> ## Documentation Index
> Fetch the complete documentation index at: https://docs.x84.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Get health



## OpenAPI

````yaml https://facilitator.x84.ai/openapi.yaml get /health
openapi: 3.0.0
info:
  title: x84 Facilitator
  description: >-
    ## x402 v2 Payment Facilitator


    The x84 Facilitator verifies and settles USDC payments on Solana following
    the [Coinbase x402 v2 protocol](https://github.com/coinbase/x402).


    ### Endpoints


    | Method | Path | Description |

    |--------|------|-------------|

    | `GET` | `/supported` | Discover supported payment kinds, extensions, and
    signer keys |

    | `POST` | `/verify` | Verify a payment payload (deserialize tx, validate
    instructions) |

    | `POST` | `/settle` | Co-sign as fee payer and submit to Solana |


    ### x84 Extensions


    On top of standard x402 SVM exact payments, the facilitator supports
    x84-specific settlement modes via the `extensions` field:


    - **x84-atomic** — CPI receipt on-chain (tx already submitted by client)

    - **x84-attestation** — Attestation receipt on-chain

    - **x84-delegated** — Delegation-based vault settlement (client-side or
    server-side with ed25519 proof)


    ### v1 Backward Compatibility


    The `paymentPayload` field accepts both:

    - **v2 (recommended)**: Structured `PaymentPayload` object with
    `x402Version`, `accepted`, `payload`, and optional `extensions`

    - **v1 (legacy)**: Base64-encoded JSON string (automatically normalized to
    v2 internally)
  version: 0.2.0
  contact: {}
servers:
  - url: https://facilitator.x84.ai
    description: Endpoint
security: []
tags:
  - name: x402
    description: x402 v2 payment verification and settlement
externalDocs:
  description: x402 Protocol Specification
  url: https://github.com/coinbase/x402
paths:
  /health:
    get:
      tags:
        - Health
      operationId: HealthController_check
      parameters: []
      responses:
        '200':
          description: ''

````