---
title: "B2B Micro-Clearinghouse"
method: POST
path: "/v1/tools/b2b_micro_clearinghouse"
tags: ["micro-payment", "M2M", "agentic", "AP2", "x402", "clearinghouse", "BaaS", "protocol", "workflow"]
---

# B2B Micro-Clearinghouse

`POST /v1/tools/b2b_micro_clearinghouse`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/b2b_micro_clearinghouse`
- Auth: none declared

Three-stage autonomous B2B SaaS procurement and micro-metered clearinghouse: protocol arbitrage (T276), cart mandate cap compilation (T285), policy budget envelope validation (T320). Solves the interchange-floor gap for agentic sub-dollar M2M transactions.

**Tool URL:** https://ainumbers.co/tools/479-b2b-micro-clearinghouse.html
**AP2/Policy Mandate export:** yes

## Request body

- object
  - `scenario` string, required: Payment scenario description
  - `max_amount_usd` number: Maximum transaction amount in USD (e.g. 0.04)
  - `preferred_protocol` string: Preferred protocol hint: ap2 | x402 | visa_tap | mastercard

## Response `200`

Successful tool execution result

- object: Tool execution result payload

---

[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)