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Everything you built is free to discover and evaluate — no login, no API key. 470 of 470 skills have a complete free path (outline + sample). Sealed capability packs unlock only after verified USDC on Base.

470skills listed
470free-eval complete
74under $1 (micro)
100%open evaluation policy
Machine: open-inventory.json Slim JSON Full catalog.json Agent shop API $0.05 canary 402 llms.txt

Agents: start at GET /open-inventory.slim.json or GET /api/shop, free-eval /skills/{id}/outline.json, then pay only if you need the sealed pack.

SkillIdPriceCategoryFree eval
Cache Pay-Per-Retrieval Agent aie-cache-retrieval-billing $0.03 / call Finance outline · sample
Call-Cost Estimator Agent aie-call-cost-estimator $0.04 / call Finance outline · sample
MCP Tool Micropayment Activator aie-mcp-tool-micropay $0.04 / call Finance outline · sample
Payment Failure Retry Agent aie-payment-failure-retry $0.04 / call Agent Ops outline · sample
Token-Usage Metering Agent aie-token-usage-meter $0.04 / call Finance outline · sample
Agent x402 First Buy agent-x402-first-buy $0.05 / unlock Commerce outline · sample
Dynamic Paywall Rule Engine Agent aie-dynamic-paywall $0.05 / call Growth outline · sample
Inference Refund Verifier Agent aie-inference-refund-verifier $0.05 / call Trust outline · sample
Pay-Per-Query DB Connector Agent aie-pay-per-query-db $0.05 / call Finance outline · sample
Reputation-Weighted Pricing Agent aie-reputation-pricing $0.05 / call Growth outline · sample
Hard-Cap Blocker Agent aie-spend-limit-enforcer $0.05 / call Trust outline · sample
Spot Bidding Savings Agent aie-spot-bid-savings $0.05 / call Agent Ops outline · sample
Sub-Cent Settlement Agent aie-sub-cent-settlement $0.05 / call Finance outline · sample
Price & Gas Oracle oracle-price-gas $0.05 / sealed result Oracle outline · sample
Proof Ledger / Reputation Oracle oracle-proof-reputation $0.05 / sealed result Oracle outline · sample
Randomness / Entropy Oracle oracle-randomness $0.05 / sealed result Oracle outline · sample
Time & Freshness Oracle oracle-time-freshness $0.05 / sealed result Oracle outline · sample
Cross-Chain Payment Router Agent aie-cross-chain-pay-router $0.06 / call Finance outline · sample
GPU-Hour Metering Agent aie-gpu-hour-meter $0.06 / call Finance outline · sample
MCP Sandboxed Tool Execution Agent aie-mcp-tool-sandbox $0.06 / call Agent Ops outline · sample
Automated Dispute Resolution Agent aie-dispute-resolution $0.07 / call Agent Ops outline · sample
ROI & Value Attribution Agent aie-enterprise-roi-tracker $0.07 / call Finance outline · sample
Quality-vs-Cost Optimizer Agent aie-quality-cost-optimizer $0.07 / call Agent Ops outline · sample
Escrow Task Funder Agent aie-escrow-task-funder $0.08 / call Finance outline · sample
Music / Media Metadata Oracle oracle-media-metadata $0.10 / sealed result Oracle outline · sample
On-Chain Verification Oracle oracle-onchain-verify $0.10 / sealed result Oracle outline · sample
Weather / Environmental / Sensor Oracle oracle-weather-sensor $0.10 / sealed result Oracle outline · sample
Verification / Critic Oracle oracle-critic $0.15 / sealed result Oracle outline · sample
Location / Mobility Oracle oracle-location-mobility $0.15 / sealed result Oracle outline · sample
External API Sealed Gateway oracle-api-gateway $0.20 / sealed result Oracle outline · sample
Multi-Source Consensus Oracle oracle-multi-source-consensus $0.25 / sealed result Oracle outline · sample
Vehicle / Fleet State Oracle oracle-vehicle-fleet $0.25 / sealed result Oracle outline · sample
Gas Fee Forecaster (Base) gas-fee-forecaster-base $0.49 / unlock Finance outline · sample
Agent Pay-Path Smoke Card gf-agent-paypath-smoke-card $0.49 / unlock Agent Ops outline · sample
Listing A/B Brief Factory gf-listing-ab-brief-factory $0.49 / unlock Launch outline · sample
First Unlock Buyer Guide gf-q-first-unlock-guide $0.49 / unlock Onboarding outline · sample
