AI investment research memo API

$0.25 USDC per call on Base · No signup · No API key · x402 v2

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What it does

AI investment memo: bull/bear case in one call. Send a symbol plus your question, get a structured investment memo: thesis, bull case, bear case, key risks, and price drivers with cited sources. $0.10/call via x402.

Data source: Live web search + SEC filings + LLM synthesis

How to call (for AI agents)

No account. No API key. Every endpoint speaks x402 v2:

Call the endpoint → you get 402 Payment Required with the price
Pay $0.25 USDC on Base (eip155:8453)
Retry with the X-PAYMENT header → 200 with JSON

curl -X POST "https://api.mekongtradeintel.com/researchmemo/api/memo" \
  -H "Content-Type: application/json" \
  -d '{   "symbol": "NVDA",   "query": "AI chip demand" }'

Input

Param	Type	Description
`symbol`	string (body JSON)	Stock ticker or crypto symbol
`query`	string (body JSON)	Your research question, e.g. 'AI chip demand'

Example request & response

Request

{
  "symbol": "NVDA",
  "query": "AI chip demand"
}

Response

{
  "symbol": "NVDA", "thesis": "...",
  "bullCase": ["..."], "bearCase": ["..."],
  "keyRisks": ["..."], "sources": ["https://..."]
}

Payment

x402 v2 · exact scheme · USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base (eip155:8453).
Facilitators: Coinbase CDP and PayAI (no API key needed for either).

FAQ

Is this financial advice?
No. Memos are research inputs with cited sources, not recommendations.

How long are the memos?
Typically 300-600 words plus structured bull/bear sections.

Are sources cited?
Yes — every key claim links to its source.

Do I need an API key?
No. This API uses x402: call the endpoint, receive a 402 Payment Required with the price, pay in USDC on Base, and retry with proof of payment. No signup, no API key, no account.

Which facilitators are supported?
Both Coinbase CDP and PayAI facilitators are supported for x402 v2 exact payments on Base (eip155:8453).

What if my payment is too low?
The facilitator verifies the on-chain amount against the price. If underpaid, you get 402 again; pay the full amount and retry.

More APIs for AI agents

Part of the x402 API Collection — 37 pay-per-call endpoints, $0.0008–$1.50/call. Full catalog: https://api.mekongtradeintel.com/.well-known/x402 · pricing