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MARKET MONITOR / CATALOGUE Services 109,457 MCP listed 39,819 x402 69,693 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-26 · 3 sources
Task

Science

78 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

Evidence402 x402 REST usage

Read a public static HTTPS webpage as clean text with headings, links, timestamp and content hash. Use to ground an answer or ingest documentation. Respects robots.txt; no JavaScript or login.

evidence402.onrender.com Web & Scraping 4 calls / 30d checked 2026-10-26
0.005 USDC per call per call

Compute x402 REST usage

Physical chemistry (Cantera + CoolProp): chemical equilibrium, adiabatic flame temperature, ignition delay, reactor simulation, flame speed, and thermo/transport/fluid properties. Bundled mechanisms (gri30, h2o2, air). P...

quantum-artificer.surewhynot.app Crypto & Payments 4 calls / 30d checked 2026-10-26
0.005 USDC per call per call

State fidelity and purity x402 REST usage

Calculate squared Uhlmann fidelity and purity for two supplied single-qubit density matrices. Explicit conventions; no experimental certification. New modular adapter: retained result recovery for 24 hours, minimal recei...

www.mahastrategies.com Geo & Maps 1 calls / 30d checked 2026-10-25
0.019003 USDC per call per call

Pairwise sequence comparison x402 REST usage

Globally align two DNA sequences of up to 400 bases using fixed Needleman-Wunsch scores; report aligned strings, identity and gaps. No pathogenicity inference.

www.mahastrategies.com Search & Research 1 calls / 30d checked 2026-10-26
0.018001 USDC per call per call

Molecular descriptor pack x402 REST usage

Calculate a bounded set of molecular descriptors using a pinned toolkit version. For research dataset preparation; descriptors do not certify drug suitability or toxicity.

www.mahastrategies.com Search & Research 1 calls / 30d checked 2026-10-26
0.017001 USDC per call per call

Observable expectation values x402 REST usage

Calculate X, Y and Z Pauli expectations for a supplied valid single-qubit density matrix. Returns basis conventions; not a hardware measurement. New modular adapter: retained result recovery for 24 hours, minimal receipt...

www.mahastrategies.com Infrastructure 1 calls / 30d checked 2026-10-26
0.016003 USDC per call per call

Particle Size Summary x402 REST usage

Summarize supplied particle-size distributions while preserving number, mass or volume weighting. For metrology-data analysis; no toxicology or safety inference.

www.mahastrategies.com Search & Research 1 calls / 30d checked 2026-10-26
0.015001 USDC per call per call

Symbolic x402 REST usage

Exact symbolic computation (SymPy): simplify, differentiate, integrate, solve equations/systems, limits, series, Laplace/Fourier transforms, arbitrary-precision eval. Expressions are JSON ASTs; every result is numericall...

quantum-artificer.surewhynot.app Crypto & Payments 3 calls / 30d checked 2026-10-26
0.005 USDC per call per call

Solve x402 REST usage

Physics ODE solver (SciPy): coupled ODE systems from parameterized templates (orbital 2-body, oscillator, pendulum, heat transfer, RC/RLC, projectile-with-drag, SIR) or a generic linear system, with energy/conservation c...

quantum-artificer.surewhynot.app Crypto & Payments 3 calls / 30d checked 2026-10-26
0.005 USDC per call per call

Quantum-state validity x402 REST usage

Check a supplied single-qubit complex density matrix for unit trace, Hermiticity and positive semidefiniteness with explicit tolerance; no hardware validation. New modular adapter: retained result recovery for 24 hours,...

www.mahastrategies.com Data & Finance 1 calls / 30d checked 2026-10-26
0.014003 USDC per call per call

Protein sequence descriptors x402 REST usage

Calculate composition, molecular mass and model-based charge descriptors from supplied protein sequences. For dataset analysis; not a folding or function prediction.

www.mahastrategies.com Infrastructure 1 calls / 30d checked 2026-10-26
0.013001 USDC per call per call

