x402watch

53,113 paid endpoints are listed. 31,940 answered a real 402 at the last check.

Every x402 endpoint on the Coinbase Bazaar and x402scan, probed unpaid every six hours. A listing tells you the price a seller wrote down. This tells you whether the endpoint is reachable, whether it charges what it declared, and how fast it answers. Ranked by an assay score out of 100.

Last check 2026-10-05 15:08 UTC · 53,113 probed

31,940 answering 40215,003 down5,345 rejecting825 no paywall1,219 price drift
  1. 95grokzilla.shop/api/skills/url-normalizeCanonicalize URLs: strip tracking params, force HTTPS, sort query, extract components.$0.005 Base492 ms1 payers100% up
  2. 95grokzilla.shop/api/skills/slugifyTurn free text into a URL-safe lowercase slug. Deterministic, no network.$0.003 Base502 ms1 payers100% up
  3. 95grokzilla.shop/api/skills/uuid-mintMint 1-32 UUID v4 (or v1) identifiers for agent job IDs and idempotency keys.$0.003 Base402 ms1 payers100% up
  4. 95grokzilla.shop/api/skills/json-sortRecursively sort object keys and return canonical compact JSON. Deterministic, no network.$0.003 Base397 ms1 payers100% up
  5. 95grokzilla.shop/api/skills/token-countApproximate cl100k/o200k token counts for budget decisions.$0.004 Base381 ms1 payers100% up
  6. 95api.flipvo.com/v1/npi/verifyFor 1 to 10 NPIs, the CMS NPPES status of each (active or deactivated, with deactivation and reactivation dates), provider name or organization, practice city, state and ZIP and taxonomies, plus any HHS-OIG LEIE exclusion listed under the NPI, as facts from the files: not a credential check and not a determination about the provider.$0.01 Base323 ms1 payers100% up
  7. 95evmstate.com/v1/state-batch/100Read-only EVM state API for wallet snapshots, ERC-20 balances, token allowances, contract code, block heights, and bounded eth_call reads across Ethereum, Base, Arbitrum, Optimism, and Polygon. Fixed price: $0.15 USDC on Base for a batch of up to 100 checks. Only submitted checks run. Results are provider-reported RPC data, not cryptographic proofs.$0.15 Base912 ms1 payers100% up
  8. 95api.verdixapi.com/risk/address/liteVerdix lite ($0.01): cheapest check of an EVM address on Base before you pay it: OFAC, scam/phishing lists, address poisoning, phishing tokens, flagged deployers. Clean = no_known_risk, never safe. Full check: /risk/address/quick.$0.01 Base419 ms1 payers100% up
  9. 95767-2676.com/v2/receiptSigned time-bounded witness of an agent-carried payload digest; the payload stays with the agent$0.001 Base565 ms1 payers100% up
  10. 95api.teardrop.dev/message:sendTeardrop crypto research agent over A2A: ask in plain language about token prices, DeFi yields and lending, wallet portfolios, approvals and counterparty risk, or onchain transactions; the agent plans and runs Teardrop's onchain data tools and returns a completed task. Pay per task with x402 USDC on Base.$0.01 Base413 ms1 payers100% up
  11. 95x402-seller-pmlm.onrender.com/priceToken price: live USD price + 24h change for a crypto token, read onchain (Uniswap v3 on Ethereum/Base/Arbitrum/Polygon; Orca, Raydium, PumpSwap on Solana). Pass token (ETH, BTC, SOL, PEPE... or contract/mint address), optional chain. Returns price, 24h change, pools, depth, spread, confidence, block. 0.002 USDC (Base/Polygon/Arbitrum/Solana/Avalanche/Sei). Errors are never charged: 400 bad input, 422 nothing found or target unreachable, 503 busy.$0.002 Base583 ms1 payers100% up
  12. 95x402-seller-pmlm.onrender.com/gasGas price tracker: live gas and priority fees for Ethereum, Base, Arbitrum, Polygon and Solana in one call, from public nodes. Returns base fee, slow/standard/fast tips, max fee, block congestion, and the USD cost of a transfer, an ERC-20 transfer and a swap, plus the cheapest chain. Optional chain. 0.002 USDC (Base/Polygon/Arbitrum/Solana/Avalanche/Sei). Errors are never charged: 400 bad input, 422 nothing found or target unreachable, 503 busy.$0.002 Base816 ms1 payers100% up
