AINumbers.co Reg Bi API
The reg-bi API from AINumbers.co — 2 operation(s) for reg-bi.
Work with this as data
Every API here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for apis
7 MCP tools reach this
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/ainumbers-co:ainumbers-co-reg-bi-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
OpenAPI Specification
openapi: 3.2.0
info:
title: AINumbers.co Fintech Intelligence Suite Reg Bi API
version: 1.0.0
description: '**1255 fintech intelligence tools** covering ISO 20022, A2A payments, CFPB §1033, EU AI Act, DORA, MiCA, AML/KYC, BaaS, DLT/tokenization, ESG/climate finance, agentic payments (AP2, ACP, x402, Visa TAP, Mastercard Agent Pay), PQC migration, sanctions screening, and OpenChainGraph v0.4 computation chains.
## Transport
> **The live transport is MCP JSON-RPC 2.0 at `https://mcp.ainumbers.co/mcp` — not REST.**
>
> This OpenAPI file is a **descriptive data-room artifact** — a machine-readable index of all tools and their input/output schemas. The REST paths (`POST /v1/tools/{name}`) described here are a projection; they become functional only if the optional REST shim (Area 2 Path B) is deployed.
>
> To call tools today, connect via the official MCP client SDKs. TypeScript: `@modelcontextprotocol/sdk`. Python: `mcp`.
## Architecture
All tools run **entirely client-side** (browser JavaScript). Zero PII. Zero server calls after page load. Deterministic, reproducible outputs. Licensed CC BY 4.0.
OpenChainGraph v0.4 compute-binding nodes additionally run **server-side on the MCP Worker** and emit verifiable artifacts with `execution_hash` (WebCrypto SHA-256 over RFC 8785 canonical JSON).'
contact:
name: Post Oak Labs
url: https://postoaklabs.com
email: tim@postoaklabs.com
license:
name: CC BY 4.0
url: https://creativecommons.org/licenses/by/4.0/
servers:
- url: https://ainumbers.co
description: Static browser-based tool host (DreamHost). Tools run client-side — no REST gateway is active on this origin. See x-mcp for the live MCP endpoint.
tags:
- name: reg-bi
paths:
/v1/tools/reg_bi_best_interest_checker:
post:
operationId: reg_bi_best_interest_checker
summary: Reg BI Best-Interest Checker
description: 'Assess a securities recommendation against SEC Regulation Best Interest''s four component obligations (Disclosure, Care, Conflict of Interest, Compliance). Returns per-obligation PASS/GAP determination, overall best-interest verdict, and ordered remediation list. Deterministic. US broker-dealer scope. 2026 FINRA enforcement priority.
**Tool URL:** https://ainumbers.co/tools/463-reg-bi-best-interest-checker.html
**AP2/Policy Mandate export:** yes'
tags:
- reg-bi
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
recommendation_type:
type: string
enum:
- security_transaction
- investment_strategy
- account_type
- rollover
- margin
description: Type of recommendation being assessed
retail_customer:
type: boolean
description: True if the recommendation is made to a retail customer (required for Reg BI scope)
reasonably_available_alternatives_considered:
type: integer
minimum: 0
description: Number of reasonably available alternatives considered before making the recommendation
total_cost_bps:
type: number
description: Total cost to the retail customer in basis points
lower_cost_alternative_exists:
type: boolean
description: True if a lower-cost alternative was identified in the considered set
conflicts_disclosed:
type: boolean
description: True if material conflicts of interest were disclosed in writing
conflicts_mitigated:
type: boolean
description: True if conflicts of interest were mitigated or eliminated through written policies
form_crs_delivered:
type: boolean
description: True if Form CRS was delivered to the retail customer at or before the recommendation
rationale_documented:
type: boolean
description: True if the recommendation rationale (basis for best interest) was documented
compliance_program_in_place:
type: boolean
description: True if a written compliance program reasonably designed to achieve Reg BI compliance is in place
required:
- recommendation_type
- retail_customer
responses:
'200':
description: Successful tool execution result
content:
application/json:
schema:
type: object
properties:
verdict:
type: string
enum:
- BEST_INTEREST_MET
- ATTENTION
- NOT_MET
- OUT_OF_SCOPE
verdict_label:
type: string
obligations:
type: array
items:
type: object
properties:
obligation:
type: string
citation:
type: string
status:
type: string
enum:
- PASS
- GAP
gaps:
type: array
detail:
type: string
remediation:
type: array
items:
type: string
x-mcp-tool-name: reg_bi_best_interest_checker
x-tool-url: https://ainumbers.co/tools/463-reg-bi-best-interest-checker.html
x-source: manifest
x-ap2-export: true
/v1/tools/form_crs_generator:
post:
operationId: form_crs_generator
summary: Form CRS Generator
description: 'Generate a Form CRS (Customer Relationship Summary) using SEC-prescribed headings and verbatim conversation-starter questions. Checks format compliance (estimated page count vs. SEC 2-page limit for BD/IA, 4-page limit for dual registrants). The Reg BI disclosure artifact required before or at the time of every retail investor recommendation. Markdown export IS the deliverable. Client-side. Works offline. Zero PII.
**Tool URL:** https://ainumbers.co/tools/464-form-crs-generator.html
**AP2/Policy Mandate export:** yes'
tags:
- reg-bi
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
firm_type:
type: string
enum:
- broker_dealer
- investment_adviser
- dual_registrant
description: Type of registered firm
fee_model:
type: string
enum:
- commission
- aum_fee
- wrap_fee
- hourly
- flat
- mixed
description: Primary fee model
services_offered:
type: array
items:
type: string
description: List of investment services offered to retail investors
account_minimums:
type: string
description: Account minimum requirements
monitoring_offered:
type: boolean
description: True if ongoing account monitoring is offered
discretionary_authority:
type: boolean
description: True if the firm exercises discretionary authority
material_conflicts:
type: array
items:
type: string
description: List of material conflicts of interest to disclose
disciplinary_history:
type: boolean
description: True if the firm or its professionals have legal or disciplinary history
required:
- firm_type
- fee_model
responses:
'200':
description: Successful tool execution result
content:
application/json:
schema:
type: object
properties:
sections:
type: array
items:
type: object
properties:
heading:
type: string
question:
type: string
body:
type: string
format_ok:
type: boolean
estimated_pages:
type: number
max_pages:
type: integer
conversation_starters:
type: array
items:
type: string
x-mcp-tool-name: form_crs_generator
x-tool-url: https://ainumbers.co/tools/464-form-crs-generator.html
x-source: manifest
x-ap2-export: true
x-mcp:
transport: MCP JSON-RPC 2.0 (streamable HTTP)
endpoint: https://mcp.ainumbers.co/mcp
protocol_version: '2025-11-25'
authentication: none
registry: co.ainumbers/tools (official MCP registry)
note: Connect any MCP-compatible client (Claude, ChatGPT, custom agent) directly to this endpoint. The REST paths in this file are descriptive only — they do not exist on the live server unless the REST shim is deployed.