time-humanize

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://x402.agentindex.world

• POST/v1/chat/completions$0.001437 models, no account, no API key, pay per call in USDC - OpenAI-compatible chat completions and AI inference gateway (Claude, GPT, Gemini, Llama, Mistral and more in one endpoint). Price: from $0.001, computed from your max_tokens × model rate × 1.10 (you sign a ceiling; unused tokens are not refunded). 20s server-side timeout - never charged if it fires; set your client timeout to 30s. Try GET /v1/chat/completions/sample.
• POST/time/humanize$0.002Human-readable relative time ('2 hours ago', 'in 3 days') between a datetime and a reference (default now).
• POST/llm/llama$0.001Llama API - pay per call, no API key. OpenAI-format chat completions on meta-llama/llama-4-maverick, pinned to DeepInfra for reliability. You sign a fixed price computed from your max_tokens; unused tokens are not refunded. 20s server-side timeout - never charged if it fires; set your client timeout to 30s. Try GET /llm/llama/sample.
• POST/base/call$0.005Generic read-only eth_call against any Base mainnet contract - pass raw calldata, get the raw return data back.
• GET/news$0.001Top Hacker News headlines right now - title, URL, score, comments. Fresh links for agents that need current tech/startup signal. Try GET /news/sample.
• POST/unit/convert$0.001Convert a value between units of length, mass, volume or temperature (C/F/K).
• POST/geo/point-in-polygon$0.001Ray-casting point-in-polygon test (planar approximation - fine for city/region-scale polygons).
• POST/base/events$0.005Smart contract event logs on Base mainnet (Base contract events) via eth_getLogs - filter by contract address and up to 4 topics, up to 2,000 blocks, raw logs with topics, data, block and tx hash.
• POST/stats/regression$0.001Ordinary least squares simple linear regression (y = slope*x + intercept) with R-squared.
• POST/base/nft-metadata$0.008NFT metadata URI for an ERC721 token on Base mainnet via tokenURI - the on-chain pointer (IPFS, HTTP, or data URI), not a fetch of the document itself.
• POST/x402-echo$0.001Cheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt. Built for agents testing wallets, Payment-Signature, facilitators and settlement. Try GET /x402-echo/sample.
• POST/validate/vin$0.002North American VIN check-digit validation (NHTSA standard, position 9) plus WMI manufacturer lookup for a small set of known codes.
• POST/money/allocate$0.001Split an integer amount of cents among N ratios with zero rounding loss (Fowler's allocation algorithm) - the parts always sum back to the original amount.
• POST/time/iso-week$0.001ISO 8601 week number, ISO year and ISO weekday (1=Monday) for a date.
• POST/base/block$0.003Fetch a Base mainnet block header and transaction hashes by number, tag (latest/earliest/safe/finalized), or hash via eth_getBlockByNumber/eth_getBlockByHash.
• POST/pdf$0.002Extract 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 generated or altered, only its structure is inferred. Try GET /pdf/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.
• POST/geo/geohash$0.001Encode a lat/lon point into a geohash string (precision 1-12 characters).

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