AI & Inference APIs
LLM completions, embeddings, agents, and model gateways billed per call.
1,533 services
BlockRun.AI · EXA Contents
blockrun.ai
Extract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002.
BlockRun.AI · EXA Search
blockrun.ai
Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.
BlockRun.AI · EXA Answer
blockrun.ai
Get an AI-generated answer to a question grounded in live web search results.
Token4u AI Chat API · Chat Completions
token4u.ai
gpt-4o-mini API call (~128 tokens)
Aubr · Chat Encrypted
x402-api.aubr.ai
Send an HPKE-encrypted prompt to the Aubrai chat agent running inside an attested private enclave. Only the enclave can decrypt your message.
StationFX · Query
stationfx.com
Function marketplace for AI agents. Browse economic data, computed signals, and deterministic functions across 12 categories. Pay per call in USDC on Base via x402. No API keys, no subscriptions. Search the catalog free at /discover/search, inspect before buying at /discover/{listing_id}, pay only to query.
FarOut LLM Gateway · Chat Completions
farouter.tech
[OI]-compatible LLM inference API for autonomous agents. Supports reasoning, coding and chat workloads. Pay with USDC on Base using x402 (upto scheme, true-up billing): the 402 quotes a spending CAP (estimated input tokens + your max_tokens at the model's per-1M price), and after the model answers you are settled for the ACTUAL usage — always <= the cap, never more. Minimum $0.001, cap $3.0 per call. Cached input bills at 10%. Failed calls are never charged. Any model from GET /v1/models.
Openwebninja · Google AI Mode AI Mode
x402.openwebninja.com
No description provided.
CheapTokens AI Inference · BUY
cheaptokens.ai
OpenAI-compatible LLM inference and chat completions via discounted Venice API credits. Pay USDC to receive a live Venice.ai API key for /api/v1 models, chat, images, audio, video, and embeddings. Same-Day credits are 30–90% below Venice direct and expire at 23:59 UTC; Prepaid API Keys support recurring agent jobs.
X402engine · LLM Claude Haiku
x402engine.app
Anthropic's fastest model — affordable and quick for simple tasks and high throughput
OpenRelay Premium Chat · Chat Completions
openrelay.hggfffdfy687.workers.dev
OpenAI-compatible chat completion (branded tier). $0.10/1M tokens, min $0.0010/request. USDC on Solana or Base.
Orthogonal · Chat Completions
x402.orthogonal.com
Send a conversation to a model and get a completion back. Works exactly like the OpenAI chat completions endpoint. Pass messages and a model slug, get a response with the assistant's reply. Supports streaming for real-time token delivery, tool calling for function execution, structured outputs via response_format, and controllable reasoning depth on supported models. | ERROR: Unable to calculate price.
2s · Stocks Earnings Surprises
2s.io
Historical quarterly earnings surprises for a US-listed company — reported (actual) EPS vs the analyst consensus estimate, the absolute surprise, and the surprise percentage, for the most recent quarters (newest first). Pass ticker (optionally limit). Tells you whether a company has been beating or missing expectations. Data by Finnhub.
Delx Array Uniq · ARR Uniq
api.delx.ai
Deduplicate a list preserving order. Call when you unique agent keys without sorting. Returns unique items and count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.
Delx Abs N · ABS N
api.delx.ai
Absolute value of a number. Call when you need magnitude from signed deltas or balances. Returns absolute numeric value for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.
Domain WHOIS & DNS Lookup · Domain Info
api.kadec0.xyz
Domain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain.
Chat completions - nano tier · Chat Completions
agent402.tools
OpenAI-compatible chat completions, nano tier: gpt-5.6-luna, gpt-5-nano, gemini flash-lite, small llama/ministral/qwen, deepseek-chat - $0.003 per call in USDC over x402, priced for high-frequency agent loops. Same wire format as /v1/chat/completions with loop-sized caps (12k chars in, 768 tokens out). Streaming supported (stream: true). No API key, no signup.
DexL Agents · Agents RUN
agents.dexl.io
Run a DexL agent: the model reasons, calls tools when it needs them, and returns an answer - paid per run with x402
GEDX402 Chat · Chat Completions
chat.gedx402.com
Multi-model chat completions. POST messages[] and set model to any LLM id from GET /v1/models; dynamic USDC pricing scales with model and token usage. Hero: GET /heroes/chat-completions.
Surplusintelligence · Chat Completions
api.surplusintelligence.ai
Get OpenAI-compatible inference from many models at market prices via Surplus Intelligence.
Word of the Day · Word OF THE DAY
x402wordoftheday.vercel.app
Get today's curated Word of the Day (definition + part of speech).
Vaaya · Tikhub Fetch
vaaya.ai
TikHub — 742 per-call social-data endpoints (GET) across douyin/tiktok/weibo/instagram/bilibili/zhihu/kuaishou/youtube & more. Pass { endpoint, ...params } (params per endpoint; most reads take username/user_id/keyword + pagination_token). Find endpoints via vaaya/discover or the social-data knowledge doc. Most calls 1¢.
Telnyx · Chat Completions
x402.telnyx.com
Frontier chat completions via Telnyx Inference (MiniMax M2.7). OpenAI-compatible. $0.002856 USDC per call — no API key, no signup, pay per request.
Loyalspark · X402 Gateway Merchant Profile
api.loyalspark.online
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.