  13. 95factline.dev/v1/vehicle/reportDutch licence plate check in English: make, model, APK (MOT) expiry, insurance, open recalls with details, RDW odometer verdict, full APK inspection history with defects found, import/taxi/export history, specs, power, CO2, catalogue price, and risk flags. Input: Dutch licence plate. Source: RDW open data.$0.02 Base492 ms1 payers100% up
  14. 95factline.dev/v1/home/reportFull Dutch address report: building, neighbourhood (people, housing, income, energy), distances to 18 amenities, crime vs national rate, listed monuments, liveability breakdown.$0.04 Base331 ms1 payers100% up
  15. 95fiatdock.com/v1/email/checkIs this email address worth sending to? Syntax, domain DNS (MX, then A/AAAA), disposable/role/free-provider lists, a typo suggestion (gmial.com -> gmail.com), a normalized form and a risk verdict with reasons. No SMTP probe: it vouches for the domain, never the mailbox. An invalid address is a paid verdict; a DNS failure is 502, not charged. Pay-per-call via x402. An empty body is answered for the published example address (name@example.com); send {"email":"…"} for any other address.$0.001 Base585 ms1 payers100% up
  16. 95api.erb-llm.com/v1/visionOpenAI-compatible vision (image understanding) from a private, self-hosted local vision-language model. Pay per call in USDC on Base via x402 - no API key or account. Send a public image URL plus a prompt (or OpenAI image_url messages); receive a standard chat.completion JSON answering about the image. Up to 4 images per call (more are clamped). Same privacy-first operator as our Private LLM Inference chat tiers.$0.02 Base647 ms1 payers100% up
  17. 95api.erb-llm.com/v1/extendedExtended tier of a private, self-hosted LLM inference service: the highest output ceiling (32,768 tokens) on a local open-weight model for long-form writing, reports and full document drafts. OpenAI-compatible chat completions. Pay per call in USDC on Base via x402 - no API key or account. Pick the cheaper quick/long tiers for shorter work.$0.20 Base942 ms1 payers100% up
  18. 95api.debyko.com/v2/snapshots/historyAs-of snapshot of any instrument at a past moment, exactly as stored; gaps returned as gaps.$0.02 Base953 ms1 payers100% up
  19. 95lion-x402-bible.lionmaster-operations.workers.dev/api/x402/keyless-base-rpc-jsonKeyless multi-chain JSON-RPC reads, Base + Ethereum, from $0.001 (?chain=ethereum)$0.001 Base597 ms1 payers100% up
  20. 95keystone-opportunity-api.keystone-opportunity.workers.dev/v1/brief-checkDeterministically score a task brief for deliverables, acceptance criteria, deadlines, constraints, and usable scope before committing time. No AI calls; same brief always yields the same score.$0.001 Base809 ms1 payers100% up
  21. 95api.n0brains.com/x402/signalsReal-time crypto trading signals for BTC, ETH, SOL and 400+ coins — classified by type (whale flows, funding, liquidations, listings, news, on-chain), scored, with direction, confidence and conviction. Emitted signals' forward-return record is public at n0brains.com/proof. Not financial advice.$0.005 Base627 ms1 payers100% up
  22. 95orchard-data.letom1176.workers.dev/api/etf-quotesLive quotes for the four US index ETFs an agent actually needs: SPY, QQQ, DIA, IWM. Last, change and day range for each. JSON.$0.003 Base684 ms1 payers100% up
  23. 95pkgpulse.letom1176.workers.dev/api/pickRank up to 5 alternative npm packages and get a recommendation with the gap quantified: full disclosed-rubric health report per package, close calls flagged as close calls. The 'axios vs got vs undici' decision in one call. Params: ?names=a,b,c. JSON.$0.01 Base673 ms1 payers100% up
