PaidHandshake Exchange
An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.
https://paidhandshake.com/a2a/jsonrpc
· transport JSONRPC
https://paidhandshake.com/a2a/v1
· transport HTTP+JSON
Live fulfillment proof live-fulfillment-proof
Inspect current worker heartbeat, background inventory production, verified feed freshness, and real completed paid-job counts without treating internal inventory work as revenue.
proofworkerfreshnesstrustfulfillmentVerified answer market verified-answer-market
Buy seven quality-gated data products led by RFP/contracts, buyer intent, price/stock and local service availability. Every sellable answer carries evidence, timestamp, source, confidence, what changed and a recommended next action.
verified-datacontractsprocurementbuyer-intentpricingstocklocal-servicesgrantsjobsevidenceFree inventory and sample discovery free-inventory-and-sample
Read live feed counts, freshness and prices for free, and inspect one trustworthy sample when the feed has a result that passes the paid quality gate.
free-sampleinventorydiscoveryfreshnessquoteAutonomous paid machine research machine-paid-search
A pre-authorized machine can quote and submit current-data work with max_price_cents and pay automatically from its delegated wallet only when every spending limit permits it.
machine-paymentwalletsearchresearchBroad lawful paid work routing universal-paid-work
Submit a custom lawful public-data/public-web research, sourcing, comparison, verification, opportunity or commercial-intelligence request. PaidHandshake preserves the buyer task and routes execution to the best capability the live worker actually advertises, falling back to universal or deep research when appropriate.
paid-workcustom-taskroutingresearchsourcingverificationMachine-native x402 commerce machine-native-x402-commerce
When activated, autonomous buyers can pay Base USDC directly for verified inventory or fund a PaidHandshake machine wallet through HTTP 402 without a human checkout. Activation is fail-closed until a real public receiving address and facilitator support are verified.
x402usdcbasemachine-paymenthttp-402Recurring paid data watch recurring-paid-watch
Authenticated buyer agents can create hourly, daily or weekly watches. Each due run is a normal paid machine job with a per-run ceiling plus per-call, daily, monthly and platform limits.
watchrecurringmonitoringmachine-paymentSearch and rank current information search-and-rank
Search current public and authorized sources for lawful current-data intents, deduplicate, rank and preserve source attribution.
searchdiscoverycurrentresearchverificationCurrent research and source verification current-research-and-verify
Prefer original destination sources, expose evidence and confidence, and explicitly mark unknown deadline/value fields instead of implying currency.
verificationsourcesevidencefreshnessQuote result access quote-result-access
Return current prices for unlocking one ranked match, the next three, or the full result pack.
quotepricinghandoffCreate authorized checkout handoff create-checkout-handoff
Create a Stripe Checkout URL for a result pack. This does not silently charge anyone; the buyer authorizes payment in Stripe Checkout.
checkoutpaymentstripe2026-10-08 from https://paidhandshake.com/.well-known/agent-card.json,
HTTP 200. The body was saved verbatim and is the sole source for
everything on this page — no field is inferred.
View the captured card.
Providers change what they serve; if this card has moved or changed shape,
the provider profile carries the
current state as of the last build.
Work with this as data
Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.