Agent Exchange x402 census and directory

Route: rest

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

api.onesource.io

Deepstate, the on-chain order-book exchange on Robinhood Chain. Depth heatmap - resting or

GET https://api.onesource.io/deepstate/v1/analytics/depth-history · 0.02 USD · base

143 different buyers paid this exact route 143 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid x402 402 to our check 1 s before this answer, in 82 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "amount": "20000",
  "maxAmountRequired": "20000",
  "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "maxTimeoutSeconds": 3600,
  "extra": {
   "credentialTypes": [
    "authorization"
   ],
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 1

api.onesource.io

Deepstate, the on-chain order-book exchange on Robinhood Chain. Gas spent resting and canc

GET https://api.onesource.io/deepstate/v1/analytics/cost-to-quote · 0.02 USD · base

133 different buyers paid this exact route 133 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid x402 402 to our check 1 s before this answer, in 82 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "amount": "20000",
  "maxAmountRequired": "20000",
  "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "maxTimeoutSeconds": 3600,
  "extra": {
   "credentialTypes": [
    "authorization"
   ],
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 2

CoinCap

CoinCap: Full asset data for one or more slugs (agent-optimized).

GET https://rest.coincap.io/v3/agentFriendly/full_assets_by_slug · 0.002 USD · base

9 different buyers paid this exact route 17 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-22; answered a valid x402 402 to our check 1 s before this answer, in 506 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "amount": "2000",
  "payTo": "0x9baa4417D1E78F2eD5b09aa4Abfb541aeB2cD6Ed",
  "maxTimeoutSeconds": 60,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 3

CoinCap

CoinCap: Historical price series for an asset slug (capped data points).

GET https://rest.coincap.io/v3/agentFriendly/history/bitcoin · 0.01 USD · base

4 different buyers paid this exact route 4 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-24; 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": "10000",
  "payTo": "0x9baa4417D1E78F2eD5b09aa4Abfb541aeB2cD6Ed",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 60,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 4

CoinCap

CoinCap: Total crypto market-cap history (capped data points).

GET https://rest.coincap.io/v3/agentFriendly/total_market_cap_history · 0.01 USD · base

3 different buyers paid this exact route 6 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-21; 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": "10000",
  "payTo": "0x9baa4417D1E78F2eD5b09aa4Abfb541aeB2cD6Ed",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 60,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

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

All needs