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

# Settle Payment

> Co-sign and broadcast a payment transaction.

Accepts x402 spec request format:
  - paymentPayload: base64-encoded PaymentPayload (PAYMENT-SIGNATURE header value)
  - paymentRequirements: PaymentRequirements object (from PAYMENT-REQUIRED header)

Also accepts legacy format:
  - payload: PaymentPayload JSON
  - raw_transaction: base64 partially-signed Solana VersionedTransaction

For EVM payments, triggers settlement via on_chain_settlement.settle_evm_payment.
Returns SettlementResponse-compatible JSON.



## OpenAPI

````yaml /api-reference/openapi.json post /x402/settle
openapi: 3.1.0
info:
  title: Limitguard.ai
  description: >-
    Lead validation API: the company behind each lead checked against the NL and
    BE business registers, EU VAT and sanctions lists, plus company, KYB and
    agent wallet checks for developers and AI agents
  version: 0.1.0
servers:
  - url: https://api.limitguard.ai
security: []
paths:
  /x402/settle:
    post:
      tags:
        - x402
      summary: Settle Payment
      description: >-
        Co-sign and broadcast a payment transaction.


        Accepts x402 spec request format:
          - paymentPayload: base64-encoded PaymentPayload (PAYMENT-SIGNATURE header value)
          - paymentRequirements: PaymentRequirements object (from PAYMENT-REQUIRED header)

        Also accepts legacy format:
          - payload: PaymentPayload JSON
          - raw_transaction: base64 partially-signed Solana VersionedTransaction

        For EVM payments, triggers settlement via
        on_chain_settlement.settle_evm_payment.

        Returns SettlementResponse-compatible JSON.
      operationId: settle_payment_x402_settle_post
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}

````

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