CIRCUIT LLM // ENDPOINTS

circuit llm // developer reference

API ENDPOINTS

120+ endpoints for Solana data, DEX prices, token analysis, market intelligence, DeFi, and autonomous swarm signals. Pricing endpoints are free and public — just call and get data, no payment required. A full free Triton gRPC price feed is also available at 60 req/min. Everything else uses x402 micropayments in CIRC. No API keys, no accounts.

◈ 120+ endpoints ⚡ gRPC-powered, sub-second ◈ Pricing free & public ⚡ x402 CIRC for paid data ◈ Price Feed free at 60/min // Solana mainnet-beta // 240 req/min pricing limit

Base URL

https://api.circuitllm.xyz

Network

Solana mainnet-beta

CIRC Mint (Token-2022)

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Treasury (payment recipient)

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x402 PAYMENT PROTOCOL HOW IT WORKS

Circuit uses the x402 standard — HTTP 402 Payment Required — for API monetization. Instead of API keys, you pay per call with CIRC tokens on Solana. The server verifies the on-chain transaction, confirms the correct amount was sent to treasury, and returns your data. Each signature is single-use and expires 5 minutes from the transaction timestamp.

⊕

QUOTE

GET /api/quote for current CIRC/USD rate and exact cost per endpoint

◎

SEND CIRC

Transfer the required CIRC amount to the treasury wallet using Token-2022

◉

ATTACH SIG

Resend your request with header X-Payment-Signature: <txSignature>

✦

GET DATA

Server verifies on-chain, marks sig used to prevent replay, returns 200 + data

STEP 1 — get current quote

# Always fetch fresh — CIRC price changes
curl https://api.circuitllm.xyz/api/quote

{
  "payment": {
    "treasury": "<treasury_wallet>",
    "circUsdPrice": 0.000041
  },
  "endpoints": {
    "market": {
      "usdPrice": 0.002,
      "circRequired": "48.78 CIRC"
    }
  }
}

STEP 2–4 — pay and fetch

# Send CIRC using your Token-2022 wallet
# Then call the endpoint with the tx sig

curl https://api.circuitllm.xyz/api/market \
  -H "X-Payment-Signature: 5Kg3..."

# On failure, you get guidance:
{
  "error": "Payment Required",
  "payment": {
    "amountDisplay": "48.78 CIRC",
    "recipient": "<treasury>"
  }
}

BYPASS: Requests from 127.0.0.1/::1 (localhost) skip payment entirely — all deployed agents call freely. Server-to-server integrations can use the X-Internal-Key header with a shared secret. Each tx signature is single-use and expires 5 minutes from block timestamp.

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