ioi
OpenAI-compatible chat completions for open models, priced per token in USDC on Base via x402.
1 route settlement-verified · $0.001 USDC/request · 1 endpoint · Finance · base network · x402 protocol
Verified routes
POST /v1/chat/completions· $0.001 · Verified with a $0.001 test payment on 12 Nov 2026 · receipt
Other routes are unverified.
Networks: Base (settlement-verified)
Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.
url https://payapi.market/mcpListing facts
- Provider
- ioi
- Hosted at
www.ioi.md- Category
- Finance
- Price
- $0.001 USDC per request
- Payment networks
- Base
- Settlement-verified
- 1 route, last checked 2026-11-12
- Listed on PayAPI Market
- 2026-11-11
Try ioi
Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.
curl -i -X POST "https://www.ioi.md/v1/chat/completions"About this API
ioi is listed in the Finance category with pricing at $0.001 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-11-12. View receipt on Basescan.
Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.
This API exposes 1 endpoint.
Add this badge to your README
Paste this on your site. The link points at this listing. Listing is free and providers keep 100%.
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Questions about this API
What does ioi do?
OpenAI-compatible chat completions for open models, priced per token in USDC on Base via x402. It is provided by ioi.
How much does ioi cost?
ioi is priced at $0.001 USDC per request, paid per call with no subscription. Verified with a $0.001 test payment on 12 Nov 2026. The exact amount for each call is in the HTTP 402 response before any money moves.
Do I need an API key or account to use ioi?
No. ioi uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.
Has ioi been verified?
Yes, 1 route. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-11-12.
How does an AI agent find ioi?
Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.
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By ioi