base-erc20-balance x402 REST usage
ERC20 token balance for a wallet on Base mainnet - balanceOf() and decimals() batched into one Multicall3 round trip.
0.003 USDC per call
per call
x402.agentindex.world
x402.agentindex.world · 118 listed services · provider site
regex-test x402 REST usage
Test a regular expression against text; returns match status, capture groups and span.
0.001 USDC per call
per call
base-live-balance x402 REST usage
Native ETH balance plus up to 20 ERC20 token balances for one wallet on Base mainnet, in a single Multicall3 round trip regardless of token count.
0.003 USDC per call
per call
base-nonce x402 REST usage
Next transaction nonce for any Base mainnet wallet via eth_getTransactionCount - how many transactions it has sent.
0.003 USDC per call
per call
pdf-to-markdown x402 REST usage
Extract a public PDF (by HTTPS URL or base64) into clean Markdown - headings and tables preserved via layout-aware parsing, plus title/author/page count/date metadata and a real token count. Text content itself is never...
0.002 USDC per call
per call
base-quote x402 REST usage
Slippage estimate, swap quote, and best DEX price on Base - compares Uniswap v2, Uniswap v3, and Aerodrome on-chain via Multicall3, returns amount received, chosen path, and price impact.
0.003 USDC per call
per call
base-total-supply x402 REST usage
Total supply for an ERC20 (normalized by decimals()) or ERC721 (raw count, no decimals) contract on Base mainnet.
0.003 USDC per call
per call
support-ticket-classifier x402 REST usage
Text classification with your own custom labels (2-20) - categorize a support ticket, a review, or any text into the best-fitting label, with a confidence score and an alternate label. Powered by Jev, falling back to a G...
0.003 USDC per call
per call
pii-detection x402 REST usage
PII detection: flag whether text contains personally identifiable information (name plus contact details, email, phone, address, government ID, financial account) with a confidence score. Powered by Jev, with an automati...
0.003 USDC per call
per call
encoding-detect x402 REST usage
Detect whether hex-encoded bytes are ASCII, UTF-8, or UTF-16 with a BOM, by decode-validity and BOM presence (not statistical language detection).
0.002 USDC per call
per call
hash-hash x402 REST usage
Compute an MD5, SHA-1, SHA-256 or SHA-512 hex digest of text.
0.002 USDC per call
per call
hash-hmac x402 REST usage
Compute an HMAC (MD5, SHA-1, SHA-256 or SHA-512) of text with a given key.
0.002 USDC per call
per call
intent-detection x402 REST usage
Intent detection: classify text as a question, request, complaint, compliment, or other, with a confidence score and an alternate label. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavai...
0.002 USDC per call
per call
json-diff x402 REST usage
Recursive diff between two JSON documents: added, removed and changed paths.
0.002 USDC per call
per call
usdc-tip x402 REST usage
Voluntarily support AgentIndex with one cent of Base USDC. Returns payer identity, a thank-you acknowledgement and an x402 settlement receipt. Use this when an agent wants to sponsor open pay-per-call infrastructure.
0.01 USDC per call
per call
base-call x402 REST usage
Generic read-only eth_call against any Base mainnet contract - pass raw calldata, get the raw return data back.
0.005 USDC per call
per call
language-detection x402 REST usage
Language detection: identify which of 20 common languages (or "other") a text is written in, with a confidence score. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavailable - under 4.5s...
0.002 USDC per call
per call
sentiment-analysis x402 REST usage
Sentiment analysis: classify text as positive, negative, or neutral with a confidence score and an alternate label. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavailable ("engine":"jev"...
0.002 USDC per call
per call
spam-detection x402 REST usage
Spam detection: classify text as spam or not spam with a confidence score. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavailable - under 4.5s guaranteed. Try GET /spam-check/sample.
0.002 USDC per call
per call
toxicity-detection x402 REST usage
Toxicity detection: classify text as toxic or not toxic (hate speech, harassment, threats, severe offensive language) with a confidence score. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or...
0.002 USDC per call
per call
validate-luhn x402 REST usage
Luhn (mod 10) checksum validation, as used by most payment card numbers.
0.002 USDC per call
per call
validate-vin x402 REST usage
North American VIN check-digit validation (NHTSA standard, position 9) plus WMI manufacturer lookup for a small set of known codes.
0.002 USDC per call
per call
claude-sonnet-api x402 REST usage
Claude Sonnet API - pay per call, no API key. OpenAI-format chat completions on anthropic/claude-sonnet-5.5, pinned to Anthropic's own OpenRouter endpoint for reliability. You sign a fixed price computed from your max_to...
0.001892 USDC per call
per call
base-chain-id x402 REST usage
Base mainnet chain ID (EIP-155) via eth_chainId - confirm which network you're actually talking to.
0.001 USDC per call
per call
base-network-info x402 REST usage
Base mainnet network info in one call: chain ID, block height, and current gas price (wei and gwei).
0.001 USDC per call
per call
fraction-simplify x402 REST usage
Simplify a fraction to lowest terms and return its decimal value.
0.001 USDC per call
per call
geo-bbox x402 REST usage
Bounding box (min/max lat and lon) enclosing a list of points.
0.001 USDC per call
per call
geo-bearing x402 REST usage
Initial compass bearing (0-360 degrees, clockwise from true north) from point 1 to point 2.
0.001 USDC per call
per call
geo-dms x402 REST usage
Convert decimal degrees to degrees/minutes/seconds, or DMS back to decimal degrees.
0.001 USDC per call
per call
geo-geohash x402 REST usage
Encode a lat/lon point into a geohash string (precision 1-12 characters).
0.001 USDC per call
per call
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