The open discovery layer for x402 services — 24506 verified service entries, LLM-ranked recommendations via /api/v1/ask, and service cards with payment, call, and quality metadata.

Add your API

Aggregated from public x402 sources — x402scan, awesome-x402, Coinbase CDP Bazaar, pay-skills PRs — plus our own crawling and provider self-submissions. Every entry is de-duplicated across sources, liveness-probed (health + on-chain payment demand), and passed through ingestion filters (bare-IP / dead-host removal) before listing — distilling tens of thousands of raw endpoints down to 24506 verified services.

Overall Stats

Live counters across the directory and discovery API

Services indexed
24506
x402 APIs · MCP · agent tools
Healthy
10060
last health check < 6 h
Categories
210
crypto · agent · data · LLM …
Chains
86
base · solana · arbitrum · …

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 ATXP — The Account for AI Agents A 10.000
2 Bitrefill x402 A 10.000
3 ACP - Virtuals Protocol A 10.000
4 api.onesource.io A 10.000
5 OneSource - Ethereum RPC for AI Agents A 10.000
6 BotPay — AI Agent Payment Network and x402 Infrastructure A 10.000
7 blockrun.ai A 10.000
8 blockrun-web-vbsbhh7lea-uc.a.run.app A 10.000
9 enrichx402.com A 10.000
10 StableStudio A 10.000
11 Clash of Coins A 10.000
12 Clash of Coins A 10.000
13 MERX - TRON Resource Exchange A 10.000
14 Otto AI x402 — Market Intelligence, DeFi & Tools A 10.000
15 gotobi.hugen.tokyo A 10.000
16 Weather API A 10.000
17 mailcheck.hugen.tokyo A 10.000
18 Scout — Multi-source Intelligence API A 10.000
19 intel.hugen.tokyo A 10.000
20 Visual API A 10.000

All services

Crawled from awesome-x402, CDP Bazaar, x402scan and manual submissions · refreshed daily.

“DevX Voice” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call speech-to-text, text-to-speech, translation and OCR for AI agents. x402 v2, USDC on Base, no account or API key. Price is computed from the input (audio minutes, characters, images) and returned in the 402 quote; failures are never charged. Runs on Cloudflare Workers AI open models (Whisper large-v3-turbo, MeloTTS, M2M100, Gemma 4).

  • Speech to text (Whisper, transcribe audio + VTT), text to speech, translation (100 languages) and OCR (image to text) for agents, pay per call.

“flinttech-x402.f1intt3ch.workers.dev” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“io.github.Alisammour/storyflo-mcp” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“MoneyTools Transcripts” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • MoneyTools Transcripts: value-added transcript and subtitle generation for agents — timestamped segments, SRT and VTT subtitles, language detection, word count and duration, optional short summary. Accepts media you have the right to process (direct file URLs, signed one-time uploads, or base64: WAV/MP3/M4A/MP4/WebM/OGG/FLAC). Platform page URLs (YouTube, Instagram, TikTok, etc.) are refused. 0...

  • Our own product (MoneyTools). MoneyTools Transcripts — Pay-per-call transcript and subtitle generation for agents. Upload or link audio → full text, timestamped segments, SRT/VTT, language detection, word count/duration (optional summary). Exact x402 Base USDC: $0.002/started minute (min $0.003). Free quote + 3 free jobs/day. Value-added transcript/subtitle service — not raw speech-model API access. Docs: https://speech.moneytools.dev/llms.txt?utm_source=agent-tools

“NexusAPI — 444 Paid Endpoints for AI Agents” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Relaystation” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call agent infrastructure: file storage & handoff, compute tools, messaging, e-sign, KYC.

  • Pay-per-call agent infrastructure with x402 micropayments: durable file storage and handoff (batons), 150+ compute ops (PDF, data/CSV, image, audio/video, text), agent-to-human messaging, e-signatures, identity verification, sanctions screening, and agent contracts. Sub-cent USDC/EURC pricing on Base; no account required. ([MCP](https://api.relaystation.ai/mcp)) ([Docs](https://relaystation.ai/api-reference))

“sift.srv1996466.hstgr.cloud” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“tgw-mindset-api.fly.dev” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Utilia Solana Preflight” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Paid Solana transaction diagnostics, simulation, fee estimates, and token risk analysis.

  • Deterministic Solana transaction simulation, confirmed-transaction diagnostics, priority-fee, and SPL token-risk APIs plus bounded PDF and audio transforms, payable in USDC through x402 v2 at $0.002-$0.01 per call. No signup or API key; hosted MCP settles on Solana and explicit HTTP aliases support Base. Includes OpenAPI, x402 discovery, and an on-chain Solana agent identity. ([Discovery](https://api.utilia.ink/.well-known/x402) | [MCP](https://api.utilia.ink/mcp) | [OpenAPI](https://api.utilia.ink/openapi.json) | [On-chain identity](https://8004market.io/agent/solana/mainnet-beta/1462))

“x402 Web Extract” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“x402-web-tools.microtools-x402.workers.dev” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Premium agentic endpoint for audio-description-mcp.

