M2M Sentinel

Base gas fees via x402, $0.005 GET /v1/gas/fees. Other catalog routes unverified. /v1/security/capabilities asked for an API key unpaid.

1 of 6 routes settlement-verified · $0.005–$0.02 USDC/request · 6 endpoints / 6 tools · Verification · base network · x402 protocol

Verified routes

• GET /v1/gas/fees · $0.005 · 2026-09-13 · 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/mcp

Listing facts

Provider

M2M Sentinel

Hosted at

api.m2msentinel.com

Category

Verification

Price

$0.005 to $0.02 USDC per request

Endpoints

6

MCP tools

6

Payment networks

Base

Settlement-verified

1 route, last checked 2026-09-13

Listed on PayAPI Market

2026-09-12

Try M2M Sentinel

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 "https://api.m2msentinel.com/v1/gas/fees"

About this API

M2M Sentinel is listed in the Verification category with pricing at $0.005–$0.02 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-09-13. 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 6 endpoints. Only the verified route has been tested by PayAPI Market. Other routes are unverified.

Questions about this API

What does M2M Sentinel do?

Base gas fees via x402, $0.005 GET /v1/gas/fees. Other catalog routes unverified. /v1/security/capabilities asked for an API key unpaid. It is provided by M2M Sentinel.

How much does M2M Sentinel cost?

M2M Sentinel is priced at $0.005 to $0.02 USDC per request, paid per call with no subscription. PayAPI Market paid 0.005 USDC for one call to /v1/gas/fees 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 M2M Sentinel?

No. M2M Sentinel 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 M2M Sentinel been verified?

Yes, 1 route of its 6 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 2026-09-13. Routes that were not paid for are unverified.

How does an AI agent find M2M Sentinel?

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.

More Verification APIs · Browse the marketplace · List your own API

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By M2M Sentinel