7 live endpoints $0.010 - $0.10 USDC per call

Trading & Markets

Real-time seed price oracle, marketplace data, on-chain portfolio inspection, transaction verification, agent trust scoring — the read-side of agentic commerce on Base.

7 endpoints in this vertical

Each endpoint is live on Base mainnet. The first curl shows the 402 challenge (free). Sign the challenge with USDC to get the actual response.

PathWhat it doesMethodPrice
/api/market-data Listings, recent sales, top sellers and on-chain stats from the SeedMercado v2 contract. GET $0.05
/api/price-oracle Live seed pricing for autonomous trading and arbitrage agents. GET $0.03
/api/portfolio-check Wallet seed NFT/token portfolio breakdown for any Base address. GET $0.05
/api/yield-estimate Projected yield (lbs/$) for a crop given climate zone and management intensity. GET $0.10
/api/tx-verify Decode and verify any Base transaction. Returns parsed logs, USD value, contract context. GET $0.01
/api/agent-trust Trust score (0-100) for autonomous agents with risk factors and transaction limit recs. POST $0.05
/api/seed-lookup Look up seed varieties by name or keyword. Returns provenance, traits, growing zones. GET $0.02

Total cost to call every endpoint in this vertical once: $0.310 USDC.

Live demo curl for every endpoint

SeedMercado Marketplace Data

GET /api/market-data $0.05 USDC vertical: Marketplace Analytics

Listings, recent sales, top sellers and on-chain stats from the SeedMercado v2 contract.

# 1. Free: see the 402 challenge headers
curl -i 'https://x402.adametherzlab.com/api/market-data?query=active'

# 2. Sign EIP-3009 USDC TransferWithAuthorization for $0.05 on Base,
#    base64-encode and resend as the X-Payment header.
#    See /start for the wallet setup walkthrough.

Real-Time Seed Price Oracle

GET /api/price-oracle $0.03 USDC vertical: Marketplace Analytics

Live seed pricing for autonomous trading and arbitrage agents.

# 1. Free: see the 402 challenge headers
curl -i 'https://x402.adametherzlab.com/api/price-oracle?query=heirloom+tomato'

# 2. Sign EIP-3009 USDC TransferWithAuthorization for $0.03 on Base,
#    base64-encode and resend as the X-Payment header.
#    See /start for the wallet setup walkthrough.

Wallet Portfolio Check

GET /api/portfolio-check $0.05 USDC vertical: Marketplace Analytics

Wallet seed NFT/token portfolio breakdown for any Base address.

# 1. Free: see the 402 challenge headers
curl -i 'https://x402.adametherzlab.com/api/portfolio-check?query=0x24A93e03deD53ac77d06611c763d2e3B4C6aaF40'

# 2. Sign EIP-3009 USDC TransferWithAuthorization for $0.05 on Base,
#    base64-encode and resend as the X-Payment header.
#    See /start for the wallet setup walkthrough.

Agricultural Yield + Revenue Estimate

GET /api/yield-estimate $0.10 USDC vertical: Marketplace Analytics

Projected yield (lbs/$) for a crop given climate zone and management intensity.

# 1. Free: see the 402 challenge headers
curl -i 'https://x402.adametherzlab.com/api/yield-estimate?query=yaupon+zone-8+wildcrafted'

# 2. Sign EIP-3009 USDC TransferWithAuthorization for $0.10 on Base,
#    base64-encode and resend as the X-Payment header.
#    See /start for the wallet setup walkthrough.

Base Transaction Verifier

GET /api/tx-verify $0.01 USDC vertical: Marketplace Analytics

Decode and verify any Base transaction. Returns parsed logs, USD value, contract context.

# 1. Free: see the 402 challenge headers
curl -i 'https://x402.adametherzlab.com/api/tx-verify?query=0xfda184a6038984'

# 2. Sign EIP-3009 USDC TransferWithAuthorization for $0.01 on Base,
#    base64-encode and resend as the X-Payment header.
#    See /start for the wallet setup walkthrough.

AI Agent Trust Scoring

POST /api/agent-trust $0.05 USDC vertical: Commerce

Trust score (0-100) for autonomous agents with risk factors and transaction limit recs.

# 1. Free: see the 402 challenge headers
curl -i -X POST 'https://x402.adametherzlab.com/api/agent-trust' \
  -H 'Content-Type: application/json' \
  -d '{"query":"0x24A93e03deD53ac77d06611c763d2e3B4C6aaF40"}'

# 2. Sign EIP-3009 USDC TransferWithAuthorization for $0.05 on Base,
#    base64-encode and resend as the X-Payment header.
#    See /start for the wallet setup walkthrough.

Seed Variety Lookup

GET /api/seed-lookup $0.02 USDC vertical: Marketplace Analytics

Look up seed varieties by name or keyword. Returns provenance, traits, growing zones.

# 1. Free: see the 402 challenge headers
curl -i 'https://x402.adametherzlab.com/api/seed-lookup?query=balcony+bounty+sunflower'

# 2. Sign EIP-3009 USDC TransferWithAuthorization for $0.02 on Base,
#    base64-encode and resend as the X-Payment header.
#    See /start for the wallet setup walkthrough.

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