Everything you need to cover The Insumer Model™. Brand assets, key facts, platform overview, and the story of on-chain attestation for commerce.
The emerging identity where investor and consumer merge into one.
For decades, investments lived on a page. A brokerage statement, a stock certificate, a cap table entry. Two dimensions of value: price appreciation and dividends. That was it. Blockchain changed this. When ownership moves on-chain, it escapes the page. It becomes portable, verifiable, actionable. Now there's a third dimension: real-world recognition and utility. You're not just an investor. You're not just a consumer. You're an Insumer, and your wallet proves it.
Asset increases in value over time
Periodic distributions to holders
Recognition and benefits in physical commerce
From community tokens to NYSE equities, the ownership economy is emerging.
Passionate, loyal communities with tribal affiliations and real purchasing power.
Institutional players bringing traditional investment into digital wallets.
NYSE and NASDAQ equities moving on-chain. Your entire portfolio in your wallet.
Merchants, developers, and AI agents can verify any of these communities without accepting crypto as payment.
The passionate communities merchants can now welcome and reward.
Ten products that together form end-to-end on-chain attestation for commerce.
The programmatic interface for The Insumer Model™ — used by developers, AI agents, and platforms. 26-endpoint REST API for on-chain verification. ECDSA-signed boolean attestations at $0.04 per call across 33 blockchains. Free tier with 100 attestations to start.
Three integration paths for autonomous agents: MCP server (26 tools, npm), LangChain toolkit (26 tools, PyPI), and OpenAI GPT action schema. Discover, authenticate, and verify without human intervention.
Customer-facing wallet app. Connect any wallet, generate a dynamic QR code, and present it at point of sale for instant verification. No crypto payments involved.
Merchant verification app. Scan QR codes or read NFC tags to verify token and NFT ownership in real time. Camera-based with cryptographic signature validation.
Merchant configuration portal. Choose which token communities to welcome, set discount tiers, manage API keys, and integrate with Stripe and Square.
Chrome extension for automatic online verification. Detects supported merchants and applies token-holder discounts during checkout without manual QR scanning.
Physical NFC tags at point of sale. Customers tap their phone, wallet opens automatically, and server-side verification completes the discount flow instantly.
ECDSA P-256 signatures on every attestation. JWKS key discovery at /.well-known/jwks.json for independent verification. Optional Merkle storage proofs for trustless on-chain validation.
Native support for OpenAI/Stripe ACP and Google UCP agentic commerce protocols. AI agents request discount eligibility, receive coupon objects in protocol-native format, and apply them at checkout without custom integration.
Interactive visual graph of all 26 endpoints showing how verification, commerce, and onboarding APIs connect across 17 reference patterns. Two credit pools, hub nodes, and the zero-cost discovery loop visualized at /workbench/.
Live integrations using InsumerAPI in production environments.
Cold-start identity signal for AI agent wallets in the Coinbase x402 ecosystem. InsumerAPI verifies balanceOf >= 0 on Base USDC via a single POST /v1/attest call, contributing 15 points to the Identity scoring dimension. Signatures are verified client-side with insumer-verify.
Know Your Agent trust scoring for ERC-8183 agentic commerce. InsumerAPI evaluates 4 attestation conditions—USDC balance, Coinbase KYC, country verification, Gitcoin Passport—in a single POST /v1/attest call, feeding a 7-component trust score. JWT responses verified via ES256 + JWKS.
Contributed the attestation_url pattern to the Knowledge Context Protocol, enabling KCP manifests to require credential verification before granting AI agent access. Mechanism-agnostic: works with on-chain tokens, Verifiable Credentials, OIDC, or SPIFFE.
Blockchains made writing permanent. We make reading them verifiable. The Insumer Model answers one question for any token or NFT on any chain: does this wallet hold it? The answer comes back as an ECDSA-signed boolean. No balances exposed. No wallet approvals. No crypto payments.
Three audiences use the platform: merchants verify token holders at point of sale for automatic discounts, developers integrate attestation into any app via a 26-endpoint REST API, and AI agents discover, authenticate, and verify autonomously through MCP, LangChain, and GPT action schemas.