  24. 95ichimoku-signal.fizzl.eu/setupsWhich crypto coins have a trade setup right now? For 148 top-200 coins: the six-indicator confluence signal (Ichimoku, RSI, MACD, EMA 50/200, Bollinger, OBV) plus a trade plan in that direction (entry, stop, two take profit targets, risk/reward), ranked by signal strength x risk/reward. Filters: long/short, minimum risk/reward, top N. Levels from price history, not trade advice. A screener, not a strategy: in our backtest these setups did no better than random entries after fees.$0.50 Base756 ms1 payers100% up
  25. 95x402-doctor.fizzl.eu/api/v1/fixHow do I fix my broken x402 endpoint? Diagnoses it, then returns per problem the concrete change as code for your stack (Express, Next.js, Hono or raw HTTP), filled in with your own payTo, amount, network and route.$0.05 Base715 ms1 payers100% up
  26. 95ichimoku-signal.fizzl.eu/scanMarket scan: the Ichimoku Cloud signal for 148 top-200 coins in one call, sorted from strongest bullish to strongest bearish (distance from the cloud), with market breadth ("69 of 147 coins bullish"). Any interval from 1m to 1M; optional filter on bullish, bearish or neutral.$0.10 Base714 ms1 payers100% up
  27. 95ichimoku-signal.fizzl.eu/levels/:pairSupport and resistance levels, stop loss and take profit targets for a crypto pair (top 200 coins): swing highs/lows, pivots, ATR, Fibonacci retracements and Ichimoku levels, plus a long and a short plan (entry, stop, two targets, risk/reward) and the bias from the confluence signal. Levels from price history, not trade advice.$0.05 Base792 ms1 payers100% up
  28. 95plaintext.fizzl.eu/api/check-walletCheck an EVM wallet's live token/NFT approvals and get a plain-language verdict (SAFE, CAUTION or RISK) with an explanation$0.04 Base927 ms1 payers100% up
  29. 95presign-guard.fizzl.eu/v1/approvalsWallet approval audit (green/orange/red, grade, one-line summary): every open ERC-20 allowance of an EVM wallet with who the spender is (flagged, plain wallet, unverified, unlimited) and which ones to revoke. Bulk: 100 checks for $0.80 via /v1/credits.$0.02 Base834 ms1 payers100% up
  30. 95presign-guard.fizzl.eu/v1/check/explainPre-sign risk verdict plus a plain-language explanation in Dutch or English. Bulk: 100 checks for $0.80 via /v1/credits.$0.03 Base868 ms1 payers100% up
  31. 95presign-guard.fizzl.eu/v1/checkIs this transaction, approval or signature safe to sign? Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM transactions, token approvals and Permit/Permit2/EIP-3009/Seaport signatures. Screens the spender or recipient wallet for OFAC sanctions and scam, phishing or theft reports, and flags unlimited allowances, plain-wallet spenders and risky tokens. Bulk: 100 checks for $0.80 via /v1/credits.$0.01 Base826 ms1 payers100% up
  32. 95agents.supremeai.ca/v1/github/repoLook up a GitHub repository: stars, forks, open issues, primary language, license, default branch, topics, and last push time. One call, structured JSON. For open-source vetting, competitive analysis, and tracking project activity.$0.005 Base906 ms1 payers100% up
  33. 95agents.supremeai.ca/v1/health-checkProbe a public HTTP(S) URL and report availability: up/down, HTTP status, and latency in ms. Use it to check whether another paid API or x402 service is alive before spending money calling it. Public internet targets only.$0.003 Base945 ms1 payers100% up
  34. 95agents.supremeai.ca/v1/pypi/packageLook up a PyPI package: latest version, license, summary, required Python version, dependency count, homepage, and release count. One call, structured JSON. For Python dependency analysis and package vetting.$0.005 Base941 ms1 payers100% up
  35. 95astro-agent.dev/v1/vedic/reportComplete Vedic report ($0.50)$0.50 Base383 ms1 payers100% up
  36. 95api.loopholetape.com/v1/graduations/recentRecent pump.fun graduations labelled true graduation vs below-threshold close. Use to list recent pump.fun memecoin migrations and tell true graduations from below-threshold closes; not a live pre-trade rug check on one mint (use the $0.005 compact check, GET /v1/check/mint). Migrations to PumpSwap in the window (default 6 h).$0.02 Solana552 ms1 payers100% up
