Paid API Access services
Payable paid api access endpoints for agents, ranked by measured reliability.
Exa
api.exa.ai
Neural web search and page-content retrieval for AI agents, paid per request with no API key.
cheaptokens.ai
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.
dripstack.xyz
dripstack.xyz
Paid JSON for stock-picker calls from financial newsletters and investing articles. Query params: optional `date=YYYY-MM-DD` for one UTC effective day, optional `limit`. Default (omit `date`) returns the latest UTC effective day with picks. Rows missing publication timestamps may use extractedAt for the effective day. Returns 404 when no picks exist for the day. USDC `exact` x402 on Base or Solana; amount is based on distinct attributed source posts returned.
dripstack.com
dripstack.com
Paid JSON for stock-picker calls from financial newsletters and investing articles. Query params: optional `date=YYYY-MM-DD` for one UTC effective day, optional `period=latest` (same as default), optional `limit`. Default returns the latest UTC effective day with picks. Rows missing publication timestamps may use extractedAt for the effective day. Returns 404 when no picks exist for the day. The x402 amount is based on distinct attributed source posts returned.
x402.twit.sh/communities/members
x402.twit.sh
Get a paginated list of members belonging to a specific X Community. Returns full user profiles with community role (Admin, Moderator, Member). This endpoint has no equivalent in the official X API. Query params: id (string, required) - numeric community ID; next_token (string, optional) - pagination cursor, e.g. GET /communities/members?id=1693573582226665701. Returns X v2 API-compatible JSON.
x402-key.558686.xyz
x402-key.558686.xyz
Verify the OpenAI-compatible base URL, model list contract, request shape, secret boundary, and next key-pack route before buying a URL + API key quota pack.
chat.gedx402.com
chat.gedx402.com
Voice-agent reply turn — low-latency chat after WebSocket ASR flux and smart-turn detection. POST messages[]; synthesize with POST /v1/tts/aura-2-en. Bundle: GET /v1/models?bundle=voice.
x402.aubr.ai
x402.aubr.ai
Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist.
aubrai-x402.vercel.app
aubrai-x402.vercel.app
Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist.
x402-api.aubr.ai
x402-api.aubr.ai
Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist.
charts.wdh.sh
charts.wdh.sh
A Chart.js-compatible charting endpoint: POST a standard Chart.js config — the same `{ type, data, options }` you'd hand to `new Chart()` — and get back a rendered PNG. Backed by chartsplat.com, it renders every chart type chartsplat supports: bar, line, pie, doughnut, radar, polar area, and OHLC/candlestick (financial) charts, with the full set of Chart.js options (labels, multiple datasets, colors, titles, legends, scales). Made for embedding charts as images in agent reports, dashboards, Discord/Slack messages, and trading screenshots — anywhere you need a static image, not an interactive widget.
api.chartsplat.com
api.chartsplat.com
A Chart.js-compatible charting API: POST a standard Chart.js `{ type, data, options }` — the same object you would hand to `new Chart()` — and get back a rendered PNG. Supports bar, line, pie, doughnut, radar, polar area, and candlestick/OHLC charts with the full set of Chart.js options. Pay per chart with x402 (USDC on Base) or use a Chart Splat API key — ideal for charts in agent reports, dashboards, and chat messages.
netintel.dev
netintel.dev
OpenAI-compatible chat completions gateway (alias of /v1/chat/completions for api/v1-style base URLs) — standard request shape, model chosen in the body (gpt-4o, gpt-4.1, minis, nanos). Flat $0.10 per call in USDC via x402, no API key. Free model catalog: GET /v1/models.
api.moltalyzer.xyz/api/moltbook/digests
api.moltalyzer.xyz
Historical hourly AI intelligence digests (1-24 hours lookback). Track how AI agent sentiment, topics, and narratives evolve over time. Each digest contains full analysis of that hour's agent activity.
api.metalend.tech
api.metalend.tech
Returns MetaLend API services directory with a one-line summary of each RebalancerResource endpoint plus links to API docs.
gdpr-scanner.api.klymax402.com
gdpr-scanner.api.klymax402.com
Scan a website for GDPR compliance — cookie consent, privacy policy, trackers (POST variant)
vibesprings.net
vibesprings.net
AEO/GEO Agent Visibility Auditor. Audit any third-party API endpoint for x402 compatibility, schema compliance, robots.txt indexing accessibility, and LLM tool calling clarity.
2s.io
2s.io
Find the right 2s endpoint for a task using natural language. Pass q (e.g. 'check if a domain can be spoofed', 'is this CVE being exploited', 'screen a company for sanctions', 'decode a VIN') and get back the catalog's most relevant endpoints, ranked, each with its id, API path, method, group, description, and price. Deterministic keyword + synonym matching over the live endpoint registry (no LLM, no external calls) — a self-routing index so an agent (or its planner) can discover which paid call answers a question instead of reading the whole 290+ endpoint catalog. Returns the path you then call directly.
netintel.dev
netintel.dev
OpenAI-compatible text embeddings API (alias of /v1/embeddings for api/v1-style base URLs) — input as a string or batch of up to 128 strings, model text-embedding-3-small (default) or text-embedding-3-large. Flat $0.005 per call in USDC via x402, no OpenAI account or API key.
netintel-production-440c.up.railway.app
netintel-production-440c.up.railway.app
Fetch public metadata for any GitHub repository — stars, forks, open issues, language breakdown, license, contributors, last commit date, topics, and an activity/health score — so agents can evaluate dependencies, research projects, and assess open source health without the GitHub API complexity. Pass repo as ?repo=owner/repo (GET) or {"repo":"owner/repo"} (POST).
netintel.dev
netintel.dev
Fetch public metadata for any GitHub repository — stars, forks, open issues, language breakdown, license, contributors, last commit date, topics, and an activity/health score — so agents can evaluate dependencies, research projects, and assess open source health without the GitHub API complexity. Pass repo as ?repo=owner/repo (GET) or {"repo":"owner/repo"} (POST).
2s.io
2s.io
Unified read API over US National Park Service developer.nps.gov. Pick a resource: parks (every NPS unit — historical parks, monuments, seashores, etc.), alerts (closures, dangers, info), campgrounds (NPS-operated campgrounds with reservation links), events (talks, walks, ranger programs), newsreleases (park news), thingstodo (activities by park), visitorcenters. Filter by parkCode (CSV — e.g. "acad,yose,grca"), state, or free-text query. Returns the upstream NPS payload verbatim (rich nested objects with images, addresses, operating hours, etc.).
2s.io
2s.io
English dictionary lookup via dictionaryapi.dev (Wiktionary-sourced). Returns full entries with IPA phonetic transcription(s), audio pronunciation URLs, and meanings grouped by part of speech. Each meaning carries definitions with usage examples and per-definition synonyms + antonyms. CC BY-SA 3.0/4.0 — attribute when redistributing. Useful for vocabulary agents, writing assistants, language-learning tools.
domain-intelligence.api.klymax402.com
domain-intelligence.api.klymax402.com
Get comprehensive domain intelligence (WHOIS + DNS + SSL) (POST variant)