Douglas is the founder of The Insumer Model™ and author of two books: "The Insumer Model" and "Your Equity in Your Pocket." With 30+ years of Wall Street experience, he designed the ownership economy infrastructure powering six connected applications across 33 blockchains.
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Pre-approved statements from Douglas Borthwick for press coverage.
"I wrote two books describing a world where ownership unlocks real-world benefits. Then we built the infrastructure to make it happen."
On Why We Built It"The Insumer Model unlocks the third dimension of ownership. Price appreciation is one. Dividends are two. Real-world utility from what you hold. That's the third dimension."
On the Third Dimension"One endpoint, one boolean, one ECDSA signature. That's the entire verification model. Does this wallet hold this token? Yes or no. No balances exposed, no wallet approvals, no smart contract interactions. A REST API that any developer can call in five minutes."
On the Developer Platform"AI agents can now autonomously discover our API, authenticate, verify token holdings, and onboard merchants without a human in the loop. MCP, LangChain, and GPT action schemas make that possible. The infrastructure doesn't care if the caller is a person or a machine."
On AI Agents"We verify ownership without exposing what you own. The merchant sees your discount tier, not your wallet balance. Prove what you own. Keep what's yours private."
On Privacy"Today it's SHIB holders. Tomorrow it's Apple shareholders. Tokenized securities are projected to reach $16 trillion by 2030. We're building the infrastructure now."
On the Future"Every attestation is signed with ECDSA P-256. The public key is published via JWKS. Anyone can independently verify a response without trusting us. Add optional Merkle storage proofs and you get trustless on-chain validation with zero intermediaries."
On Cryptographic Trust"We're not an oracle. We're not a bridge. We don't have a token. We return signed booleans. Does this wallet hold this asset? That's it. The simplest possible answer to the simplest possible question, cryptographically signed and privacy-preserving by default."
On What We're NotReady-to-use descriptions for articles and press releases.
Blockchains made writing permanent. The Insumer Model™ makes reading them verifiable. InsumerAPI returns ECDSA-signed booleans confirming token and NFT ownership across 33 blockchains. No balances exposed.
The Insumer Model™ provides on-chain attestation for commerce, serving three audiences. Merchants verify token holders at point of sale for automatic discounts via Stripe and Square. Developers integrate attestation and wallet trust profiles into any application through a 26-endpoint REST API. AI agents discover, authenticate, and verify autonomously using MCP, LangChain, and OpenAI GPT action schemas. Every response is ECDSA-signed. No balances exposed. No crypto payments required.
The Insumer Model™ is on-chain attestation for commerce and on-chain verification infrastructure that answers one question: does this wallet hold this asset? The answer is an ECDSA P-256 signed boolean, with the public key published via JWKS for independent verification. InsumerAPI provides 26 endpoints across 33 blockchains including Ethereum, Bitcoin, Solana, XRP Ledger, Base, Arbitrum, Polygon, and 26 more. Merchants use point-of-sale apps to verify token holders and apply automatic discounts through Stripe and Square, with Clover coming soon. Developers call a single REST endpoint for attestation at $0.04 per call, with compliance templates for Coinbase Verifications KYC. AI agents operate autonomously through three SDKs: an MCP server with 26 tools, a LangChain toolkit with 26 tools, and an OpenAI GPT action schema. Compatible with OpenAI/Stripe ACP and Google UCP for AI agent commerce flows. Optional Merkle storage proofs enable trustless validation. Privacy is the default: booleans only, never balances. With tokenized securities projected to reach $16 trillion by 2030, this infrastructure connects on-chain ownership to real-world recognition.
Links for technical press, researchers, and developer audiences.
Documentation, guides, and API key signup
All 26 endpoints with parameters and examples
Interactive visual graph of endpoint connections
Machine-readable API specification (YAML)
AI agent discovery file for LLM consumption
26 tools for Claude, Cursor, and Windsurf
Python toolkit with 26 tools
attestation_url pattern for agent credential gating
Technical articles, tutorials, and case studies