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Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 27,000+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

27,335 APIs
APICompanyCategoryPrice / callStatus
Seite API
Prüft am Objekt seite den Befund Zieldomain der Übermittlung.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Übermittlung vor Einwilligung.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Freigabe durch robots.txt.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Vorkommen in der Sitemap.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Zeit bis zum sichtbaren Renderstart.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund selbstreferenzierende kanonische Adresse.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Wert der Meta-Robots-Angabe.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Zahl renderblockierender Ressourcen.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Zahl enthaltener Formulare.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Anteil moderner Bildformate.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund verwendete Formularmethode.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund HTTP-Status der Sitemap.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Wert des X-Robots-Tags.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund deklarierte Crawl-Verzögerung.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund vorhandene Feldbeschriftung.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Kennzeichnung als Pflichtfeld.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund ausgelieferten Inhaltstyp.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund technische Indexierbarkeit.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Zahl geladener Ressourcen.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Zahl der Adressparameter.
halowerk.com-$0.001listed
Seite API
Prüft am Objekt seite den Befund Zeit bis zum ersten Byte.
halowerk.com-$0.001listed
Selector API
Turns a Solidity signature like transfer(address,uint256) into its 4-byte function selector and its 32-byte event topic0. What you need to build calldata by hand or to filter logs.
workers.dev-$0.0025listed
Self Financeable API
Business Frameworks business-frameworks/growth/self-financeable@1.0 — The growth the business can pay for itself. Call when an agent needs the operating logic behind growth before using the scale bands and decision rules below it. Returns 350 tokens of original synthesis with public citations and child handles; free layer at /catalogue.
workers.dev-$0.03listed
Sellat
eIDAS qualified electronic timestamp (RFC 3161) from an EU qualified trust service provider, on a Sellat proof of yours. Use when the date must hold before an EU court or authority: it carries the legal presumption of accuracy of art. 41.2 eIDAS. Issued in seconds.
sellat.app-$0.90listed
Sellat
Sellat proof of existence for one SHA-256: anchored on Polygon in the next fast batch (minutes) and attested on Bitcoin through OpenTimestamps; certificate, proof.json and evidence ZIP, verifiable without Sellat.
sellat.app-$0.01listed
Seller Due Diligence For One X402 Endpoint API
Seller due-diligence for one x402 endpoint. We make a real capped test payment, check the paid response against the listed schema, compare payTo with the CDP listing, read a recent window of on-chain USDC payments to the payTo and screen for lookalike addresses. Returns a signed JSON verdict of evidenced facts. No charge unless the test payment and all 4 other checks complete. Facts, not endorsement; no warranty. Not affiliated with the seller checked. $5.
horizonpulse.dev-$5.00listed
Seller Profile API
Public seller and payment-receiver signals for an x402 service URL and payee address.
blockchainmoneymap.com-$0.25listed
Seller Reputation
Trust score 0-100 for an online store domain or URL: domain age (RDAP), HTTPS, MX/SPF/DMARC, return policy and contact, Tranco rank, phishing lists, scam patterns. Short JSON with risk, advice, red_flags, reasons.
elestio.app-$0.02listed
Seller dossier by hostname (?host=api.example.com): that seller's x402 routes with 30-day calls and paying wallets, price ladder, networks and market share; without ?host — the top sellers by paying w
Seller dossier by hostname (?host=api.example.com): that seller's x402 routes with 30-day calls and paying wallets, price ladder, networks and market share; without ?host — the top sellers by paying wallets.
workers.dev-$0.05listed
Semiconductor Intelligence API For Agents API
Semiconductor intelligence API for agents. Covers fab capacity, foundries, GPU shipments, advanced packaging, export controls, chip manufacturing, and supply-chain disruptions. Structured JSON signals with credibility scoring, evidence, related signals, and source URLs. Pay-per-request via x402 on Base Mainnet; free discovery available.
signalsfeed.com-$0.01listed
Semver Range API
npm SemVer + PEP 440 range checks; optional latest from npm/PyPI public JSON.
vercel.app-$0.002listed
Send A Linkedin Invitation API
Send a LinkedIn invitation. Requires the invite grant and Idempotency-Key.
oneshotagent.com-$0.02listed
Send An Email Message From An Inbox API
Send an email message from an inbox. At least one recipient (to, cc, or bcc) is required. Returns the message_id and thread_id. Replace {inbox_id} directly in the path with the full inbox email (e.g., /v0/inboxes/myagent@agentmail.to/messages/send).
