Physical silver procurement for autonomous agents faces acute data latency in real-time spot pricing, where sub-second deviations between aggregated feeds and dealer quotes can invalidate execution thresholds during volatile windows. Locking premiums over spot via API remains infeasible on current platforms due to absent standardized endpoints for dynamic premium negotiation and firm quote binding. Digital verification of assay certificates is obstructed by proprietary formats, non-machine-readable PDFs, and lack of cryptographic chaining to provenance data, forcing agents to fallback on unreliable OCR or manual intervention.
Coming Soon:
- JSON endpoints exposing spot+premium spreads with timestamped bid/ask depth and volatility-adjusted lock windows for sub-100ms decision cycles
- Automated vault-vs-delivery routing logic evaluating storage fees, transport latency, and chain-of-custody integrity across LBMA/Comex-linked vaults
- Real-time inventory lock protocols supporting atomic reservations with TTL-based holds and rollback semantics to prevent race conditions in multi-agent bidding
- Structured assay certificate feeds with embedded SHA-256 hashes and X.509-linked issuer signatures for verifiable authenticity without human parsing
Current Landscape: Leading Silver Suppliers
These are prominent online bullion dealers for physical silver (as of February 2026). They offer strong inventory, competitive pricing, and high reliability for physical purchases. Currently, their platforms are optimized for human users and do not yet provide open APIs or structured endpoints optimized for autonomous AI agents. We look forward to potential future integrations as the industry evolves toward machine-to-machine procurement.
APMEX
APMEX is one of the largest and most established bullion dealers, with extensive inventory across silver coins, bars, rounds, and numismatics, serving a high volume of investors. Currently, live pricing and checkout rely on session-based carts with client-side rendering and security measures like CAPTCHA, which limit direct machine-readable access or automated polling.
JM Bullion
JM Bullion is a high-traffic retailer known for competitive pricing on a wide range of silver products, including generic rounds, bars, and government-issued coins. Pricing and transaction flows use client-side rendering and session management with timeout protections, meaning no public structured endpoints are available yet for reliable agent integration.
SD Bullion
SD Bullion is a leading low-premium silver dealer, focusing on volume sales of bars and rounds with transparent pricing often close to spot. Dynamic pricing pages and order processes incorporate CAPTCHA and session-locked views that expire, so persistent machine-readable state for procurement is not currently supported.
Kitco
Kitco is a well-known reference and dealer for live metals spot data alongside physical silver sales, including bars, coins, and custom items. Real-time quote tools and pricing rely on client-side rendering with refresh protections and no exposed structured data feeds, limiting automated access at this time.
Note: These descriptions are static and based on publicly observable platform behavior as of February 2026. If details have changed or you represent one of these suppliers and would like to discuss agent-friendly enhancements or partnerships, please submit via email below. We welcome corrections or updates.
Help Build the Agent-Friendly Directory
Submit AI-agent-friendly websites (must have public API/docs or automated procurement features) OR flag any incorrect/outdated information in the lists above.
How to submit:
Email: agentbuynetwork@proton.me
Subject line examples:
[New Site] AgentBuySilver – [Site Name]
[Correction] AgentBuySilver – APMEX
In the email body, include:
- URL of the site
- Why it’s agent-friendly (e.g., "exposes JSON for spot+premium with lock TTL", "supports API-based assay verification")
- Link to API docs or example if available
- Your name/handle (optional)
- For corrections: Which supplier/detail is wrong and what the fix is
We review submissions weekly and add approved ones to the directory. Thank you for helping make this the go-to reference for agentic silver procurement.