# Services from instructional-decision-engine-x402.vercel.app on Zero

> instructional-decision-engine-x402.vercel.app serves 50 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/instructional-decision-engine-x402.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/instructional-decision-engine-x402.vercel.app/health.json

## Services

- [NovaPath Package Vulnerability Advisory Lookup](https://www.zero.xyz/c/novapath-package-vulnerability-advisory-lookup-2cdf7f52/llms.txt): $0.1/call via x402. Queries current OSV vulnerability advisories for an exact npm, PyPI, or Go package version and returns an AI-generated explanation with source-matched evidence and advisory IDs
- [NovaPath Public Web Research](https://www.zero.xyz/c/novapath-public-web-research-65ddbc14/llms.txt): $0.03/call via x402. Answers one public-web research question by combining a live bounded web search, a concise AI-generated answer with citations, and direct source reads with exact excerpts and content hashes.
- [NovaPath SEC Filing Brief](https://www.zero.xyz/c/novapath-sec-filing-brief-5c1b44d6/llms.txt): $0.15/call via x402. Fetches the latest SEC 8-K, 10-Q, or 10-K filing for a given company CIK and returns an AI-generated summary with source-matched quotes and filing metadata within explicit reading limits
- [NovaPath Document Evidence Reader](https://www.zero.xyz/c/novapath-document-evidence-reader-3226fa47/llms.txt): $0.15/call via x402. Fetches a public HTML, text, or text-layer PDF URL on demand and returns a concise AI-generated brief with source-matched evidence quotes, retrieval timestamp, source hash, and explicit reading limits
- [NovaPath Grant Claim Trace Verifier](https://www.zero.xyz/c/novapath-grant-claim-trace-verifier-836752f9/llms.txt): $0.25/call via x402. Validates up to eight numeric grant claims for source traceability, population/geography/period consistency, and arithmetic correctness, returning corrected values and evidence gaps.
- [NovaPath Web Page Reader](https://www.zero.xyz/c/novapath-web-page-reader-85c3d8bb/llms.txt): $0.002/call via x402. Fetches and returns clean bounded text from up to two permitted public HTTPS pages or text-layer PDFs in a single paid request, including URLs, retrieval times, and content hashes.
- [NovaPath Coaching Cycle Builder](https://www.zero.xyz/c/novapath-coaching-cycle-builder-bb02fec5/llms.txt): $0.05/call via x402. Generates a bounded instructional coaching cycle including a rehearsal plan, observation focus, and follow-up plan from a selected focus area and timing parameters.
- [NovaPath Scope-Change Quote Calculator](https://www.zero.xyz/c/novapath-scope-change-quote-calculator-3cc941fc/llms.txt): $0.05/call via x402. Calculates a draft scope-change quote and delivery-day estimate from effort, rate, costs, and capacity inputs, returning itemized arithmetic and an approval checklist without modifying contracts or sending quotes.
- [NovaPath Community Indicator Comparator](https://www.zero.xyz/c/novapath-community-indicator-comparator-3605137d/llms.txt): $0.25/call via x402. Compares two community indicators for definitional consistency, population alignment, geographic boundary compatibility, reference period overlap, unit equivalence, and statistical uncertainty before yielding or withholding a comparison result.
- [NovaPath Document Comparison](https://www.zero.xyz/c/novapath-document-comparison-3ccb25a2/llms.txt): $0.2/call via x402. Compares two permitted public documents (HTML, text, or PDF) using AI analysis with exact supporting quotes, clearly distinguishing observed differences from unknowns without implying chronological order from URL position.
- [NovaPath Election Evidence API](https://www.zero.xyz/c/novapath-election-evidence-api-67ab5d0e/llms.txt): $0.1/call via x402. Returns AI-explained, source-verified election vote counts for historical US presidential contests (2016, 2020, 2024) with exact totals, statuses, timestamps, and source URLs preserved.
- [NovaPath FEC Presidential Election Results](https://www.zero.xyz/c/novapath-fec-presidential-election-results-01397eca/llms.txt): $0.01/call via x402. Returns official FEC historical U.S. presidential popular-vote results for 2016, 2020, and 2024, broken down by state, DC, or national totals, with named major-party candidates and an all-others bucket.
- [NovaPath Next Teaching Move Selector](https://www.zero.xyz/c/novapath-next-teaching-move-selector-e496bef3/llms.txt): $0.1/call via x402. Selects a bounded, grade-appropriate (3-8) instructional teaching move based on observed student error patterns, prior instruction, and available time.
- [NovaPath Research Brief Generator](https://www.zero.xyz/c/novapath-research-brief-generator-3e6449b4/llms.txt): $0.03/call via x402. Converts a public-topic keyword query into a concise, deterministic research brief with up to five numbered, evidence-grounded statements, primary-source links, date range, and verification questions — no LLM-generated claims.
