---
title: "A2A Fee Benchmarking Report Builder"
method: POST
path: "/v1/tools/build_fee_benchmark_report"
tags: ["fee", "benchmark", "A2A", "FedNow", "RTP", "SEPA", "cost analysis", "report"]
---

# A2A Fee Benchmarking Report Builder

`POST /v1/tools/build_fee_benchmark_report`

## Request

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

Benchmarks current payment costs against A2A rail alternatives (FedNow, RTP, SEPA Instant, Faster Payments). Generates a narrative benchmark report with savings waterfall, rail comparison table, and executive summary.

**Tool URL:** https://ainumbers.co/tools/12-fee-benchmark-report.html
**AP2/Policy Mandate export:** yes

## Request body

- object
  - `currentRail` string, required
  - `annualVolume` number, required
  - `avgTransaction` number, required
  - `currentRate` number

## Response `200`

Successful tool execution result

- object
  - `current_annual_cost` number
  - `best_rail` string
  - `best_annual_cost` number
  - `max_annual_saving` number
  - `report_generated` boolean

---

[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)