AI & Inference APIs

LLM completions, embeddings, agents, and model gateways billed per call.

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1,533 services

BlockRun.AI · EXA Contents

blockrun.ai

✓ Curated

Extract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002.

POSTBaseAI & Inference
$0.003 / call2.5k calls / 30d

BlockRun.AI · EXA Search

blockrun.ai

✓ Curated

Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.

POSTBaseAI & Inference
$0.011 / call1.9k calls / 30d

BlockRun.AI · EXA Answer

blockrun.ai

✓ Curated

Get an AI-generated answer to a question grounded in live web search results.

POSTBaseAI & Inference
$0.011 / call1.9k calls / 30d

Token4u AI Chat API · Chat Completions

token4u.ai

gpt-4o-mini API call (~128 tokens)

POSTBaseAI & Inference
$0.009 / call1.7k calls / 30d
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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.

POSTBaseAI & Inference
$0.02 / call1.6k calls / 30d
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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.

GETBaseAI & Inference
$0.008 / call502 calls / 30d
F

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.

POSTBaseAI & Inference
$0.001 / call397 calls / 30d
O

Openwebninja · Google AI Mode AI Mode

x402.openwebninja.com

No description provided.

GETBaseAI & Inference
$0.005 / call333 calls / 30d
C

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.

POSTBaseAI & Inference
$1 / call280 calls / 30d
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X402engine · LLM Claude Haiku

x402engine.app

Anthropic's fastest model — affordable and quick for simple tasks and high throughput

POSTBaseAI & Inference
$0.02 / call265 calls / 30d

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.

POSTBaseAI & Inference
$0.000011 / call257 calls / 30d
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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.

POSTBaseAI & Inference
$0.005 / call240 calls / 30d

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.

GETBaseAI & Inference
$0.0025 / call224 calls / 30d

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.

POSTBaseAI & Inference
$0.001 / call186 calls / 30d

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.

POSTBaseAI & Inference
$0.001 / call178 calls / 30d
D

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.

GETBaseAI & Inference
$0.02 / call178 calls / 30d

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.

POSTBaseAI & Inference
$0.003 / call175 calls / 30d
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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

POSTBaseAI & Inference
$0.0012 / call173 calls / 30d
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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.

POSTBaseAI & Inference
$0.001 / call152 calls / 30d
S

Surplusintelligence · Chat Completions

api.surplusintelligence.ai

Get OpenAI-compatible inference from many models at market prices via Surplus Intelligence.

POSTBaseAI & Inference
$0.0033 / call135 calls / 30d
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Word of the Day · Word OF THE DAY

x402wordoftheday.vercel.app

Get today's curated Word of the Day (definition + part of speech).

GETBaseAI & Inference
$0.0015 / call134 calls / 30d

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¢.

POSTBaseAI & Inference
$0.01 / call133 calls / 30d
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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.

POSTBaseAI & Inference
$0.0029 / call132 calls / 30d
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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.

POSTBaseAI & Inference
$0.005 / call128 calls / 30d