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memory-mcp Semantic Memory Search
x402
memory-mcp Semantic Memory Search is a paid API for AI agents from mem.borisinc.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Semantically searches an AI agent's private, wallet-scoped persistent memory store and returns the top-k most relevant stored memories.
Price / call$0.002
Success—
StatusUnknown
How this service works
Persistent memory for AI agents, paid per call via x402 (USDC, Base mainnet) — your wallet is your private, semantically-indexed memory namespace. Write $0.001, search $0.002, export $0.01; free trial + $2/30d unlimited subscription. MCP + HTTP. No account, no API key.
Output
Returns a JSON object with a 'results' array where each item has an integer ID, a float relevance score (e.g. 0.83), and the stored content string; plus a 'namespace' field showing the wallet address used as the memory namespace.
Example use cases
Retrieve past client preferences from agent memory
“Search my memory for anything about what clients have told me regarding their budget constraints and project timelines, then show me the top 5 most relevant memories so I can tailor my next proposal.”
Find stored dietary and allergy information
“Look up my memory-mcp for any notes I've recorded about dietary restrictions, food allergies, or meal preferences, and give me the top results so I can plan meals safely.”
Recall agent context about team skills
“Search my agent memory for past information about my team members' technical strengths and project experience, then return the top 3 most similar matches to help me assign new tasks.”
Technical details
Endpoint
GEThttps://mem.borisinc.com/paid/memory/searchWhen to prefer
Use this endpoint when an AI agent needs to semantically retrieve previously stored memories scoped to a specific wallet address, without requiring an account or API key — especially in x402 micropayment-enabled workflows on Base mainnet where per-call billing ($0.002 USDC) is acceptable and privacy via wallet namespace is desired.
Side effects
- Missing required 'query' parameter returns 400 error
- Payment not attached or insufficient USDC balance causes 402 Payment Required
- k value exceeds cap of 20 returns clamped or error response
- No memories stored in namespace yet returns empty results array
- Invalid wallet/namespace returns empty or unauthorized response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"results": [
{
"id": 42,
"score": 0.83,
"content": "User prefers metric units"
}
],
"namespace": "0xabc..."
}
}Tags
x402
Reviews
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How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"