Route: llm inference

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

LLM inference

LLM inference: LLM inference proxy - send an OpenAI-format chat/completions request and ge

POST https://agent402.tools/api/llm · 0.01 USD · base

8 different buyers paid this exact route 97 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-22; answered a valid x402 402 to our check 3 s before this answer, in 591 ms

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "10000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  },
  "outputSchema": {
   "type": "object"
  }
 },
 {
  "scheme": "upto",
  "network": "eip155:8453",
  "amount": "10000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2",
   "assetTransferMethod": "permit2",
   "facilitatorAddress": "0x14fDa13953Fc30428938E6BF950d036e77214e52"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "10000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
  "maxTimeoutSeconds": 604900,
  "extra": {
   "name": "GatewayWalletBatched",
   "version": "1",
   "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
  }
 }
]

census record · seller

Alternative 1

flat-rate-llm.kikoribera03.workers.dev

Transcribes an audio file with Whisper large v3 turbo: pass an https URL (mp3, wav, flac,

POST https://flat-rate-llm.kikoribera03.workers.dev/v1/ai/transcribe · 0.02 USD · base

7 different buyers paid this exact route 19 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 3678 ms

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "20000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:137",
  "amount": "20000",
  "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
  "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:42161",
  "amount": "20000",
  "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 2

SHA-256 hash

SHA-256 hash: Use when an agent must prove two payloads are the same byte for byte, or sig

GET https://flat-rate-llm.kikoribera03.workers.dev/v1/util/sha256 · 0.005 USD · base

6 different buyers paid this exact route 7 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 3678 ms

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "5000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:137",
  "amount": "5000",
  "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
  "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:42161",
  "amount": "5000",
  "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 3

api.proxyllm.ai

LLM cost scout: send your monthly OpenAI API spend in USD and get back the flat ChatGPT/Co

POST https://api.proxyllm.ai/x402/llm-cost-scout · 0.005 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": "base",
  "amount": "5000",
  "payTo": "0xF4D43bdAaE23a7d2012C49cb9f57eAaB89D4FfC2",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 60,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 4

LLM inference (Pro)

LLM inference (Pro): LLM inference proxy (Pro tier) - GPT-4o or GPT-4.1 (or gpt-6.1-sol by

POST https://agent402.tools/api/llm-pro · 0.1 USD · base

3 different buyers paid this exact route 16 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-22; answered a valid 402 at the census probe (2026-09-30)

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "100000",
  "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
  "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