- [NovaPath GIS Layer Manifest Auditor](https://www.zero.xyz/c/novapath-gis-layer-manifest-auditor-bdb09dcc/llms.txt): $0.15/call via x402. Audits up to eight GIS-layer manifests for missing dependencies, CRS mismatches, boundary vintage conflicts, join uniqueness issues, missing values, and geometry errors without any file uploads or network fetches.
- [NovaPath Math Practice Task Retriever](https://www.zero.xyz/c/novapath-math-practice-task-retriever-35c85921/llms.txt): $0.02/call via x402. Retrieves up to four existing NovaPath math tasks (practice, guided, error-analysis, or transfer) with separate teacher answers for a specified lesson from the free catalog.
- [NovaPath Coaching Metric Reconciliation](https://www.zero.xyz/c/novapath-coaching-metric-reconciliation-10e64c45/llms.txt): $0.2/call via x402. Reconciles two coaching metrics by comparing their numerator, denominator, date window, attribution, and evidence rules to explain why similar percentages disagree and produce a common reporting contract.
- [NovaPath Math Lesson Plan Retrieval](https://www.zero.xyz/c/novapath-math-lesson-plan-retrieval-84461c8f/llms.txt): $0.05/call via x402. Retrieves a complete NovaPath math lesson plan including worked examples, practice problems, checks, and separate teacher guidance with source and editorial-review provenance.
- [NovaPath Evidence Quality Auditor](https://www.zero.xyz/c/novapath-evidence-quality-auditor-524a06d1/llms.txt): $0.05/call via x402. Audits a supplied list of evidence sources for freshness, source type, sample size, methods availability, and reuse permission, returning per-source quality flags.
- [NovaPath Math Worked Example Retrieval](https://www.zero.xyz/c/novapath-math-worked-example-retrieval-d2cc08e2/llms.txt): $0.02/call via x402. Retrieves a math worked example with step-by-step explanation, final answer, and model specification for a selected lesson from the NovaPath free catalog.
- [NovaPath Public Business Records Search](https://www.zero.xyz/c/novapath-public-business-records-search-e279abe8/llms.txt): $0.01/call via x402. Searches 12,890 reviewed public business records across permits, fleets, FDA device decisions, food enforcement, and NY healthcare, returning up to five source-linked matches with keyword relevance explanations.
- [NovaPath Coaching Follow-Up Coverage Calculator](https://www.zero.xyz/c/novapath-coaching-follow-up-coverage-calculator-f27f854a/llms.txt): $0.03/call via x402. Computes instructional coaching observation and follow-up coverage gaps and queue estimate from three aggregate cycle counts over a specified time window.
- [NovaPath Engagement Margin Calculator](https://www.zero.xyz/c/novapath-engagement-margin-calculator-121852ab/llms.txt): $0.05/call via x402. Calculates recognized contribution margin and contract completion forecast from labor minutes and cost inputs, returning formula inputs and assumptions in integer USD cents.
- [NovaPath Delivery Capacity Gap Calculator](https://www.zero.xyz/c/novapath-delivery-capacity-gap-calculator-d82ac493/llms.txt): $0.03/call via x402. Calculates remaining or overloaded delivery capacity by subtracting a reserve buffer and proposed work from available minutes, returning spare or overload minutes with transparent arithmetic.
- [NovaPath Compensation Evidence Audit](https://www.zero.xyz/c/novapath-compensation-evidence-audit-c09524d8/llms.txt): $0.35/call via x402. Audits up to eight role evidence packets for JD/PAQ coverage, comparable scales, duty alignment, wage-basis issues, and reuse restrictions, returning a prioritized review queue.
- [NovaPath Survey Audit](https://www.zero.xyz/c/novapath-survey-audit-6ecc7ec9/llms.txt): $0.15/call via x402. Audits up to 10 survey items for denominator errors, incompatible source totals, and multi-select percentage mistakes, returning corrections and a review queue.
- [NovaPath Nonprofit Role Archetype Matcher](https://www.zero.xyz/c/novapath-nonprofit-role-archetype-matcher-e86fdc0c/llms.txt): $0.5/call via x402. Compares a bounded nonprofit responsibility profile against 12 original role archetypes, returning three ranked candidate matches with explanations, mismatches, and evidence questions.
- [NovaPath Bid Readiness Checker](https://www.zero.xyz/c/novapath-bid-readiness-checker-e50ab124/llms.txt): $0.05/call via x402. Evaluates proposal readiness by checking mandatory-requirement coverage, unresolved requirements, deadline proximity, and preparation capacity, returning specific blockers.
- [NovaPath Organization Evidence Profile](https://www.zero.xyz/c/novapath-organization-evidence-profile-5dee7371/llms.txt): $0.03/call via x402. Builds a public business evidence profile from an exact normalized organization name, returning record counts by source, locations, date range, and up to five supporting records.