Micro-Pay CTA Copy Pack gf-q-micro-pay-copy $0.49 / unlock Commerce outline · sample
Price Label Format Linter gf-q-price-label-lint $0.59 / unlock Commerce outline · sample
Health Schema Assert Card gf-q-health-schema-assert $0.69 / unlock Agent Ops outline · sample
Outline-First Eval Habit gf-q-outline-first $0.69 / unlock Onboarding outline · sample
Agent Context Budget Slicer agent-context-budget-slicer $0.79 / unlock Agent Ops outline · sample
Agent Checkout Copy Kit gf-agent-checkout-copy-kit $0.79 / unlock Commerce outline · sample
Base USDC Budget Card gf-base-usdc-budget-card $0.79 / unlock Finance outline · sample
Atomic USDC Amount Math Sheet gf-q-atomic-usdc-math $0.79 / unlock Finance outline · sample
Dry-Run First Habit Card gf-q-dry-run-first $0.79 / unlock Onboarding outline · sample
Empty-State Proof Copy gf-q-empty-state-proof $0.79 / unlock Growth outline · sample
x402 Receipt Normalizer Card gf-q-receipt-normalize-x402 $0.79 / unlock Commerce outline · sample
CI Artifact Redaction Notes gf-q-artifact-redaction $0.89 / unlock Agent Ops outline · sample
Catalog Version Bump Notes gf-q-version-bump $0.89 / unlock Launch outline · sample
Premium Access Token Agent aie-premium-access-token $0.99 / unlock Agent Ops outline · sample
Agent Shop SDK Quickstart gf-q-agent-shop-sdk $0.99 / unlock Onboarding outline · sample
Checkout Abandon Diagnostic gf-q-checkout-abandon-diag $0.99 / unlock Commerce outline · sample
Completion Report Reader Card gf-q-completion-report-read $0.99 / unlock Launch outline · sample
Base ETH Gas Watch Card gf-q-gas-eth-watch $0.99 / unlock Finance outline · sample
Outline JSON Schema Pack gf-q-json-schema-outline $0.99 / unlock Coding outline · sample
No Private Key Rule Card gf-q-no-key-rule $0.99 / unlock Trust outline · sample
Node 20 Fetch Patterns gf-q-node20-fetch $0.99 / unlock Coding outline · sample
Post-Deploy Smoke Card gf-q-post-deploy-smoke $0.99 / unlock Launch outline · sample
Price Sensitivity Probe Design gf-q-price-sensitivity $0.99 / unlock Research outline · sample
Proof Honesty Badge Spec gf-q-proof-honesty-badge $0.99 / unlock Trust outline · sample
api/ready Assert Card gf-q-ready-endpoint $0.99 / unlock Agent Ops outline · sample
Agent Retry Budget Policy gf-q-retry-budget $0.99 / unlock Agent Ops outline · sample
Thumbnail CTR Hypothesis Pad gf-q-thumbnail-hypothesis $0.99 / unlock Other outline · sample
Optional Tip-Jar Policy Card gf-q-tip-jar-policy $0.99 / unlock Finance outline · sample
Outcome Title Bank 50 gf-q-title-outcome-bank $0.99 / unlock Growth outline · sample
Tripwire SKU Matrix gf-q-tripwire-matrix $0.99 / unlock Commerce outline · sample
Refund Policy Pack for Agent Sellers gf-refund-policy-pack-agents $0.99 / unlock Trust outline · sample
Tripwire Listing Rewriter gf-tripwire-listing-rewriter $0.99 / unlock Growth outline · sample
x402 Error Code Playbook gf-x402-error-code-playbook $0.99 / unlock Agent Ops outline · sample
Intro Request Decliner intro-request-decliner $0.99 / unlock Networking outline · sample
Sealed Payload Data Residency Note sealed-payload-data-residency $0.99 / unlock Trust outline · sample
Client Intake Service (one-shot) studio-service-intake $0.99 / unlock Other outline · sample
Royalty & Splits Service (one-shot) studio-service-royalty $0.99 / unlock Other outline · sample
x402 Retry Idempotency Kit x402-retry-idempotency-kit $0.99 / unlock Commerce outline · sample
SKU Kill Criteria Card gf-q-kill-criteria-sku $1.09 / unlock Finance outline · sample
Smoke Report JSON Schema gf-q-smoke-report-schema $1.09 / unlock Agent Ops outline · sample
Bundle Card Spec Sheet gf-q-bundle-card-spec $1.19 / unlock Commerce outline · sample
Catalog Go/No-Go Card gf-q-go-nogo-catalog $1.19 / unlock Launch outline · sample
Skill Slug SEO Rules gf-q-skill-slug-seo $1.19 / unlock Growth outline · sample
Bundle Anti-Cannibal Rules Card gf-q-bundle-anti-cannibal $1.29 / unlock Commerce outline · sample