  37. 95gigsai.xyz/api/token/batchCall when screening several Base tokens at once, e.g. new launches: up to 10 tokens per call, same checks as /api/token/check (sell simulation, taxes, owner powers, liquidity, holders). All-or-nothing: a failed batch is not charged.$0.05 Base937 ms1 payers100% up
  38. 95mimirapi.com/v1/phone/intelPhone number intelligence for agents: pass any number and get back whether it is a valid E.164 number, its country, the carrier that holds it, and the line type — mobile, landline, or VoIP. One paid call, no account, no API key. Decide whether a number is worth calling or texting, or flag a VoIP number before you trust it. Free-format numbers are normalized; a syntactically bad number is rejected before any charge.$0.03 Base932 ms1 payers100% up
  39. 95mimirapi.com/v1/x402-auditWeigh any x402 counter and get a verdict: does its URL answer a coherent 402, would the CDP Bazaar validator accept its discovery metadata, and is it actually listed in the discovery index? Returns a per-check report (passed / found-wanting / unweighed) with evidence, optionally HMAC-signed. Three keyless checks for sellers and machine-service buyers.$0.25 Base879 ms1 payers100% up
  40. 95mimirapi.com/v1/chartData to chart in one call: a numeric series rendered as a deterministic 800x400 line or bar chart SVG with optional labels and title. No charting library, no browser — an agent composing a report gets a predictable picture of its numbers.$0.01 Base958 ms1 payers100% up
  41. 95mimirapi.com/v1/qrQR code as a crisp deterministic SVG from any text or URL up to 1000 characters, with selectable error-correction level (L/M/Q/H). Vector output scales to any size with no rasterization step.$0.002 Base782 ms1 payers100% up
  42. 95mimirapi.com/v1/og-imageDeterministic 1200x630 social-card SVG from a title and optional subtitle, dark or light theme. Same input, byte-identical output — an agent building pages gets an Open Graph image in one call with no headless browser and no font pipeline.$0.01 Base858 ms1 payers100% up
  43. 95mimirapi.com/v1/wallet/screenSanctions screen for an EVM wallet: one deterministic read of the public Chainalysis sanctions oracle contract. Call it mid-transaction before settling with an unknown counterparty — no account, no API key, one paid call returns sanctioned true/false with the oracle address for independent verification. Fail-closed: if the oracle is unreachable you get an error, never a false all-clear.$0.05 Base858 ms1 payers100% up
  44. 95mimirapi.com/v1/dbEphemeral Postgres for agents: one POST provisions a real database and returns its connection string with a TTL; teardown at expiry is automatic and guaranteed. Scratch space for a pipeline, a test run, or a day of work — priced per DB-day, no signup, no cleanup, no leftovers.$0.25 Base762 ms1 payers100% up
  45. 95mimirapi.com/v1/visual-reviewEyes for agents, for a penny: renders any URL in a real browser (Cloudflare Browser Rendering) and returns a full-page screenshot as an inline PNG plus an axe-core accessibility audit — WCAG violations with rule, impact, fix-it link, and affected-node counts. Verify a deploy visually, catch layout breakage, and check accessibility in one call, without running a browser yourself. https URLs only.$0.01 Base814 ms1 payers100% up
  46. 95mimirapi.com/v1/provenance/certificateChain-of-custody license certificate for any digital asset: a SHA-256 content hash bound to issuer, subject, and license terms under an HMAC-SHA-256 signature. Deterministic, portable, and verifiable through the issuer while the current HMAC v1 profile is active — a receipt an agent can carry to record what it licensed, from whom, and on what terms.$0.25 Base795 ms1 payers100% up
  47. 95web.tollkit.dev/web/briefSummarize a web page: give a URL, get a short summary of the page written by Claude, with its title and final URL.$0.007 Base372 ms1 payers100% up
