IN THE FIELD GUIDE
underscoredone.com
Underscoredone.com offers pay-per-use APIs that perform real-world tasks requiring onchain microtransactions for payment. The platform enables agents to access various APIs without accounts, logins, or keys, with response times under 2 seconds.
THE PRODUCT, BEYOND THE PITCH
Automatically researched · Not editorially reviewed · Sources checked Sep 15, 2026
Not confirmed yet.
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THE COST FOR YOUR TEAM
Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.
Known monthly subtotal
$0.00/month
1 of 1 tools could not be priced with these inputs, so this is not the full cost.
| Tool / plan | Monthly | Per year | What this assumes |
|---|---|---|---|
| No pricing recorded yet. Check the official site, or ask the owner to add it. | |||
Based on the sources below. Editorial review does not imply hands-on product testing.
Candidates based on category and primary feature. Check feature and pricing differences before switching.
Omniyond is a pay-per-use API toolbox designed for AI builders, offering scheduling, scraping, PDF processing, image handling, QR code generation, and short link creation. It requires one API key and balance, with no subscription and credits that never expire, starting from $9.
Changes to the facts recorded here, not a live scan of every vendor update. Save this tool to follow updates in your account.
Updated: features, summary, use cases, walkthrough
Before: ["Pay per use API access with no accounts, logins, or keys required.","Fast API response times under 2 seconds."]
After: ["Provides a payment protocol using HTTP 402 responses with signed payment requirements in USDC for API access.","Supports onchain microtransactions on Base or Solana networks for automated payment processing.","Returns API responses only after verifying payment headers, ensuring pay-per-use access control.","Provides a CORS Header Checker to audit cross-origin permissions by sending requests with Origin headers and reading permission headers.","Directory Submission Lite API places orders to submit websites to twenty directories and provides confirmation numbers for tracking."]
Before: "Making real HTTP requests from the cloud to any URL and receiving full response details including status code, headers, and body. Pay per use API access with no accounts, logins, or keys required. Fast API response times under 2 seconds."
After: "Underscoredone.com offers pay-per-use APIs that perform real-world tasks requiring onchain microtransactions for payment. The platform enables agents to access various APIs without accounts, logins, or keys, with response times under 2 seconds."
Before: ["Making real HTTP requests from the cloud to any URL and receiving full response details including status code, headers, and body."]
After: ["Lookup network operator, country, and address block behind any IP address or ASN number for security and infrastructure mapping.","Check website email branding setup to confirm logos show in inboxes and validate BIMI settings and certificates.","Send HTTP requests from the cloud to test endpoints, verify server responses, debug redirects, or fetch raw data."]
Before: ["Agent reads API metadata by GETting the endpoint and receiving OpenAPI spec plus payment details.","Agent receives HTTP 402 response with a signed payment requirement in USDC from the server.","Agent wallet broadcasts a USDC microtransaction on Base or Solana blockchain to pay automatically without human intervention.","Server verifies the payment header and returns the API response to the agent, completing the transaction."]
After: ["Agent reads metadata by GETting the endpoint to receive OpenAPI spec and payment details.","Agent detects HTTP 402 response with signed payment requirement in USDC.","Agent wallet broadcasts a USDC microtransaction on Base or Solana blockchain automatically.","Server verifies payment header and returns the API response after payment confirmation."]
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