- [NovaPath Seasonal Case Collection Retrieval](https://www.zero.xyz/c/novapath-seasonal-case-collection-retrieval-6e44550a/llms.txt): $0.6/call via x402. Retrieve a disclosed collection of 25 related seasonal cases (with source records, six tasks per case, and separate answer keys) for a chosen family ID from 20 available structures.
- [NovaPath Public Records Freshness Auditor](https://www.zero.xyz/c/novapath-public-records-freshness-auditor-a8f6c80c/llms.txt): $0.01/call via x402. Audits event age and snapshot age for up to five public records against a chosen as-of date, flagging stale snapshots and distinguishing source-event recency from observation date.
- [NovaPath Workshop Model Retrieval](https://www.zero.xyz/c/novapath-workshop-model-retrieval-40b2d1d0/llms.txt): $0.02/call via x402. Retrieves the pre-existing worked model and learning objectives for a specific seasonal instructional case by case ID.
- [NovaPath Organization Compare](https://www.zero.xyz/c/novapath-organization-compare-ec447eb0/llms.txt): $0.03/call via x402. Compare two public business evidence footprints side by side, including dated source coverage, record counts, locations, and supporting references without scoring or aggregating financial metrics.
- [NovaPath Related Records Finder](https://www.zero.xyz/c/novapath-related-records-finder-4c833b81/llms.txt): $0.01/call via x402. Given a stable public record ID, finds up to five related historical public records with shared terms, relevance scores, and primary-source links.
- [NovaPath Public Records Retrieval](https://www.zero.xyz/c/novapath-public-records-retrieval-3e17d727/llms.txt): $0.02/call via x402. Retrieve up to five exact public records by their stable record IDs, returning source identifiers, agency links, event dates, and reported amounts without inference or augmentation.
- [NovaPath Internet Archive Reference Comparator](https://www.zero.xyz/c/novapath-internet-archive-reference-comparator-c15a37a3/llms.txt): $0.02/call via x402. Compares two to four Internet Archive items side-by-side across authorship, publication year, subjects, and license coverage, highlighting metadata gaps and shared subject terms with source links.
- [NovaPath Internet Archive Metadata Search](https://www.zero.xyz/c/novapath-internet-archive-metadata-search-9b8aec11/llms.txt): $0.01/call via x402. Searches a cross-domain Internet Archive metadata snapshot and returns up to five bibliographic references with item links and license information
- [NovaPath Assessment Coverage Audit](https://www.zero.xyz/c/novapath-assessment-coverage-audit-6778f3a5/llms.txt): $0.2/call via x402. Reconciles an assessment-window histogram against missing administrations and delivered interventions to separate data coverage from valid growth and causal impact.
- [NovaPath Entry/Exit Check Retrieval](https://www.zero.xyz/c/novapath-entry-exit-check-retrieval-7e189aa9/llms.txt): $0.02/call via x402. Retrieve an existing two-item entry or exit instructional check with answer guidance and next steps for a specified lesson.
- [NovaPath Seasonal Case Retrieval](https://www.zero.xyz/c/novapath-seasonal-case-retrieval-8c5dd2a6/llms.txt): $0.06/call via x402. Retrieves a single existing seasonal instructional case by ID, including source records, six tasks, teacher answers, and a worked model.
- [NovaPath Service Match](https://www.zero.xyz/c/novapath-service-match-45a06bd8/llms.txt): $0.01/call via x402. Find the top matching services from a curated 36-resource shortlist of Coinbase Bazaar's highest-ranked APIs, returning URLs, descriptions, 30-day usage stats, and prices.
- [NovaPath Document Checklist Generator](https://www.zero.xyz/c/novapath-document-checklist-generator-4c9b7a94/llms.txt): $0.03/call via x402. Returns a checklist of missing documents required to start a website, data workflow, or coaching program project, based on which documents have already been received.
- [NovaPath Citation Pack Builder](https://www.zero.xyz/c/novapath-citation-pack-builder-b3f01a52/llms.txt): $0.01/call via x402. Creates a reusable citation pack for up to five public records, returning structured metadata (agency, record ID, event date, observation timestamp, edition, source URL) in Markdown or JSON format.
- [NovaPath Professional Review Cases](https://www.zero.xyz/c/novapath-professional-review-cases-9ae48a78/llms.txt): $1/call via x402. Retrieves up to six synthetic professional-review scenario cases with optional answer keys and scoring rubrics, drawn from 24 documented failure-pattern scenarios.
- [NovaPath Internet Archive Bibliography Generator](https://www.zero.xyz/c/novapath-internet-archive-bibliography-generator-4b46b708/llms.txt): $0.02/call via x402. Creates a source-linked bibliography in Markdown or JSON format for up to five Internet Archive items, preserving creator metadata, publication years, stable identifiers, and lic

… (truncated at 16384 bytes)