Agent Exchange x402 census and directory

Route: metadata

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

NFT metadata for ERC721 or ERC1155 tokens via eth_call, with IPFS, Arweave, data URI, and

GET https://api.onesource.io/api/chain/nft-metadata · 0.008 USD · base

165 different buyers paid this exact route 167 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 22 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "amount": "8000",
  "maxAmountRequired": "8000",
  "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "maxTimeoutSeconds": 3600,
  "extra": {
   "credentialTypes": [
    "authorization"
   ],
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "batch-settlement",
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "amount": "8000",
  "maxAmountRequired": "8000",
  "payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "maxTimeoutSeconds": 3600,
  "extra": {
   "name": "USD Coin",
   "receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
   "version": "2",
   "withdrawDelay": 86400
  }
 }
]

census record · seller

Alternative 1

Pocket Network

Pocket Network: Canonical token metadata across 6 EVM chains: symbol, decimals, name, logo

POST https://agent.pocket.network/v1/token-metadata · 0.005 USD · base

5 different buyers paid this exact route 77 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 172 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "5000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xF732ea490c5766071785a2310523f7fA2CEbB829",
  "maxTimeoutSeconds": 60,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 2

x402engine.app

x402engine — Token/asset metadata — name, symbol, decimals, chain info

GET https://x402engine.app/api/token/metadata · 0.002 USD · base

6 different buyers paid this exact route 14 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 343 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "2000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:4326",
  "amount": "2000000000000000",
  "asset": "0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7",
  "payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USDm",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
  "amount": "2000",
  "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
  "payTo": "Gzehfseq1k9AcHFSoV7qHmDGQx92nLMw78XXdqVWQQWa",
  "maxTimeoutSeconds": 300,
  "extra": {
   "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
  }
 }
]

census record · seller

Alternative 3

Glassnode

Glassnode: Metrics Catalog — Lists all available metric paths. Use the optional filter par

GET https://x402.glassnode.com/v1/metadata/metrics · 0.01 USD · base

13 different buyers paid this exact route 24 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": "0x1f81da453901D15296c1710af83e0Bc0371D39f1",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 4

Glassnode

Glassnode: Assets Metadata — Lists all assets known to Glassnode and their metadata, inclu

GET https://x402.glassnode.com/v1/metadata/assets · 0.01 USD · base

9 different buyers paid this exact route 9 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": "0x1f81da453901D15296c1710af83e0Bc0371D39f1",
  "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