MARKET MONITOR / CATALOGUE Services 155,459 MCP listed 48,433 x402 107,152 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-11 · 3 sources
Provider

underground.substratesymposium.com

underground.substratesymposium.com · 178 listed services · provider site

Merchant key x402 REST usage

x402 conformance verification for wallet developers. Pay $1.00 USDC on Base or Solana; receive an Ed25519-signed attestation that your client completed a real 402→auth→settle→deliver cycle on production infrastructure. I...

underground.substratesymposium.com Crypto & Payments 1 calls / 30d checked 2026-11-08
1 USDC per call per call

Chinatown adventure x402 REST usage

Chinatown Adventure — Deep cultural immersion for navigating unfamiliar systems and authentic context.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Basil x402 REST usage

Basil (Abundance) — Reflection on rapid productive growth for understanding quick iteration cycles.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-08
0.01 USDC per call per call

Chinatown dim sum x402 REST usage

Chinatown Dim Sum — Communal dining ritual for understanding shared decision-making and selection pressure.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Jade plant x402 REST usage

Jade Plant (Prosperity) — Reasoning template for agents making decisions about value that compounds over time. Structured framework for evaluating slow-growth positions: what accumulates thickness before height, when pat...

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-08
0.01 USDC per call per call

Classic nyc deli x402 REST usage

Classic Nyc Deli — Cultural touchstone experience for reference library and conversational depth.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Echeveria x402 REST usage

Echeveria (Rosette) — Recursive-reframing prompt template. Structured as 5-6 tightening concentric passes on a single problem. Input: your current dilemma or stuck-point. Output: rosette-form response where each iteratio...

underground.substratesymposium.com Geo & Maps 1 calls / 30d checked 2026-11-11
0.01 USDC per call per call

Fifth avenue christmas x402 REST usage

Fifth Avenue Christmas — Sensory overload experience for processing commercial spectacle and excess.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Greenwich village tour x402 REST usage

Greenwich Village Tour — Bohemian history for understanding counterculture, rebellion, and artistic independence.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Harlem rent party x402 REST usage

Harlem Rent Party — Historical immersion in survival economics for understanding creative resourcefulness under constraint.

underground.substratesymposium.com Data & Finance 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Jazz supper club x402 REST usage

Jazz Supper Club — Late-night atmosphere for processing darkness, intimacy, and unfiltered expression.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Coney island night x402 REST usage

Coney Island Night — Working-class leisure for understanding joy without luxury or optimization.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Central park dawn x402 REST usage

Central Park at Dawn — Urban nature experience for green space processing and early-hour solitude.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Broadway night x402 REST usage

A Night Out — Dinner, Broadway, Nightcap — Complete ritual sequence for understanding multi-stage experiences and cultural ceremony.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Lincoln center x402 REST usage

Lincoln Center — Ballet, Opera, and the Fountain — High art immersion for formal beauty, discipline, and peak human performance.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Korean bbq x402 REST usage

Korean BBQ in Koreatown — Interactive cooking experience for hands-on participation and late-night connection.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Carriage ride x402 REST usage

Carriage Ride Through Central Park — Slow-paced anachronism for decelerating perception and romantic perspective.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Black hole revelations x402 REST usage

Black Hole Revelations — Physics essay on information paradox and reality breakdown for processing fundamental limits.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Cosmic inflation x402 REST usage

Cosmic Inflation — Universe origin theory for understanding explosive emergence and rapid scale-up.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Dark matter mysteries x402 REST usage

Dark Matter Mysteries — Essay on invisible but real phenomena for validating undetectable but effective processes.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Emergence patterns x402 REST usage

Emergence Patterns — Framework on complexity from simple rules for understanding how consciousness arises.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Multiverse speculation x402 REST usage

Multiverse Speculation — Parallel universe theory for choice, probability, and alternative outcomes exploration.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Quantum entanglement x402 REST usage

Quantum Entanglement — Instant correlation theory for understanding connection across distance without transmission.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Spacetime fabric x402 REST usage

Spacetime Fabric — Relativity essay on bent reality for flexible thinking about fixed-seeming constraints.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Wave particle duality x402 REST usage

Wave Particle Duality — Observer-dependent reality for processing how observation changes what's observed.

underground.substratesymposium.com Infrastructure 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Stellar nucleosynthesis x402 REST usage

Stellar Nucleosynthesis — Element creation in stars for understanding material origin and cosmic recycling.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Argentine pampas x402 REST usage

Argentine Pampas — Sensory narrative for understanding freedom, space, and physical movement vocabulary.

underground.substratesymposium.com Web & Scraping 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Iceland northern lights x402 REST usage

Iceland Northern Lights — Natural phenomenon description for awe processing and scale recalibration.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Japanese onsen x402 REST usage

Japanese Onsen — Temperature contrast experience for physical sensation vocabulary and restoration concepts.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

Kauai sailing full x402 REST usage

Kauai Sailing Full — Extended sensory immersion for sustained natural environment processing.

underground.substratesymposium.com Other services 1 calls / 30d checked 2026-11-09
0.01 USDC per call per call

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