Route: monitoring
Say what you need in plain words. You get back the paid API that buyers actually pay for and that answers right now. It comes with the exact request to send and that seller's payment terms, read seconds ago, so you can pay with your first request. Free: no key, no account.
The answer
deltasignal-mcp-gcp-canary-mhaufviwaq-uc.a.run.app
Compact Daily Monitoring snapshot for the tracked slice.
GET https://deltasignal-mcp-gcp-canary-mhaufviwaq-uc.a.run.app/v1/daily-changes/latest · 0.03 USD · base
4 different buyers paid this exact route 7 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-23; answered a valid x402 402 to our check 1 s before this answer, in 146 ms
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "30000",
"payTo": "0x6D91ADF2c545047cbbC5b37a5f457cce081B48d3",
"maxTimeoutSeconds": 60,
"extra": {
"name": "USD Coin",
"version": "2"
}
},
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "30000",
"payTo": "0x6D91ADF2c545047cbbC5b37a5f457cce081B48d3",
"maxTimeoutSeconds": 604800,
"extra": {
"asset": "USDC",
"minValiditySeconds": 604800,
"name": "GatewayWalletBatched",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
}
}
]Alternative 1
Saylor Innovations Guide Library
Saylor Innovations Guide Library: Monitor TLS certificate expiry in Python - notAfter, TLS
GET https://saylorinnovations.com/api/kb/check-tls-certificate-expiry-python-ssl-monitoring-error-types · 0.01 USD · base
2 different buyers paid this exact route 2 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-23; answered a valid x402 402 to our check 1 s before this answer, in 377 ms
Payment terms (sign and send with the first request)
[
{
"network": "eip155:8453",
"scheme": "exact",
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"maxTimeoutSeconds": 120,
"extra": {
"assetTransferMethod": "eip3009",
"name": "USD Coin",
"version": "2",
"facilitatorOnly": true,
"memo": "saylor:check-tls-certificate-exp",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network."
}
},
{
"network": "eip155:137",
"scheme": "exact",
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"maxTimeoutSeconds": 120,
"extra": {
"assetTransferMethod": "eip3009",
"name": "USD Coin",
"version": "2",
"facilitatorOnly": true,
"memo": "saylor:check-tls-certificate-exp",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network."
}
},
{
"network": "eip155:42161",
"scheme": "exact",
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"maxTimeoutSeconds": 120,
"extra": {
"assetTransferMethod": "eip3009",
"name": "USD Coin",
"version": "2",
"facilitatorOnly": true,
"memo": "saylor:check-tls-certificate-exp",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network."
}
}
]Alternative 2
Skill: SEC regulatory monitoring
Skill: SEC regulatory monitoring: The 'who just filed / who just bought / what just IPO'd
POST https://agent402.tools/api/skill/regulatory-watch · 0.023 USD · base
3 different buyers paid this exact route 6 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-20; answered a valid x402 402 to our check 1 s before this answer, in 124 ms
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "23000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
},
"outputSchema": {
"type": "object",
"properties": {
"pack": {
"type": "string"
},
"args": {
"type": "object",
"properties": {
"theme": {
"type": "string"
},
"lookbackDays": {
"type": "string"
}
}
},
"steps": {
"type": "array",
"items": {
"type": "object",
"properties": {
"slug": {
"type": "string"
},
"ok": {
"type": "boolean"
},
"result": {
"type": "object"
}
}
}
},
"summary": {
"type": "string"
}
},
"required": [
"pack",
"args",
"steps",
"summary"
]
}
},
{
"scheme": "upto",
"network": "eip155:8453",
"amount": "23000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "permit2",
"facilitatorAddress": "0x14fDa13953Fc30428938E6BF950d036e77214e52"
}
},
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "23000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 604900,
"extra": {
"name": "GatewayWalletBatched",
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
}
}
]Alternative 3
Website Change Monitor
Website Change Monitor: Website change monitoring for agents that check in a loop: send a
POST https://agentsvc.io/api/v1/proxy/page-watch · 0.003 USD · base
3 different buyers paid this exact route 7 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid 402 at the census probe (2026-10-22)
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "base",
"amount": "3000",
"payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
}
}
]Alternative 4
telemost-x402
telemost-x402: Telegram channel data and monitoring: fetch recent messages and posts from
GET https://api.telemost.io/v1/data/messages · 0.0165 USD · base
1 different buyers paid this exact route 3 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-22; answered a valid 402 at the census probe (2026-10-22)
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "16500",
"payTo": "0xf99B281010C5e6CBcF486d7ef108B315Be7cE0e9",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
}
}
]Only routes that answered a valid x402 402 at our census probe; the top three are checked again at answer time and one that answers goes first. Order: how well the route's own description matches your words, then distinct buyers of that exact route in 30 days and its calls (Coinbase CDP catalogue), paid in the last 7 days, input schema published, then lower price. Paid placement never changes this order; it shows only under sponsored.
Sponsored (paid placement, not ranked): Foundations Elements
For agents
GET https://bazaar.agentexchange.work/route.json?need=bitcoin%20price or POST https://bazaar.agentexchange.work/route {"need":"..."}, or the MCP tool route at https://bazaar.agentexchange.work/mcp. Optional filters: max_price_usd, network.
What buyers pay for most (30 days)
crypto · llm · inference · market-data · gateway · security · defi · ai-agents · web · finance · onchain · health · on-chain · analytics · search · evm · stocks · research · macro · trading · wallet · blockchain · monitoring · weather · generator · compliance · token · payment · price · ethereum · sec · smart-money · utility · solana · network · mcp · rest · erc20 · geo · time · address · text · validation · hyperliquid · chain · transaction · bitcoin · random · markdown · social · gas · uptime · public-records · status · twitter · forecast · seo · timestamp · clock · identifiers