The Insumer Model™ Launches On-Chain Verification API and Custom GPT — Enabling AI Agents to Bridge Token Ownership to Real-World Commerce Across 31 Blockchains

New York, United States, February 25, 2026

InsumerAPI delivers privacy-preserving proof of token and NFT ownership at $0.04 per verification — with triple-SDK agent tooling (MCP, LangChain, GPT Actions) and zero blockchain knowledge required for merchants.

InsumerAPI Launches Privacy-Preserving On-Chain Verification for Token-Gated Commerce

The Insumer Model™, the infrastructure platform that turns token holders into recognized customers with real-world perks, today announced InsumerAPI — a RESTful on-chain verification API that delivers cryptographically signed boolean proofs of token and NFT ownership without ever exposing wallet addresses, balances, or transaction histories.

Built by Douglas Borthwick — a Wall Street veteran with 30+ years at Morgan Stanley, Merrill Lynch, and Standard Chartered, and a pioneer in SEC-registered security token offerings — InsumerAPI is the sixth application in a complete production ecosystem that already includes:

InsumerPass (customer verification)
InsumerScanner (merchant POS)
InsumerDashboard (business configuration)
InsumerRegistry (open token database)
InsumerExtension (Chrome browser integration)

What InsumerAPI Does

A single POST endpoint (/v1/attest) checks 1–10 conditions against a wallet across 31 blockchains and returns only signed booleans — met: true or met: false. The actual balance is never revealed.

Every response carries an ECDSA P-256 signature that downstream systems — AI agents, merchants, auditors — can verify offline without re-querying the blockchain or repeatedly trusting the service.

Merchant Economics

For merchants, the economics are decisive:

On-chain verification costs $0.02–$0.04 per scan
Compared to $1–$5+ per click on Google or Meta ads

Merchants onboard with zero blockchain knowledge, configure discount tiers through a dashboard or API, and integrate with existing payment processors such as:

Stripe
Square
Clover

Customers pay in dollars. Merchants receive dollars. Token ownership simply unlocks the discount.

The First Fully Autonomous Agent Commerce Loop

InsumerAPI is the only on-chain verification API where an AI agent can complete the entire merchant lifecycle autonomously — from API discovery to directory listing — with no human in the loop.

An agent can:

Read standard machine-readable files (llms.txt, OpenAPI spec, ai-plugin.json)
Create an API key
Browse the merchant directory
Verify token holdings
Generate signed discount codes
Onboard new merchants
Verify domain ownership
Purchase credits with USDC on supported chains
Publish to the public directory

Every step is authenticated and cryptographically signed.

Triple-SDK Agent Tooling

Three published SDKs support autonomous AI agent integration:

MCP Server

Published to npm (mcp-server-insumer)
Listed in the Official MCP Registry
16 tools covering all API endpoints

LangChain Integration

Published to PyPI (langchain-insumer v0.1.2)
Designed for Python AI agent frameworks
6 tools plus HTTP wrapper

GPT Actions

OpenAI function-calling integration via OpenAPI spec
InsumerAPI Verify is live in the ChatGPT GPT Store
Enables conversational verification of holdings for discounts or eligibility — no coding required

No other Web3 MCP server, LangChain package, or GPT action in the market focuses on token-gated commerce, merchant verification, or merchant onboarding. The triple-SDK offering is unique in the space.

Founder Quote

“The missing piece in token-gated commerce was never the blockchain — it was the bridge to the real world,” said Douglas Borthwick, Founder of The Insumer Model™.

“An AI agent can now go from zero to a fully onboarded, domain-verified, directory-listed merchant without a single human touching a keyboard. Meanwhile, a SHIB holder walks into a coffee shop that recognizes SHIB holders, taps their phone, and gets 10% off — without the merchant ever knowing details of their wallet other than that they own enough SHIB to meet a tier threshold. That’s the insumer economy.”

Pricing and Access

InsumerAPI offers:

Free Tier: 10 credits + 100 daily reads
Pay-Per-Use: $0.04 per credit via USDC
Pro Plan: $29/month (100 credits + 10,000 daily reads)
Enterprise Plan: $99/month (500 credits + 100,000 daily reads)

Merchants join free with 100 verification credits included.

About The Insumer Model™

The Insumer Model™ provides privacy-preserving on-chain verification infrastructure for token-gated commerce. The platform enables businesses to recognize token and NFT holders with real-world discounts across 31 blockchains — no crypto payments, no wallet exposure, no data risk.

Built by Douglas Borthwick, drawing from 30+ years in finance and pioneering work in tokenized securities, the platform bridges digital asset ownership to everyday commerce through six connected applications and a developer API with triple-SDK agent tooling.

Media Contact

Douglas C. Borthwick
Email: press@insumermodel.com
X: @theinsumermodel
Website: https://insumermodel.com

PR Desk

The Insumer Model™ Launches On-Chain Verification API and Custom GPT — Enabling AI Agents to Bridge Token Ownership to Real-World Commerce Across 31 Blockchains