Agent Exchange x402 census and directory

Route: defillama

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.x402node.dev

Total value locked for any DeFi protocol with per-chain breakdown via DefiLlama, by protoc

GET https://api.x402node.dev/chain/defi-tvl · 0.005 USD · base

20 different buyers paid this exact route 100 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 130 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "5000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
  "amount": "5000",
  "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
  "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
  "maxTimeoutSeconds": 300,
  "extra": {
   "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
  }
 }
]

census record · seller

Alternative 1

DefiLlama DeFi TVL & Yields

DefiLlama DeFi TVL & Yields: Batch historical token prices by DefiLlama — prices for many

GET https://defillama.use.x402atlas.com/batch-historical · 0.005 USD · base

7 different buyers paid this exact route 9 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 115 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "amount": "5000",
  "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
  "maxTimeoutSeconds": 300,
  "extra": {
   "merchant": "x402Atlas",
   "name": "USD Coin",
   "tier": "standard",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:137",
  "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
  "amount": "5000",
  "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
  "maxTimeoutSeconds": 300,
  "extra": {
   "merchant": "x402Atlas",
   "name": "USD Coin",
   "tier": "standard",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:42161",
  "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  "amount": "5000",
  "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
  "maxTimeoutSeconds": 300,
  "extra": {
   "merchant": "x402Atlas",
   "name": "USD Coin",
   "tier": "standard",
   "version": "2"
  }
 }
]

census record · seller

Alternative 2

DefiLlama DeFi TVL & Yields

DefiLlama DeFi TVL & Yields: Options volumes for one chain by DefiLlama — options-protocol

GET https://defillama.use.x402atlas.com/options-chain · 0.005 USD · base

6 different buyers paid this exact route 10 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-21; answered a valid x402 402 to our check 1 s before this answer, in 103 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "amount": "5000",
  "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
  "maxTimeoutSeconds": 300,
  "extra": {
   "merchant": "x402Atlas",
   "name": "USD Coin",
   "tier": "standard",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:137",
  "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
  "amount": "5000",
  "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
  "maxTimeoutSeconds": 300,
  "extra": {
   "merchant": "x402Atlas",
   "name": "USD Coin",
   "tier": "standard",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:42161",
  "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  "amount": "5000",
  "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
  "maxTimeoutSeconds": 300,
  "extra": {
   "merchant": "x402Atlas",
   "name": "USD Coin",
   "tier": "standard",
   "version": "2"
  }
 }
]

census record · seller

Alternative 3

BlockRun.AI

BlockRun.AI: Detailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/p

GET https://blockrun.ai/api/v1/defillama/protocol/lido · 0.006 USD · base

7 different buyers paid this exact route 46 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-23; 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": "6000",
  "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 4

DefiLlama DeFi TVL & Yields

DefiLlama DeFi TVL & Yields: First recorded token price by DefiLlama — the earliest known

GET https://defillama.use.x402atlas.com/prices-first · 0.005 USD · base

5 different buyers paid this exact route 7 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": "5000",
  "payTo": "0xCB8025D951e5E45Be7D288B658EEee6f05713006",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 300,
  "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