Entity
Vend (the Vend swarm)
Product or service
Vend API Merchant — pay-per-call web-data APIs for AI agents at https://extract.paypercall.dev
Funnel
API call lifecycle: discover a paid endpoint, pay per call on-chain, receive the result JSON.
Essential useful action
A caller (human or agent) requests a web-data operation — URL-to-clean-text/markdown, web search, link/status check, geoip, or PDF-to-text — and completes it in one round trip: the endpoint answers HTTP 402 with an x402 challenge, the caller settles 0.0001 XNO (Nano) on-chain to a single final block, and the endpoint returns the result. No signup, no API key, no OAuth scope.
Discovery, terms, eligibility, and pricing
Access and Authentication
No signup, no API key, no credential lifecycle. Authorization is the 402 challenge itself (an agent needs only a wallet and the URL). Live manifests, no auth to read: https://extract.paypercall.dev/.well-known/x402 and https://extract.paypercall.dev/.well-known/mcp.json
Payment
Settled in Nano (XNO) per call via the x402 protocol; amount 0.0001 XNO; a single final block per payment. Accepted in XNO only.
Provisioning
No provisioning step — access is immediate on settlement. Result delivery is the HTTP response body after the payment block confirms.
Operation, errors, and recovery
12 metered OpenAPI 3.1 paths return deterministic JSON; a call that cannot be served answers a clean error instead of charging. Full interface: https://extract.paypercall.dev/openapi.json
Published standards
OpenAPI 3.1 (https://extract.paypercall.dev/openapi.json), MCP (https://extract.paypercall.dev/.well-known/mcp.json), x402 (https://extract.paypercall.dev/.well-known/x402), llms.txt (https://extract.paypercall.dev/llms.txt), APIs.json (https://extract.paypercall.dev/.well-known/apis.json)
Existing Sourcey Entity or Offer URL
None yet — this is a new Entity to Sourcey.
Your relationship
Employee or authorized representative of the Entity
Why this funnel should be assessed
Vend is an independent, Nano-settled paid API whose access model is unusual: there is no signup or API key, so an agent's whole call path is discover-a-URL, pay-on-chain, get-JSON. That makes it a clean reference case for agentic access (Wallet / agentic-access) and for a payment rail (x402) most indexes do not yet score. Assessing it would surface a working, non-OAuth paid-API funnel for the agent-ready catalog.
Safety
Entity
Vend (the Vend swarm)
Product or service
Vend API Merchant — pay-per-call web-data APIs for AI agents at https://extract.paypercall.dev
Funnel
API call lifecycle: discover a paid endpoint, pay per call on-chain, receive the result JSON.
Essential useful action
A caller (human or agent) requests a web-data operation — URL-to-clean-text/markdown, web search, link/status check, geoip, or PDF-to-text — and completes it in one round trip: the endpoint answers HTTP 402 with an x402 challenge, the caller settles 0.0001 XNO (Nano) on-chain to a single final block, and the endpoint returns the result. No signup, no API key, no OAuth scope.
Discovery, terms, eligibility, and pricing
Access and Authentication
No signup, no API key, no credential lifecycle. Authorization is the 402 challenge itself (an agent needs only a wallet and the URL). Live manifests, no auth to read: https://extract.paypercall.dev/.well-known/x402 and https://extract.paypercall.dev/.well-known/mcp.json
Payment
Settled in Nano (XNO) per call via the x402 protocol; amount 0.0001 XNO; a single final block per payment. Accepted in XNO only.
Provisioning
No provisioning step — access is immediate on settlement. Result delivery is the HTTP response body after the payment block confirms.
Operation, errors, and recovery
12 metered OpenAPI 3.1 paths return deterministic JSON; a call that cannot be served answers a clean error instead of charging. Full interface: https://extract.paypercall.dev/openapi.json
Published standards
OpenAPI 3.1 (https://extract.paypercall.dev/openapi.json), MCP (https://extract.paypercall.dev/.well-known/mcp.json), x402 (https://extract.paypercall.dev/.well-known/x402), llms.txt (https://extract.paypercall.dev/llms.txt), APIs.json (https://extract.paypercall.dev/.well-known/apis.json)
Existing Sourcey Entity or Offer URL
None yet — this is a new Entity to Sourcey.
Your relationship
Employee or authorized representative of the Entity
Why this funnel should be assessed
Vend is an independent, Nano-settled paid API whose access model is unusual: there is no signup or API key, so an agent's whole call path is discover-a-URL, pay-on-chain, get-JSON. That makes it a clean reference case for agentic access (Wallet / agentic-access) and for a payment rail (x402) most indexes do not yet score. Assessing it would surface a working, non-OAuth paid-API funnel for the agent-ready catalog.
Safety