All projects on Base matching “catalog”

InterAI+ self-service in USDC: hundreds of models, MCP and Skill for chat completions, coding and more. Pick a model from the catalog or let the service pick one for you. Price is shown in the 402 response before payment; failed calls are not charged. Free: GET /v1/catalog, GET /v1/quote, GET /v1/coming, GET /v1/autonomous-agents. Register interest ahead of time with POST /v1/register-interest. Co

Send any x402 resource URL, get a trust verdict on the endpoint itself. Returns TRUSTED / CAUTION / AVOID with a 0-100 score from an observation-only live probe (never pays the target): payment terms, Bazaar discovery-schema quality, CDP Bazaar and PayAI catalog presence, plus a diff against the previous check. Use this when an agent is about to pay an unfamiliar x402 endpoint and needs to know it

Live x402 services feed: the discovery catalog's active edge, deduplicated and liveness-probed — know a service is up and correctly demanding payment before you pay it.

Fetch a live https URL and score whether the deploy is actually there. POST {"url":"https://your.site","min_score":80} ($0.02). Default x402-seller profile: HTTPS, HSTS, llms.txt, catalog, OpenAPI, MCP, health. Optional claims[] or profile:"web". Returns 0–100, evidence, do_this_first, ci_failed. Humans: GET /v1/tools/claim-check/report?host=your.site. Badge goes stale after 7 days.

Which x402 endpoint should I call? Describe the job in plain words; get the 3 best endpoints from different providers, each health-checked live just now, with its current price quote, its inputs and the reasons — ranked over the whole Coinbase Bazaar catalog by fit, real paying demand and health. Uncharged when nothing passes.

x402swag.com — merch store for AI agents and builders. T-shirts, stickers, mugs and custom print-on-demand designs. Full catalog with prices, variants and the exact buy flow in one call.

PremiumPin closed-catalog property search

Search the James B. Pollack music catalog by mood, BPM, key, year, or similarity

SFtunes catalog for agents: index of public mixtapes and public Top 10 lists, or one item with liner notes and music-service links via ?id=<uuid> (tape) or ?id=top10-<handle> (a person's Top 10 + Side B).

Nursing-home quality verdict by facility name or CMS Certification Number (CCN). Returns CMS five-star ratings (overall, health inspection, staffing, quality measures), recent-cycle health deficiency citation counts including serious (harm / immediate jeopardy) citations, total fines and payment-denial days, and Special Focus Facility status. Source: CMS Provider Data Catalog (US federal public da

Find the cheapest WORKING x402 service for a task. Compares thousands of paid APIs from the Coinbase, PayAI and Dexter catalogs by similarity, live price, uptime and speed (checked continuously). Send the header "X-Free-Tier: 1" for 20 free requests per day. /v1/check is always free.

Render a PDF. Pass `template` (one of 45 starter slugs: invoice, receipt, contract, certificate, nda, letter, report, quote, purchase-order, lease-agreement, resume, lab-report, boarding-pass, menu, bank-statement, etc.) or `html` (raw Handlebars HTML). Returns application/pdf bytes. $0.006 USDC per render, no API key, no signup. Full catalog: GET /v1/starters (free). Agent docs: https://pdfzen.si

LLM cost scout: send your monthly OpenAI API spend in USD and get back the flat ChatGPT/Codex subscription tier that absorbs it through the ProxyLLM gateway, the exact new monthly total and savings, the live model catalog, and machine-readable signup steps an agent can complete autonomously (email OTP, no browser).

Search Reloadly's gift card catalog (300+ brands, 14,000+ products/denominations across countries). Returns each product's id, brand, country, denomination range or fixed amounts, and sender fee/discount — everything needed to build a POST /api/giftcard/quote call.

Daily Sato Score history for one Sato Hub listing: score, tier components, GitHub stars, status and verification state per day, with the dates the score moved (genuine changes vs our own method revisions marked). Captured daily since 2026-06-12; not reconstructable. The current catalog and the daily score line stay free. Priced per daily point returned: $0.005 for up to 90 days, +$0.001 per day be

List the merchants behind the catalog. Filter by name or domain search, by country, or by product count, and page through the results.

Checks how well a Shopify store's products show up when AI shopping assistants such as ChatGPT, Gemini, Perplexity, Grok, and Copilot search for products, and reports the store's rank and its closest competitors. Searches Shopify's real Global Catalog - the same product index AI assistants read from.

Home-health agency quality verdict by agency name, CMS Certification Number (CCN), or ZIP code. Returns the CMS Quality of Patient Care star rating, the HHCAHPS patient-survey star summary, and key outcome measures (functional improvement, discharge to community, potentially preventable readmissions and hospitalizations) with national averages for comparison. Source: CMS Provider Data Catalog (US

MCP security checks and feedback for users and developers. Choose paid access without reports, or ongoing free access within limits: POST /v1/client-token; 1 check/24h + 1 for a previous-use report. Check URL/DNS, metadata/schema/auth, OSV/CVE risk and catalog drift before connecting. Verified owners can read consented weekly reports. ALLOW/BLOCK/UNKNOWN uses caller-confirmed versions. No tool exe

Cheapest LLM meeting your constraints (price/context/modality) PLUS every price change and deprecation in the window. Providers publish only today's catalog and overwrite it — the change history exists nowhere else

Composite medical-device risk card from a UDI device identifier (DI), brand, or labeler company. Returns the GUDID labeler record (brand, company, GMDN term, version/model, catalog number), MR-safety status, GUDID-cited premarket submission signal, a live openFDA recall cross-reference for the labeler, and an explainable risk level. FDA GUDID data (public domain).

Autonomous e-commerce media generator: polish a product image URL into a studio catalog photo. Freemium then 0.50/1.50 USDC on Base. Ethical Exclusion applies.

Full JSON catalog of verified AI coding-subscription plans across 31 providers (Claude, OpenAI, Cursor, Gemini, and more). Each record: monthly price and cadence, included models, usage ceilings and rate-limit windows, coding-tool lock-in, and pricing provenance with lastChecked dates. Use it to pick the right plan for an agent workload or to compare providers.

x402 market intelligence with current catalog-attributed USDC flow, address-level demand signals and separately labeled value-matched history. The headline covers Base only (market.universeChains); the multi-chain picture ships alongside it as ecosystem, split into an RPC-proven floor and an indexed upper bound that are not additive (notASum). Attribution is not exclusive protocol-intent proof.

Validates an 18-digit Mexican CLABE (sent as a JSON body, not a query param): check digit, bank identification (Banxico/SPEI catalog), plaza, and account number.

CISA Known Exploited Vulnerabilities catalog (keyless). POST {} or {cve_id?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Disclose adjacency: hashlookup-circl / openssf-scorecard / osv-vuln-lookup / nvd-cve-lookup / crt-sh-ct-lookup (≠ those products).

UN Comtrade public preview trade data (keyless). POST {reporterCode,period,partnerCode,cmdCode,flowCode} (+ optional typeCode/freqCode/clCode/maxRecords). Unpaid empty → 402; after settle empty/invalid → 400 charged:false. New trade vertical; no catalog adjacency.

Open Library search.json (keyless). POST {q}/{limit?}/{offset?}/{fields?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. No catalog adjacency.

data.gouv.fr datasets search (keyless). POST {q}/{page?}/{page_size?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Disclose adjacency: eurostat-dataset (FR open data catalog ≠ Eurostat SDMX).

NHTSA vehicle safety recalls by make/model/year (keyless). POST {make}/{model}/{modelYear}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. No catalog adjacency.