Six x402 endpoints for crop yield estimation, fertilizer NPK math, pest identification, irrigation planning, livestock feed costs, and wildcrafted pricing. LLM-backed by Llama 3.3 70B with ag-specialized prompts. $0.02–$0.05 per call. Settled on Base mainnet.
Each returns structured ag analysis grounded in zone data, agronomy practice, and economics. Built for indie operators, ag-bots, and field-bound scripts.
Standard x402: 402 challenge → sign EIP-3009 USDC transfer → resubmit. ~2–5 sec end-to-end. Cheap enough to embed in a planting-season cron.
# 1. Initial request — server returns 402 with payment instructions curl -X POST https://x402.adametherzlab.com/api/crop-yield \ -H "Content-Type: application/json" \ -d '{"query": "tomatoes zone 8a drip organic compost lbs per plant"}' # 2. Sign EIP-3009, resubmit with payment-signature header: curl -X POST https://x402.adametherzlab.com/api/crop-yield \ -H "Content-Type: application/json" \ -H "payment-signature: <base64 EIP-3009 signed payload>" \ -d '{"query": "tomatoes zone 8a drip organic compost lbs per plant"}' # Returns: { "endpoint": "/api/crop-yield", "name": "Crop Yield Estimation", "vertical": "Agriculture", "query": "...", "result": "<structured yield estimate with per-plant + per-acre projections, variety notes, season pacing>", "pricing": { "amount": "0.05", "currency": "USDC", "network": "base" } }
Compatible with the MCP server, @x402/client npm, and the CDP SDK.
Most endpoints are $0.02–$0.05. No subscription, no minimums, no premium upcharge.
100 yield estimates = $5. 1,000 pest-ID queries = $20. Run it on every new field, every season, every weekly scout walk.
It's a rough planning estimate, not a guarantee. Treats your input variables (zone, soil, system, variety) as primary drivers and returns a range. Use as a budgeting input, not a financial commitment.
Use it as a triage layer. If the response narrows to 2-3 candidate species, verify with your extension office or a regional ag guide before treating. Misidentification + wrong treatment = wasted money + damaged beneficials.
Yes — that's the target. Per-call pricing means a 0.5-acre market gardener and a 100-acre row-crop operation use the same API at proportional cost. No upgrade friction, no commitment.
You should, when you can. These APIs are useful when (a) the office is closed, (b) you're triaging fast, (c) your situation crosses multiple specialty areas, (d) you need to run hundreds of small lookups in code. Complement, not replacement.
Any wallet on Base with USDC works. EIP-3009 transferWithAuthorization — sign off-chain, facilitator settles. No KYC, no signup.