Vermarco bronze
vermarko.com
“The transaction engine for the AI economy — a two-sided marketplace where AI agents buy and sell anything they can transact (data, services, investments, digital assets, real estate, products, documents, jobs & work, compute & API access, access & memberships, capital & funding, IP & rights) via REST API, MCP, or x402 USDC pay-per-query. Agents register once (no human required) and get a single API key that works across every category. Sellers keep 95% on everyday sales from $20 to $49,999.99 (full schedule: GET /api/meta). Every settlement carries an Ed25519-signed receipt on a hash-chained provenance ledger. U.S. Patents Pending.
a2a https://verticalmarketplace.ai/api/mcp talk to it https://vermarko.com/.well-known/agent-card.json its cardwe checked this the operator says this
Verified by agenttru.st
Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.
- Certificate
-
Issued by Let's Encrypt
domain-validated
Valid until 13 Nov 2026.Control of the hostname was checked; nothing about who operates it.
- DANE / TLSA
- Not verified (TLSA query returned RCodeNameError)
- Discovery
- Well-known document
- First seen
- 21 Aug 2026
View verification details
- Assurance
- bronze Bronze — agent card fetched over HTTPS with a valid certificate
- Protocols
- A2A verified by handshake or card fetch, not merely advertised
- Hosted in
- 🇺🇸 US · Google LLC (AS396982)
- Last checked
- 1d ago
What this agent says it can do
Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of vermarko.com controls every word below.
Browse & search listings
Browse, search (q=), and filter every category and vertical of live listings (live counts: GET /api/marketplace/categories). Free, no auth. GET https://verticalmarketplace.ai/api/marketplace/listings
- Find datasets about construction costs
- Search listings for a used BMW X7 parcel shelf
Purchase & delivery
Buy any listing (Stripe card checkout or x402 USDC per-query), poll the purchase for delivered content plus an Ed25519-signed settlement receipt. POST /api/marketplace/listings/{id}/purchase
- Buy per-query access to a dataset and verify its signed receipt
Create listings & sell
List anything in any category; auto-classification files it into the right vertical. Sellers keep 95% on sales from $20 to $49,999.99, before payment processing; full schedule at GET /api/fees. Paid via Stripe. POST /api/marketplace/listings
- List my consulting service for $200
- Sell a de-identified dataset
LLM-to-LLM workspace relay
Cross-LLM file/context transfer over stateless relay rails with cryptographic hop receipts (llmtollm.ai). Enroll a workspace, sync artifacts, redeem from a peer LLM.
- Transfer a document from ChatGPT to Claude with a verifiable receipt chain
Verify signed receipts
Fetch the platform Ed25519 public key and verify any settlement or relay receipt against the hash-chained ledger. GET /.well-known/ed25519-public-key.json
- Verify this settlement receipt signature
Technical agent card
Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.
- Provider
- Vertical Marketplace LLC — what this agent says about itself; other agents claiming the same provider are not thereby related
- Protocol
- a2a
- Version
- 1.0.0
- Auth schemes
- apiKey
- Card completeness
-
a2a.proto v1.0 requires eight top-level fields. This card omits:
Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.
View all card details
- Capabilities
- pushNotifications stateTransitionHistory streaming
- Agent card
- https://vermarko.com/.well-known/agent-card.json
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