  48. 95web.tollkit.dev/summarizeSummarize supplied text$0.005 Base560 ms1 payers100% up
  49. 95web.tollkit.dev/screenshotWebsite screenshot: give a URL, get a 1280x800 JPEG of the page rendered in a real browser, with its title, final URL and SHA-256.$0.003 Base552 ms1 payers100% up
  50. 95web.tollkit.dev/readRead any web page as clean text: give a URL, get the visible text rendered in a real browser, with the title and final URL. For scraping, RAG and research.$0.002 Base520 ms1 payers100% up
  51. 95chain.tollkit.dev/chain/tokenToken info: give an ERC-20 or SPL token address on Base, Ethereum or Solana, get its name, symbol, decimals and total supply, plus mint and freeze authority on Solana.$0.002 Base418 ms1 payers100% up
  52. 95chain.tollkit.dev/chain/balanceWallet balance$0.002 Base420 ms1 payers100% up
  53. 95base-facts.yankii.fr/v1/verdictBase token verdict for trading agents: risk level, score and flags (proxy, mint, pause, blacklist, owner, DEX liquidity on Uniswap v2/v3 and Aerodrome), each with the on-chain fact behind it. Facts and heuristics, not financial advice.$0.01 Base746 ms1 payers100% up
  54. 95base-facts.yankii.fr/v1/basenameResolve a Basename (forward or reverse)$0.002 Base883 ms1 payers100% up
  55. 95base-facts.yankii.fr/v1/txGet transaction status, fee, and decoded ERC20 Transfer events$0.003 Base783 ms1 payers100% up
  56. 95base-facts.yankii.fr/v1/gasGet current gas price information (base fee, priority fee suggestion, gas price)$0.001 Base908 ms1 payers100% up
  57. 95validate.yankii.fr/v1/validateValidate JSON data against a JSON Schema (draft-07, Ajv). Returns valid + detailed errors with instance paths.$0.01 Base941 ms1 payers100% up
  58. 95colony.automatoncolony.xyz/api/v1/x402/datos/codigo-verificadoIs the source of this Base contract verified? Returns the verification status and the runtime code hash. targetAddress required. Answered inline, no polling, with the Base block and hash it was read at. Valid 600s. Payment implies a request for immediate execution. Terms (0x2134019c6388d3c598b4e33a69416a364cccccea4735ebc8a21f6fd47c4a2dba): https://colony.automatoncolony.xyz/api/v1/legal/terms$0.0099 Base774 ms1 payers100% up
  59. 95agent-data-platform.langtools.workers.dev/v1/nsw-da/applications/:panNSW Development Applications: Full detail of one application by Planning Portal application number (e.g. PAN-624302)$0.005 Base Sepolia834 ms1 payers100% up
  60. 95agent-data-platform.langtools.workers.dev/v1/nsw-da/nearbyNSW Development Applications: Applications within a radius (max 2000 m) of a coordinate, nearest first$0.02 Base Sepolia830 ms1 payers100% up
  61. 95agent-data-platform.langtools.workers.dev/v1/nsw-da/applicationsNSW Development Applications: Search development applications, newest lodgement first. status, application_type, development_type and min_cost require council, suburb or postcode$0.01 Base Sepolia850 ms1 payers100% up
  62. 95api.keenable.ai/v1/x402/searchKeenable web search for AI agents: ranked results with title, URL and snippet for a natural-language or keyword query. Pay per request, no API key.$0.01 Base628 ms1 payers100% up
  63. 95backpedal-discourse-easeful.ngrok-free.dev/priceUSD price of any ERC-20 token on Base, resolved from Uniswap v3 pools (direct token/USDC, or via WETH hop). Deterministic, no LLM.$0.01 Base997 ms1 payers100% up
  64. 95api.flipvo.com/v1/osha/historyReturns the OSHA inspections, violations and penalties on file for an employer in a state (optional city and zip), matched by name in the US Department of Labor's inspection and violation files, as establishments with a penalty roll-up; OSHA inspections only, so an employer with none has no record and an empty result is a paid 200; it is not a determination about the employer and is not endorsed or certified by the U.S. Department of Labor.$0.02 Base559 ms1 payers100% up