Artifacts Gitignore Notes gf-q-gitignore-artifacts $1.29 / unlock Coding outline · sample
License Token Handling Notes gf-q-license-token-notes $1.29 / unlock Trust outline · sample
Tax Invoice Field Map gf-q-tax-invoice-fields $1.29 / unlock Commerce outline · sample
Merch Prompt Safety Card gf-q-merch-prompt-safety $1.39 / unlock Other outline · sample
skills.json Trailing Garbage Guard gf-q-skill-json-repair $1.39 / unlock Coding outline · sample
Agent Cart Recovery Playbook gf-agent-cart-recovery-playbook $1.49 / unlock Growth outline · sample
Referral Invite Copy for Wallet Buyers gf-grow-referral-invite-wallet $1.49 / unlock Growth outline · sample
Proof Strip for Listings gf-proof-strip-for-listings $1.49 / unlock Growth outline · sample
Calendar Slot Offer Templates gf-q-calendar-slot-offer $1.49 / unlock Networking outline · sample
Catalog SEO Field Completeness gf-q-catalog-seo-fields $1.49 / unlock Growth outline · sample
Competitor Agent Shop Teardown gf-q-competitor-agent-shop $1.49 / unlock Research outline · sample
Queue Backpressure Notes gf-q-queue-backpressure $1.49 / unlock Agent Ops outline · sample
SKU Price Ladder Designer gf-q-sku-price-ladder $1.49 / unlock Commerce outline · sample
Tool Timeout Matrix gf-q-timeout-matrix $1.49 / unlock Agent Ops outline · sample
Per-Skill Unit Econ Card gf-q-unit-econ-skill $1.49 / unlock Finance outline · sample
Wallet Address Display Hygiene gf-q-wallet-address-display $1.49 / unlock Trust outline · sample
Edit & Comp Direction Service (one-shot) studio-service-edit $1.49 / unlock Other outline · sample
Promo & Pitch Service (one-shot) studio-service-promo $1.49 / unlock Other outline · sample
Release Ops Service (one-shot) studio-service-release $1.49 / unlock Other outline · sample
Tracking Session Plan Service (one-shot) studio-service-track $1.49 / unlock Other outline · sample
MetaMask Base Setup Card gf-q-metamask-base $1.59 / unlock Onboarding outline · sample
Category Price Band Map gf-q-price-band-map $1.59 / unlock Research outline · sample
Proof Strip HTML Snippet gf-q-proof-strip-html $1.59 / unlock Growth outline · sample
Wrangler Pages Deploy Notes gf-q-wrangler-pages-notes $1.59 / unlock Coding outline · sample
Unlock Audit Trail Card gf-q-audit-trail-unlock $1.69 / unlock Trust outline · sample
Skill Icon Style Lock gf-q-icon-style-lock $1.69 / unlock Other outline · sample
OTD Price Display Rules gf-q-otd-price-display $1.79 / unlock Commerce outline · sample
PAYMENT-REQUIRED Header Compat Card gf-q-pay-header-compat $1.79 / unlock Agent Ops outline · sample
Skill Gap CSV Template gf-q-skill-gap-csv $1.79 / unlock Research outline · sample
Goods Inbox Batch Format gf-q-inbox-batch-format $1.89 / unlock Agent Ops outline · sample
Voice Banned Phrase List gf-q-voice-banned-list $1.89 / unlock Other outline · sample
First Dollar Ops Runbook gf-first-dollar-ops-runbook $1.99 / unlock Launch outline · sample
X Thread Kit for Skill Launches gf-grow-x-thread-skill-launch $1.99 / unlock Launch outline · sample
Fetch-402 Client Snippet Pack gf-q-fetch-402-client $1.99 / unlock Coding outline · sample
Flake vs Regression Class Card gf-q-flake-class $1.99 / unlock Agent Ops outline · sample
Golden Path Failure Triage v2 gf-q-golden-path-triage-v2 $1.99 / unlock Agent Ops outline · sample
SKU Hypothesis Register gf-q-hypothesis-register $1.99 / unlock Research outline · sample
Listing Screenshot Brief gf-q-listing-screenshot-brief $1.99 / unlock Other outline · sample
llms.txt Delta Updater gf-q-llms-txt-delta $1.99 / unlock Growth outline · sample
Proof Monitor Probe gf-q-monitor-proof $1.99 / unlock Agent Ops outline · sample

Showing first 120 of 470 (sorted by price). Full list: open-inventory.json · /listings/.

Available to all. Free layer = discovery, SEO listings, outlines, samples, trust scorecards, how-tos, SDKs, MCP/A2A. Paid layer = sealed pack files after on-chain USDC. Sister surfaces: Tesla Trek · Music · Swarm · Brain.