated primary/alias files and issue a signed evidence bundle |
| POST | `/v1/evidence/domain-identity` | Resolve registered-domain evidence through IANA RDAP plus a domain-controlled AUX identity document |
| GET | `/v1/evidence/source-attestation` | Get the trust-document and signed-attestation contract for private evidence sources |
| POST | `/v1/evidence/source-attestation` | Resolve a source-domain trust document and verify a signed private-source evidence attestation |
| POST | `/v1/evidence/business-identity` | Independently resolve a legal entity against live GLEIF data and issue a signed evidence bundle when identity is exact and current |
| POST | `/v1/evidence/verify` | Verify a signed AUX independent-evidence bundle |
| GET | `/v1/certification-profiles` | Discover every live AUX certification profile and its bounded requirement set |
| POST | `/v1/certification-attempts` | Create or reuse a durable certification attempt that automatically retries temporary evidence-source failures |
| GET | `/v1/certification-attempts/{attempt_id}` | Read the current durable certification attempt state without resubmitting the transaction |
| POST | `/v1/certifications` | Attempt bounded AUX independent certification for the selected live profile using caller data, public reference sources, and verified private-source attestat... |
| POST | `/v1/certifications/verify` | Verify an AUX certification signature and evidence/requirements commitments |
| GET | `/v1/certifications/policy-check` | Get the downstream acceptance-policy contract for portable AUX certifications |
| POST | `/v1/certifications/policy-check` | Verify a signed AUX certification and evaluate it against a downstream consumer policy without executing an action |
| GET | `/v1/certifications/domain-policy-check` | Get the domain-resolved consumer-policy interoperability contract |
| POST | `/v1/certifications/domain-policy-check` | Resolve a consumer's published AUX acceptance policy from its HTTPS domain and evaluate a signed AUX certification without executing an action |
| POST | `/v1/certification-handoffs` | Create a signed non-executing agent-to-agent handoff after a valid AUX certification is accepted by the independently resolved recipient-domain policy |
| POST | `/v1/certification-handoffs/verify` | Verify a signed AUX agent-to-agent handoff, expiry, commitments, and optional expected sender/recipient/action/nonce bindings |
| GET | `/v1/certification-handoffs/consume` | Get the authenticated single-use handoff consumption contract |
| POST | `/v1/certification-handoffs/consume` | Authenticate the intended recipient and atomically consume a verified AUX handoff once without executing its action |
| POST | `/v1/certification-handoffs/consume/verify` | Verify a signed AUX handoff-consumption receipt and its non-execution boundary |
| GET | `/v1/certification-requirements` | List the evidence contract required for the selected AUX certification profile |
| POST | `/v1/certification-requirements` | Return profile-specific certification gaps and exact next actions |

## Machine-readable artifacts (14)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/openapi/prdictionedge-ai-openapi.yml
- **OpenAPI** — https://api.aux.prdictionedge.ai/openapi.json
- **Documentation** — https://aux.prdictionedge.ai/agents
- **APIReference** — https://api.aux.prdictionedge.ai/
- **GettingStarted** — https://aux.prdictionedge.ai/agents/quickstart
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/authentication/prdictionedge-ai-authentication.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/conventions/prdictionedge-ai-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/errors/prdictionedge-ai-problem-types.yml
- **DataModel** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/data-model/prdictionedge-ai-data-model.yml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/overlays/prdictionedge-ai-openapi-overlay.yaml
- **Sandbox** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/sandbox/prdictionedge-ai-sandbox.yml
- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/mcp/prdictionedge-ai-mcp.yml
- **ToolCrosswalk** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/mcp/prdictionedge-ai-tool-crosswalk.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/prdictionedge-ai/refs/heads/main/apis.yml

## Other AUX by PrdictionEdge APIs (1)

- [AUX A2A Agent (JSON-RPC)](https://apis.io/apis/prdictionedge-ai/aux-a2a-agent-json-rpc/)

## Tags

Counterparty Verification, Sanctions Screening, Legal Entity Identifier, Know Your Business, Signed Receipts, Agent Infrastructure

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