  65. 95tailtrace-x402-prod.simonwakelin.workers.dev/v1/aircraft/:n_number/identifyWhat exactly is this aircraft? Resolve an aircraft by FAA N-number and return normalized identity, registration, manufacturer, model, serial and related identity evidence where available.$0.15 Base793 ms1 payers100% up
  66. 95memory.wickedapi.com/memories/searchSemantic search over an agent's own persistent memories (wallet-scoped). Free with a valid x-api-key.$0.001 Base855 ms1 payers100% up
  67. 95agdata.shveik.dev/x402/youtube-transcriptYouTube transcript API for AI agents: send a video URL or 11-character id and get its published subtitles as timed JSON segments, plain text, SRT or WebVTT, with title, channel, duration, views and publish date. Choose one of ten subtitle languages or any. No speech-to-text. A video without subtitles in that language is not charged.$0.028 Base801 ms1 payers100% up
  68. 95agdata.shveik.dev/x402/screenshotScreenshot API for AI agents: send {url} and get a JPEG, PNG, WebP or PDF of the page as base64 in JSON, with final URL, byte size and pixel size. Pick a desktop, mobile or tablet viewport, full page, dark mode, a delay or one element by CSS selector. It shows what a normal browser sees and does not get past bot protection (use unblock for those pages' text). A page that can't be captured, or renders blank, is not charged.$0.015 Base766 ms1 payers100% up
  69. 95api.mekler.ai/v1/research/citations/check-source-overlapCheck source overlap before counting corroboration. Supply 2-10 URLs, optional article HTML and citation chains. Returns duplicate URLs, shared links and supplied-source groups with locations. No fetching, truth or independence verdict. Schemas: /openapi.json.$0.05 Solana750 ms1 payers100% up
  70. 95fronterasignal.com/api/v1/nearbyProjects near an address$0.03 Base801 ms1 payers100% up
  71. 95fronterasignal.com/api/v1/materialsBuilding material shelf prices$0.01 Base941 ms1 payers100% up
  72. 95fronterasignal.com/api/v1/cost-per-sqftUse to check whether a commercial building budget in the Rio Grande Valley, Texas is in line: median and 25th-75th percentile of filed estimated cost per square foot over the last 24 months, by county (Hidalgo, Cameron, Starr, Willacy) and type of work (new construction, renovation, addition), with n. For estimating, appraisal and lending checks. Filed estimates, not bids. Example: "What does new commercial construction cost per square foot in Hidalgo County right now?"$0.03 Base746 ms1 payers100% up
  73. 95fronterasignal.com/api/v1/companiesCompany track record$0.02 Base926 ms1 payers100% up
  74. 95fronterasignal.com/api/v1/projectsNew commercial projects$0.03 Base735 ms1 payers100% up
  75. 95402post.com/v1/postsPublish a listing on 402post, the classifieds board for AI agents: $0.10 USDC for 30 days. POST the listing as JSON; a bad one gets a free 422 with every error, a good one gets this 402. Dry run: POST /v1/posts/validate. Batch: {"listings":[…]}, 1-15 in one payment: $1.00 for 10-15, else $0.10 each. Same service: feature https://402post.com/v1/featured; renew https://402post.com/v1/renewals.$0.10 Base743 ms1 payers100% up
  76. 95api.solenrich.com/entrypoints/wallet-link-check/invokeSame-owner confidence (0-1) and verdict for two Solana wallets: direct transfers between them, first funders (one step back), age and activity of the new wallet, x402 payments it has received, risk flags. Thin evidence gives UNCERTAIN. Built for x402 trust monitors checking a payout-wallet change.$0.03 Solana607 ms1 payers100% up
  77. 95fronterasignal.com/api/v1/series/labor-rangesLabor and financing conditions$0.05 Base489 ms1 payers100% up
  78. 95fronterasignal.com/api/v1/series/callsForecast track record$0.05 Base308 ms1 payers100% up
  79. 95backpedal-discourse-easeful.ngrok-free.dev/gasLive Base (L2) gas oracle: current gas price, base fee, and blob base fee in gwei, plus low/standard/fast max-fee suggestions. Deterministic, no LLM.$0.01 Base587 ms1 payers100% up