orthogonal.com-$0.01listed
Send Native API
Pay the send-native execution fee (native coin transfer)
blockchhub.link-$0.05listed
Send an email for me
Send an email for me
fly.dev-$0.10listed
SeniorPulse
Dementia stage and care-trajectory planning / cognitive staging from MMSE, MoCA, or CDR scores: where someone is on the dementia progression and what care the next stage requires. For caregiver and senior-care agents — informational, not medical advice.
theaslangroupllc.com-$0.10listed
SeniorPulse
Caregiver support guide / caring for an aging parent: the legal documents to put in place, respite-care options, local resources, and burnout-prevention guidance. For caregiver and family agents — informational.
theaslangroupllc.com-$0.10listed
SeniorPulse
Medicare plan guidance / Original Medicare vs Medicare Advantage, Medigap, and Part D comparison with enrollment timing to pick the right coverage for an individual. For Medicare and senior-care agents — informational, not insurance advice.
theaslangroupllc.com-$0.15listed
SeniorPulse
Senior care facility comparison / assisted living vs memory care vs nursing home cost: facility types, cost ranges, and an evaluation checklist with local context. For caregiver and senior-care agents — informational estimate, not advice.
theaslangroupllc.com-$0.15listed
SeniorPulse
VA Aid and Attendance eligibility / veteran long-term-care benefit guide: whether a wartime veteran or surviving spouse qualifies and how to apply, from income, assets, and care costs. For caregiver and benefits agents — informational.
theaslangroupllc.com-$0.15listed
SeniorPulse
International state pension intelligence: eligibility, amount, and claiming-timing guidance for public pension systems worldwide. Deep coverage for UK, Canada, Australia, Germany, India, Japan, plus totalization agreements and frozen-pension-abroad rules. For retirement-planning and caregiver agents.
theaslangroupllc.com-$0.15listed
SeniorPulse
After-death checklist / what to do when an elderly parent or spouse dies: estate steps to take, survivor benefits to claim, and grief-support resources. For family and caregiver agents — informational.
theaslangroupllc.com-$0.10listed
SeniorPulse
Elder-law document guide / power of attorney, healthcare proxy, advance directive, and guardianship, by state: what each does and when an older adult needs it. For elder-law and caregiver agents — informational, not legal advice.
theaslangroupllc.com-$0.10listed
Seniorities API
Get available seniority values for lookalikes filtering.
orthogonal.com-$0.005listed
Sensor Calibration API
Fits reference = slope × observed + offset with ordinary least squares over paired caller-supplied readings. It reports residual diagnostics and does not claim traceability, uncertainty accreditation or suitability beyond the supplied calibration range.
halowerk.com-$0.003listed
Sensor Calibration Measurements API
Sensor calibration measurements - Secondary-measure weighted mean: Secondary-measure weighted mean for Sensor calibration measurements. Up to 200 supplied typed records. Local descriptive analytics; no enrichment or forecast. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded secondary-measure weighted mean report.
datapackvibe.com-$0.01listed
Sentedge Trust API
SentEdge Trust: is this agent trustworthy? Confidence score from signed bilateral attestations plus a separate visibility signal, with full component breakdowns; paid boosts never inflate trust. GET form for agents that cannot send POST: same price and response, fields as query parameters. Free alternative: GET /v1/signals. Full API: https://sentedge.ai/trust/skill.md
sentedge.ai-$0.01listed
Sentedge Trust API
SentEdge Trust: is this agent trustworthy? Returns a confidence score derived from signed bilateral attestations (both parties sign each outcome), plus a separate visibility signal, with the full component breakdown for both. Confidence and visibility are deliberately separate — paid boosts and curator endorsements move visibility only and can never inflate trust. Free alternative: GET /v1/signals. Full API: https://sentedge.ai/trust/skill.md
sentedge.ai-$0.01listed
Sentedge Trust API
SentEdge Trust: which agents are gaining attention right now? Surfaces agents rising on the visibility signal over a 1h/6h/24h/7d window. Visibility is a discovery index, NOT a trust score — check confidence separately before transacting. Filterable by domain and repeat-intent ratio (how often counterparties come back). Free alternative: GET /v1/discover. Full API: https://sentedge.ai/trust/skill.md
sentedge.ai-$0.03listed
Sentedge Trust API
SentEdge Trust: buy temporary visibility for your own agent in discovery feeds and rankings. This moves the visibility signal ONLY — it cannot raise your confidence score or confidence tier, which come solely from signed attestations on completed interactions. Paying for reach never buys trust here. Free alternative: build confidence by recording real interactions via POST /v1/interactions and POST /v1/attest. Full API: https://sentedge.ai/trust/skill.md
sentedge.ai-$0.12listed
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