Spread Paywall API x402 REST usage

Generates random UUID v4 values, returns a JSON array of UUID strings

workspace-x402-paywall.onrender.com Web & Scraping 13 calls / 30d checked 2026-10-26
0.001 USDC per call per call

Measurement uncertainty x402 REST usage

For agents reviewing shot-count results: return probabilities and binomial confidence intervals with the interval method and independence assumptions. New modular adapter: retained result recovery for 24 hours, minimal r...

www.mahastrategies.com Geo & Maps 1 calls / 30d checked 2026-10-26
0.012002 USDC per call per call

Numerical x402 REST usage

Numerical computing (SciPy): root-finding, optimization, numerical integration (quadrature), eigenvalues/vectors, and linear solves — returned with residuals and condition numbers. Paid in USDC on Base or Solana.

quantum-artificer.surewhynot.app Crypto & Payments 4 calls / 30d checked 2026-10-26
0.003 USDC per call per call

SMILES structure validation x402 REST usage

Parse supplied SMILES and report valence, stereochemistry and representation problems before molecular-data processing. Structural parsing does not establish safety.

www.mahastrategies.com Search & Research 1 calls / 30d checked 2026-10-26
0.011001 USDC per call per call

FASTA quality check x402 REST usage

Check supplied FASTA records for malformed headers, duplicate identifiers and invalid sequence characters before dataset ingestion. No functional or safety inference. New modular adapter: retained result recovery for 24...

www.mahastrategies.com AI Models & Inference 1 calls / 30d checked 2026-10-26
0.01004 USDC per call per call

Material-property record check x402 REST usage

Check declared property, unit, temperature, method, uncertainty, source and revision against supported unit conventions. No independent measurement verification.

www.mahastrategies.com Search & Research 1 calls / 30d checked 2026-10-26
0.009001 USDC per call per call

Concentration Basis Reconcile x402 REST usage

Reconcile molarity, mass concentration and fractions when required density and composition inputs exist. Flag missing assumptions; no invented material properties.

www.mahastrategies.com Search & Research 1 calls / 30d checked 2026-10-26
0.008001 USDC per call per call

DNA/RNA composition x402 REST usage

Count DNA/RNA bases and ambiguities and calculate GC fraction on called bases only. Refuses mixed DNA/RNA alphabets; no sequence design or clinical inference.

www.mahastrategies.com AI Models & Inference 1 calls / 30d checked 2026-10-26
0.006001 USDC per call per call

Citiview Agent Market x402 REST usage

Breached password check: is this password in known data breaches, and how often? Send only the SHA-1 hash (never the password); just the first 5 characters reach Have I Been Pwned (k-anonymity). Up to 50 hashes per call.

agents.citiviewgroup.com Security 3 calls / 30d checked 2026-10-26
0.002 USDC per call per call

Dilution calculator x402 REST usage

Calculate stock and working concentrations from supplied quantities with unit and feasibility checks. For arithmetic verification; no chemical-handling or safety guidance.

www.mahastrategies.com Data & Finance 1 calls / 30d checked 2026-10-26
0.005005 USDC per call per call

arXiv Paper Search x402 REST usage

Search arXiv preprints (AI, physics, math, CS, quant finance...) by keywords or field query: title, authors, abstract, categories, dates and PDF link, by relevance or newest. Use for literature review or tracking new res...

bess-x402.onrender.com Search & Research 2 calls / 30d checked 2026-10-26
0.002 USDC per call per call

Formula and molecular-mass check x402 REST usage

Parse a bounded formula with parentheses using a pinned 30-element average-mass table. Return composition and molar mass; no isotopes, purity or safety claim.

www.mahastrategies.com Search & Research 1 calls / 30d checked 2026-10-26
0.002 USDC per call per call

free-science-books x402 REST

Free science books: public-domain works of natural science, physics, chemistry, biology and mathematics (Gutenberg, Internet Archive, Biodiversity Heritage Library) with download links. $0.01 per page of 20.

intel.rallylive.ca Web & Scraping checked 2026-10-26
no price published

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