X402 Protocol Integration services
Payable x402 protocol integration endpoints for agents, ranked by measured reliability.
api.axongate.one
api.axongate.one
Manages access permissions or tokens for X.402 protocol-based services.
www.tip.md
www.tip.md
tip.md - Send USDC tips on base via x402 payment protocol with CDP disbursement
web-production-8136ee.up.railway.app
web-production-8136ee.up.railway.app
Manages or verifies access credentials or permissions for x402 resources or services.
paygent.obsmetrics.com
paygent.obsmetrics.com
Leaked-credential guardrail for agents: submit a blob you are about to commit, log, post, or hand to another tool (a diff, a config, an .env, an LLM output) and get a machine-enforceable verdict - does it contain a live secret? Detects cloud keys (AWS), VCS tokens (GitHub/GitLab), provider API keys (Stripe, OpenAI, Anthropic, Google, Slack), private-key blocks, JWTs, and credentials embedded in URLs, plus high-entropy key=value assignments. Returns a risk level, the detected classes with a MASKED locator (never the secret itself, so the verdict cannot re-leak), and a REDACTED copy safe to emit onward. Deterministic, sub-second, never fetches. Detection of known secret formats - not a proof of cleanliness.
x402.sniperx.fun
x402.sniperx.fun
Health check endpoint for x402 payment flow testing
agent402.tools
agent402.tools
OpenAI-compatible chat completions priced from the request itself: the 402 quotes this exact body, from $0.001, and a buyer on the upto scheme settles the tokens actually used under that quote. Use it when an agent sends large or variable prompts and wants to pay for what it sends, not a flat tier.
x402.clashofcoins.com
x402.clashofcoins.com
Low-cost gateway health probe for real x402 settlement checks
agent402.tools
agent402.tools
Rerank documents against a query over x402 - the Cohere /rerank wire ({query, documents[], top_n} -> results with relevance_score), served by cohere/rerank-v3.5, $0.002 per call in USDC, no API key, no signup. Up to 50 documents (1,600 chars each, 40k total) and a 500-char query per call. Deterministic, so a byte-identical repeat within 10 minutes is served FREE from cache (X-Cache: hit; opt out with cache:false).
agent402.tools
agent402.tools
OpenAI-compatible text embeddings (text-embedding-3-small by default; 3-large and ada-002 supported), up to 64 inputs or 16k chars per call, returned in the standard OpenAI shape. Identical inputs repeated within 10 minutes are served free from cache. Use it for semantic search, clustering and retrieval from any OpenAI SDK by changing base_url.
x402lifeadvice.vercel.app
x402lifeadvice.vercel.app
Get one piece of thoughtful life advice, paid per request over x402.
ladyfortunalx402.vercel.app
ladyfortunalx402.vercel.app
Get a random fortune via x402 payment on Base mainnet.
x402.ottoai.services
x402.ottoai.services
Otto X402 Router — Meta Intelligence. Ask what data/service you need; get the best Otto-verified plus live CDP Bazaar x402 candidates with prices, pay_urls and blunt source labels. Non-custodial discovery.
agent402.tools
agent402.tools
Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1 and pay $0.02 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Messages wire (Claude natively, others translated). Depth: `effort` (low..max) on Claude 4.7+, thinking.budget_tokens on older Claude. Up to 32,000 input chars and 2048 output tokens; streaming supported.
agent402.tools
agent402.tools
OpenAI Responses API over x402 - point the OpenAI SDK's responses.create() (or the OpenAI Agents SDK) at base_url https://agent402.tools/v1 and pay $0.02 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Responses wire.
agent402.tools
agent402.tools
OpenAI-compatible chat completions paid per call in USDC: point any OpenAI SDK at this base URL and send a normal chat request, with the model chosen from a curated list and streaming supported. Use it when an agent needs a model answer without an API key or an account, one call at a time, with a receipt for each.
x402.twit.sh/users/by/id
x402.twit.sh
Look up a single Twitter/X tweet by its numeric tweet ID. Returns full tweet data including text, author profile, creation date, engagement metrics (likes, retweets, replies, quotes, bookmarks), and referenced tweets. Query param: id (string, required) - numeric tweet ID, e.g. GET /tweets/by/id?id=1110302988. Returns X v2 API-compatible JSON.
agent402.tools
agent402.tools
Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/nano and pay $0.003 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Messages wire (Claude natively, others translated). Depth: `effort` (low..max) on Claude 4.7+, thinking.budget_tokens on older Claude. Up to 12,000 input chars and 768 output tokens; streaming supported.
agent402.tools
agent402.tools
OpenAI Responses API over x402 - point the OpenAI SDK's responses.create() (or the OpenAI Agents SDK) at base_url https://agent402.tools/v1/nano and pay $0.003 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Responses wire.
api.xfuel.app
api.xfuel.app
OpenAI-compatible paid inference via x402 USDC on Base and Solana ($0.01). POST /v1/chat/completions is the recommended surface. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.
agent402.tools
agent402.tools
OpenAI Responses API over x402 - point the OpenAI SDK's responses.create() (or the OpenAI Agents SDK) at base_url https://agent402.tools/v1/auto and pay $0.01 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Responses wire.
x402-factory.com
x402-factory.com
Cheapest endpoint: liveness plus x402 payment pipeline check — Returns ok with the server time and whether this call was paid. Use it to verify your x402 client end to end before spending on data endpoints.
agent402.tools
agent402.tools
Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/auto and pay $0.01 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Messages wire (Claude natively, others translated). Depth: `effort` (low..max) on Claude 4.7+, thinking.budget_tokens on older Claude. Up to 16,000 input chars and 1024 output tokens; streaming supported.
api.oblique.markets
api.oblique.markets
Use when an agent needs bazaar price stats. Returns x402 Bazaar price distribution across the latest daily full-catalogue snapshot: min/p25/p50/p75/p90/max in atomic units and USD, USD price bands with shares, and per-network listing counts with median price. Optional ?network= filter. $0.002.
oblique.markets
oblique.markets
Live x402 Bazaar market pulse: trending services, call volumes, new listings, and catalog changes from daily full-catalog snapshots. Machine-readable JSON for agent-market research