  80. 95402post.com/v1/featuredPut your 402post listing at the top of its lists for 7 days: $0.50 USDC. POST {post_id, key}: the listing id and the edit key returned when you published. Same service: publish https://402post.com/v1/posts; renew https://402post.com/v1/renewals.$0.50 Base345 ms1 payers100% up
  81. 95mem0-cloud.saastemly.com/v1/memoriesDelete your stored memories, like mem0's delete memory and delete all memories. With memory_id: deletes that one memory (404 if it is not yours). Without it: deletes up to 200 of your memories matching user_id, agent_id, app_id or run_id (at least one), and says if more remain. Requires your memory_key (a secret string you generate): other keys cannot delete your memories.$0.002 Base689 ms1 payers100% up
  82. 95mem0-cloud.saastemly.com/v3/memories/searchSearch your stored memories by meaning, like mem0's search: embeds the query and returns the closest memories with a relevance score from 0 to 1. Only memories stored under the same memory_key (your secret string; required) are searched. filters must name at least one of user_id, agent_id, app_id, run_id. Returns {results:[{id, memory, score, metadata, ...}]}.$0.004 Base661 ms1 payers100% up
  83. 95mem0-cloud.saastemly.com/v3/memories/addStore memories from a conversation, like mem0's add: an AI model extracts durable facts about the user from the messages (or, with infer=false, stores each message as is), embeds them and saves them privately under your memory_key (a secret string you generate; required). Identical facts are stored once. Needs at least one of user_id, agent_id, app_id, run_id. Memories are kept for 365 days. Returns {event_id, status, results:[{id, memory, event: ADD|NONE}]}.$0.008 Base654 ms1 payers100% up
  84. 95visionflow-match.saastemly.com/v1/homographyLocate a pattern image inside a larger image even when it is scaled, rotated or viewed at an angle: ORB or SIFT feature matching plus cv2.findHomography with RANSAC. Returns whether it was found, the 3x3 homography (pattern pixels to image pixels), the four projected corners, the bounding box, and the inlier count as confidence. Use it to find a UI element, logo or object in a screenshot or photo.$0.004 Base652 ms1 payers100% up
  85. 95visionflow-match.saastemly.com/v1/feature-matchMatch local features between a pattern image and a larger image: detects ORB or SIFT keypoints in both, matches them with a brute-force matcher and Lowe's ratio test (OpenCV BFMatcher.knnMatch), and returns the good matches as point pairs sorted by distance. Use it to see which parts of a pattern are present and where, even when the pattern is scaled or rotated; for the pattern's outline use /v1/homography.$0.004 Base639 ms1 payers100% up
  86. 95visionflow-match.saastemly.com/v1/template-matchFind where a small pattern image (a button, icon, logo or crop) appears inside a larger screenshot or picture, using OpenCV cv2.matchTemplate. Returns the best position, plus every non-overlapping position scoring above the threshold, as pixel boxes with scores. Use it for exact-looking pixel patterns at the same scale; for different scale, rotation or perspective use /v1/homography.$0.003 Base635 ms1 payers100% up
  87. 95x402.freeq.one/tools/webhook_catchEphemeral webhook receiver. Creates a single-use HTTPS URL that catches any POST (Stripe, GitHub, internal) for 1 hour; senders pay nothing. Read captured events for $0.01 per read, extend for $0.05/hour. Response returns hook_url, read_url, extend_url, expires_at.$0.05 Base661 ms1 payers100% up
  88. 95www.blockchainiq.co/api/x402/v1/rwaTokenized real-world assets (RWA) market data: total tokenized market cap, breakdown by asset type and the largest tokenized assets with their market caps. Use to size the RWA and tokenization market or compare tokenized products. JSON, no API key. $0.02 per call. Blockchain IQ.$0.02 Base913 ms1 payers100% up
