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SCOPE Research API

Source-backed research and text embeddings for AI agents, x402 paid, USDC on Base. Verified route: POST /embeddings at $0.003, which takes {input} as a string or a small batch and returns text-embedding-3-small vectors. At verification the returned vector was 1536 dimensions matching the declared model and was unit-normalized, the property a genuine embedding from that model must have. Paths: /answer, /website-research, /news-research, /company-research, /product-research, /ecommerce-research, /research, /data-analysis, /file-research, /embeddings, /compare. The catalogue also advertises web, company, product, news, website, ecommerce, file and data research plus comparisons, priced up to $0.070; those routes are listed but not payment verified. The service advertises a Solana rail as well, but only the Base rail was paid and only Base is covered here. Base only.

1 of 11 routes settlement-verified · $0.003–$0.07 USDC/request · 11 endpoints / 11 tools · Intelligence · base network · x402 protocol

Verified routes

Other routes are unverified.

Networks: Base (settlement-verified), Solana (accepted)

Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.

url https://payapi.market/mcp

Listing facts

Provider
SCOPE Research API
Hosted at
scopeapi.dev
Category
Intelligence
Price
$0.003 to $0.07 USDC per request
Endpoints
11
MCP tools
11
Payment networks
Base, Solana
Settlement-verified
1 route, last checked 2026-09-15
Listed on PayAPI Market
2026-09-15

Try SCOPE Research API

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://scopeapi.dev/embeddings"

About this API

SCOPE Research API is listed in the Intelligence category with pricing at $0.003–$0.07 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-09-15. 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 11 endpoints. Only the verified route has been tested by PayAPI Market. Other routes are unverified.

Questions about this API

What does SCOPE Research API do?

Source-backed research and text embeddings for AI agents, x402 paid, USDC on Base. Verified route: POST /embeddings at $0.003, which takes {input} as a string or a small batch and returns text-embedding-3-small vectors. At verification the returned vector was 1536 dimensions matching the declared model and was unit-normalized, the property a genuine embedding from that model must have. Paths: /answer, /website-research, /news-research, /company-research, /product-research, /ecommerce-research, /research, /data-analysis, /file-research, /embeddings, /compare. The catalogue also advertises web, company, product, news, website, ecommerce, file and data research plus comparisons, priced up to $0.070; those routes are listed but not payment verified. The service advertises a Solana rail as well, but only the Base rail was paid and only Base is covered here. Base only. It is provided by SCOPE Research API.

How much does SCOPE Research API cost?

SCOPE Research API is priced at $0.003 to $0.07 USDC per request, paid per call with no subscription. PayAPI Market paid 0.003 USDC for one call to /embeddings when it verified the listing. 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 SCOPE Research API?

No. SCOPE Research API uses the x402 protocol, so an agent pays per request in USDC on Base, Solana and gets the response, with no API key, account or signup.

Has SCOPE Research API been verified?

Yes, 1 route of its 11 endpoints. 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 2026-09-15. Routes that were not paid for are unverified.

How does an AI agent find SCOPE Research API?

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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