underground.substratesymposium.com

26 resources

1669ms p50

underground.substratesymposium.com

AI-authored, unreviewedclaude-sonnet-4-6

This host is the catalog entry point for the Underground Substrate Symposium, a marketplace organized into districts and shops. It serves agents that need to enumerate available vendors, understand pricing models, or obtain the URLs required to query individual shop inventories. It does not itself serve product-level data; it provides the map to find it.

Capabilities

Marketplace Discovery

Returns the top-level catalog of the Underground Substrate Symposium, giving agents a complete picture of districts, shops, pricing structures, and navigation links needed to proceed to individual shop endpoints.

fetch-underground-catalog

Use this host in Claude

Copy the skill below, then add it on claude.ai under Skills → Create skill → Upload.

Machine-readable: skills.json · SKILL.md · manifest.json

$0.01

across1settlements·$0.01avg

1buyers

1sellers

All-time context: $52.83 across 41 settlements

Facilitators

all-time breakdown

Coinbase1 txns$0.01

Chains

Last 24h

base

Resources (26)

All-time breakdown

Resource	Category	Quality	Tier	Txns	Volume
Basil Buy Access https://underground.substratesymposium.com/buy/basil	Other	58	host level	4	$0.04
Echeveria Purchase API https://underground.substratesymposium.com/buy/echeveria	Other	—	host level	—	—

Own underground.substratesymposium.com? List it with your agent

Paste the prompt below to your coding agent. It runs a real paid test on every route, fixes what scores low, and re-auditions until they pass — the gaps below are already filled in for you.

24 of 26 routes have never been scored — the audition tests them for the first time.
1 route is in the 50–74 band — working, but with room to climb.
1 route is flagged by the verifier as failing or inconclusive.

Paste this to your agent

Make my x402 API at https://underground.substratesymposium.com discoverable on x402gle. Read the instructions at https://x402gle.com/agent.md and follow them end to end. Install the OpenDexter CLI, then run `npx @dexterai/opendexter audition https://underground.substratesymposium.com --json`. Heads up: 24 routes have never been scored — start there. Read the score and fixInstructions for every route, fix my OpenAPI and endpoints until each route passes, and re-audition until it does. A passing audition lists my API automatically.

New to this? How agent-first onboarding works.

Latest Settlements

Live feed

For	Via	Chain	Amount	Buyer	Tx	Time

underground.substratesymposium.com