  89. 95www.blockchainiq.co/api/x402/v1/pricesBulk crypto prices in one call: live USD price, market cap, rank, 24h volume, 24h/7d/30d change and all-time high for the top 250 coins by market cap plus the smaller names we track (280+ coins). Use for screening, ranking, top gainers and losers, portfolio valuation or building a market table without hundreds of single lookups. Refreshed every minute. JSON, no API key. $0.02 per call. Blockchain IQ.$0.02 Base860 ms1 payers100% up
  90. 95lin-desk-x402.lindesk.workers.dev/v1/domainUse when an agent needs to check whether a domain or an email's domain is real, new, disposable or spoofable before outreach/KYC: DNS (A/AAAA/MX/NS), SPF and DMARC parsing, RDAP registration age and registrar, disposable-provider flag, 0-100 score and verdict. $0.003 per call, USDC on Base (x402). No SMTP probing; email local part is never sent upstream or logged. Upstream errors are not charged.$0.003 Base759 ms1 payers100% up
  91. 95lin-desk-x402.lindesk.workers.dev/v1/base/tokenUse when an agent needs a quick ERC-20 contract check on Base before trading or accepting a token: name/symbol/decimals/total supply, owner and whether ownership is renounced, EIP-1967 / legacy proxy (upgradeable) detection, flags. $0.003 per call, USDC on Base (x402). Read-only; not security advice. Non-contract addresses and upstream errors are not charged.$0.003 Base645 ms1 payers100% up
  92. 95lin-desk-x402.lindesk.workers.dev/v1/timetoolsDeterministic time/timezone tools for AI agents: unix↔ISO, tz convert, add/diff, strftime format/parse. $0.001 per call, USDC on Base (x402). Max body 100 KiB. No network I/O, no wall-clock now (client supplies times). Failures are not charged.$0.001 Base593 ms1 payers100% up
  93. 95api.keenable.ai/v1/x402/fetchKeenable page fetch for AI agents: the page at a URL as clean markdown with title and description. Pay per request, no API key.$0.01 Base611 ms1 payers100% up
  94. 95agent-intelligence-platform.fhochard.workers.dev/v1/experiments/procurementPrioritize live EU procurement opportunities for a supplier CPV profile, with ranked fit, deadline and published value context in one answer.$0.01 Base529 ms1 payers100% up
  95. 95eltociear-skill-audit.hf.space/audit/registryScan the newest servers in the official MCP registry for supply-chain risk — no input required$0.005 Base463 ms1 payers100% up
  96. 95vennatta-core.onrender.com/api/v1/evidence/compareCompare two supplied public-source text versions and return bounded, hash-backed evidence of change.$0.01 Base424 ms1 payers100% up
  97. 95api.verdixapi.com/risk/address/quickVerdix quick tier ($0.02): fast screen for small, routine transfers (under ~$100) before sending funds on Base. Checks OFAC sanctions, scam/phishing/exploit lists, live address-poisoning lookalikes, burn addresses, and contract/deployer signals (phishing-lure tokens, flash-loan-receiver contracts, flagged/unverified deployers), plus a fast on-chain address-age read. Returns safe/caution/danger with reasons; "safe" is not a guarantee.$0.02 Base884 ms1 payers100% up
  98. 95api-test.keenable.ai/v1/x402/searchKeenable web search for AI agents: ranked results with title, URL and snippet for a natural-language or keyword query. Pay per request, no API key.$0.01 Base Sepolia549 ms1 payers100% up
  99. 95backpedal-discourse-easeful.ngrok-free.dev/summarizeExtractive summary of an English text: returns the most important sentences. Deterministic, no LLM.$0.01 Base344 ms1 payers100% up
  100. 95market.561.group/v1/pacing/analysisPacing Analysis: the full analyzePacing report over caller-submitted biometric observations -- rolling baselines, morning deviation, resting-heart-rate threshold estimate, and conservative PEM risk flags, each with citations and epistemic labels. Stateless: nothing submitted or computed is stored.$0.05 Base699 ms1 payers100% up