---
title: "Agentic Payments Protocol Comparator"
method: POST
path: "/v1/tools/compare_agentic_rail_protocols"
tags: ["TODO_TAGS_REVIEW", "TODO_AP2_EXPORT_REVIEW"]
---

# Agentic Payments Protocol Comparator

`POST /v1/tools/compare_agentic_rail_protocols`

## Request

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

Compares AP2, ACP, x402, Visa TAP, Mastercard Agentic Token, and Tempo MPP (Machine Payments Protocol) across 8 dimensions (backer, artifact, signing, scope, rail, identity, audit, status) and 6 agentic scenarios. Root node of the Agentic Rail Chain: routing_policy output determines Branch A (AP2/card) or Branch B (A2A/x402). Promoted from T276.

**Tool URL:** https://ainumbers.co/chaingraph/art-22-agentic-payments-protocol-comparator.html

## Request body

- object
  - `protocols` unknown[], required
    - unknown
  - `scenario` unknown

## Response `200`

Successful tool execution result

- object
  - `crosswalk` object[]
    - `concept` string
    - `values` object
      - `acp` string
      - `ap2` string
  - `note` string
  - `protocol_names` string[]
  - `protocols_compared` string[]
  - `protocols_detail` object[]
    - `artifact` string
    - `audit` string
    - `backer` string
    - `id` string
    - `identity` string
    - `name` string
    - `rail` string
    - `scope` string
    - `signed` string
    - `status` string
    - `sub` string
  - `recommendation` object
    - `also_consider` string[]
    - `also_names` string[]
    - `primary_names` string[]
    - `primary_pick` string[]
    - `rationale` string
  - `scenario` 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)