AINumbers.co Equity API
The equity API from AINumbers.co — 1 operation(s) for equity.
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OpenAPI Specification
openapi: 3.2.0
info:
title: AINumbers.co Fintech Intelligence Suite Equity 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: equity
paths:
/v1/tools/calc_equity_exit_waterfall:
post:
operationId: calc_equity_exit_waterfall
summary: Equity Exit Waterfall Modeler
description: 'Equity exit proceeds after a liquidation-preference waterfall for startup employees and founders: the preference stack layer by layer, non-participating conversion or capped participation, the common pool, your gross and net proceeds after option strike, taxable gain per IRC §1001 and the break-even exit valuation. Port of Apex #141 (al_id AL-148). Port of ApexLogics tool 141-equity-exit-waterfall (https://apexlogics.org/tools/141-equity-exit-waterfall/ fetched 2026-10-06, AL-148), tasking APEXPORT-141 (GRADES PASS-PENDING-XV 2026-10-07, Builder-verifies-at-land 18/18 vectors re-executed 2026-10-21), landed by APEX-PORT-141-LAND-1.
**Tool URL:** https://ainumbers.co/chaingraph/art-754-equity-exit-waterfall.html
**AP2/Policy Mandate export:** yes'
tags:
- equity
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- exit_valuation_usd
- total_preferred_invested_usd
- preferred_ownership_pct
- liquidation_preference_multiple
- participation_type
- participation_cap_multiple
- your_role
- your_ownership_pct
- your_option_strike_total_usd
- your_cost_basis_usd
properties:
exit_valuation_usd:
type: number
description: Total exit valuation in USD. Must be positive.
total_preferred_invested_usd:
type: number
description: Aggregate liquidation preference amount (total preferred invested) in USD.
preferred_ownership_pct:
type: number
description: Preferred ownership percentage (fully-diluted), 0-100.
liquidation_preference_multiple:
type: number
description: Liquidation preference multiple (e.g., 1, 1.5, 2, 3).
participation_type:
type: string
description: 'Participation type: ''non'', ''full'', or ''capped''.'
enum:
- non
- full
- capped
participation_cap_multiple:
type: number
description: Participation cap as multiple of invested (e.g., 3 means 3x invested).
your_role:
type: string
description: 'Your role: ''common'', ''founder'', ''employee'', or ''preferred''.'
enum:
- common
- founder
- employee
- preferred
your_ownership_pct:
type: number
description: Your ownership percentage (fully-diluted), 0-100.
your_option_strike_total_usd:
type: number
description: Total option exercise cost in USD. Enter 0 for RSAs or vested stock.
your_cost_basis_usd:
type: number
description: Your cost basis for tax gain calculation in USD.
responses:
'200':
description: Successful tool execution result
content:
application/json:
schema:
type: object
properties:
break_even_exit_usd:
type:
- number
- 'null'
common_pool_usd:
type:
- number
- 'null'
compliance_flags:
type: array
items:
type: string
exit_valuation_usd:
type: number
layers:
type:
- array
- 'null'
liquidation_preference_multiple:
type: number
liquidation_preference_usd:
type:
- number
- 'null'
notes:
type: array
items:
type: string
participation_cap_multiple:
type: number
participation_type:
type: string
enum:
- capped
- full
- non
preferred_ownership_fraction:
type: number
preferred_total_usd:
type:
- number
- 'null'
refusal_reason:
type:
- 'null'
- string
switches:
type: object
properties:
apex_faithful_mode:
type: boolean
pref_wins_warning_threshold:
type: number
refuse_non_finite_input:
type: boolean
required:
- apex_faithful_mode
- pref_wins_warning_threshold
- refuse_non_finite_input
additionalProperties: false
total_preferred_invested_usd:
type: number
warnings:
type: array
items:
type: string
your_cost_basis_usd:
type: number
your_gross_proceeds_usd:
type:
- number
- 'null'
your_net_proceeds_usd:
type:
- number
- 'null'
your_option_strike_total_usd:
type: number
your_ownership_fraction:
type: number
your_role:
type: string
enum:
- common
- employee
- preferred
your_taxable_gain_usd:
type:
- number
- 'null'
required:
- break_even_exit_usd
- common_pool_usd
- compliance_flags
- exit_valuation_usd
- layers
- liquidation_preference_multiple
- liquidation_preference_usd
- notes
- participation_cap_multiple
- participation_type
- preferred_ownership_fraction
- preferred_total_usd
- refusal_reason
- switches
- total_preferred_invested_usd
- warnings
- your_cost_basis_usd
- your_gross_proceeds_usd
- your_net_proceeds_usd
- your_option_strike_total_usd
- your_ownership_fraction
- your_role
- your_taxable_gain_usd
additionalProperties: false
x-derived-from: fixture
x-mcp-tool-name: calc_equity_exit_waterfall
x-tool-url: https://ainumbers.co/chaingraph/art-754-equity-exit-waterfall.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.