---
title: "Agentic Payments Protocol Comparator & Field Crosswalk"
method: POST
path: "/v1/tools/compare_agentic_payment_protocols"
tags: ["agentic payments", "AP2", "ACP", "x402", "Visa Trusted Agent Protocol", "Mastercard Agent Pay", "comparator"]
---

# Agentic Payments Protocol Comparator & Field Crosswalk

`POST /v1/tools/compare_agentic_payment_protocols`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/compare_agentic_payment_protocols`
- Auth: none declared

Compares AP2, the Agentic Commerce Protocol (Shared Payment Token), x402, Visa Trusted Agent Protocol, and Mastercard Agent Pay across credential model, signing, scope binding, settlement rail, identity substrate, and audit trail, with a field crosswalk and a scenario-based recommender. Reference data is a static June 2026 snapshot and may age — verify against each protocol's primary spec.

**Tool URL:** https://ainumbers.co/tools/276-agentic-payments-protocol-comparator.html
**AP2/Policy Mandate export:** yes

## Request body

- object
  - `protocols` string[]: Subset of protocol ids to compare.
  - `scenario` string: Optional scenario id for a recommendation.

## Response `200`

Successful tool execution result

- object
  - `matrix` unknown[]
    - unknown
  - `crosswalk` unknown[]
    - unknown
  - `recommendation` string

---

[API](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite.md) · [All operations](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/llms.txt) · [OpenAPI document](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/revisions/b462e4f5bb28?raw)