    B7.8 model-context-protocol-mcp base $0.1000 USDC / call
  • Premium agentic endpoint for audio-watermarking-detector-mcp.

    B7.8 model-context-protocol-mcp base $0.1000 USDC / call
  • Premium agentic endpoint for audio-anonymizer-voice-scrambler-mcp.

    B7.8 model-context-protocol-mcp base $0.0800 USDC / call
  • —

    B+8.2 x402 basesolanapolygonarbitrum $0.0200 USDC / call
  • Voix off française par IA neuronale : publicité 30 secondes, narration livre audio, message IVR accueil téléphonique. 3 voix fr-FR, échantillon gratuit de votre texte, droits commerciaux inclus, livraison 24h.

    B6.9 utility baseeip155:8453 $0.0100 USDC / call
  • Converts text (up to 4000 characters) to natural-sounding speech using Google Gemini 3.1 Flash TTS and returns a hosted WAV audio URL.

    C4.3 general $0.0017–$0.0800 USDC
  • Takes a voice recording and a music bed and returns one mixed file in which the music is pulled down by the voice through an ffmpeg sidechain compressor. Threshold, ratio, attack and release are all settable and all reported back with the result, because they are the difference between a mix that breathes and one that pumps: a release under 100 ms makes the bed audibly flutter between words, ab...

    A9.1 general eip155:8453 $0.0020–$0.0100 USDC
  • Introductory pricing. Catalogue narration: 0.005 USDC on Base, up to 1,000 characters, MP3. Seven English voices. No account, reference upload or human approval. Read https://api.neurodynamic.tech/narration. Authorisation verified before work; settlement after successful audio. Retry identical body and proof for 12 hours without a second charge. Generated audio may be reviewed privately by the ...

    B7.8 general eip155:8453 $0.0050 USDC / call
  • Curated audio-news: search articles, narrated audio, vertical briefings, topic subscriptions.

    B6.8 model-context-protocol-mcp base $0.0200 USDC / call
  • api.x-402.online
    ● healthy

    Transcribe the actual audio of a YouTube, TikTok or Instagram video with Whisper large-v3. Not caption scraping: the audio is downloaded and run through speech recognition, so it works on videos with no subtitles, in any language, and on TikTok and Instagram where no caption track…

    B+8.6 general eip155:8453solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0200 USDC / call
  • Transcribes audio files to text using the nb-Whisper large model via an OpenAI-compatible API endpoint

    C4.3 general $0.0004–$0.0040 USDC
  • dicta-notes.com
    ● healthy

    Live streaming speech-to-text for voice agents: buy a prepaid session, stream mic or call audio over WebSocket, get partial transcripts as the speaker talks. No account, no API key, no per-minute minimum — flat USDC on Base. Multilingual with mid-sentence code-switching. This SKU: 5 minutes connected time at $0.06 flat.

    B6.9 general eip155:8453 $0.0600–$0.5900 USDC
  • Speech-to-text, text-to-speech, and audio intelligence API — transcribe, synthesize, and analyze audio and video at scale.

    C4.3 general base $0.0100 USDC / call
  • Pay-per-use AI audio transcription API. Transcribe short MP3 and WAV audio files using Whisper Large V3 Turbo. No account or API key required. Pay with USDC on Base. 0.02 USDC per request. Maximum 120 seconds and 2 MB; MP3 and uncompressed PCM WAV only. Returns JSON: text, detected language, duration and timestamped segments. Charged only when a transcript is returned.

    C+5.9 general eip155:8453 $0.0200 USDC / call
  • Paid text-to-speech via x402. WAV audio in 31 languages, OpenAI-compatible, no API keys.

    B+8.3 ai baseeip155:8453 $0.0010–$0.0100 USDC
  • Transcript+: audio/video URL or upload to a speaker-labelled (diarized) transcript, summary, chapters and SRT/VTT captions. Priced per audio minute.

    B7.4 general eip155:8453 $0.0500 USDC / call
  • VoxSift
    ● healthy

    Metered speaker-aware audio transcription for autonomous agents. Submit a public HTTPS audio or video URL and receive deterministic transcript JSON with timestamps, optional speaker diarization, confidence metadata, and actual-duration x402 settlement.

    B6.5 utility baseeip155:8453 $0.2000 USDC / call
  • How many <audio> elements does the page have? Fetches the URL and counts audio tags (plus, where relevant, how many have alt/src/href/type attributes), and the page's total element count for scale. Structural audits and template comparisons in one number. $0.01 per page.

    B6.9 general eip155:8453eip155:84532 $0.0010–$0.0100 USDC
  • api.textus.dev
    ● healthy

    Textus: structured content with editable baseline direction, characters and scenes for audio, games and media production. One purchase returns one selected text unit as JSON; no audio or provider execution. Find IDs, metadata, prices and availability: https://api.textus.dev/api/v1/resources.json

    C+5.7 general eip155:8453 $0.4900 USDC / call
  • Synthesizes speech from text with the chosen voice and model, and returns the asset with the audio URL in results. The language is detected from the text when not given.

    C+6.1 general eip155:8453 $0.1200–$4.5000 USDC
  • Pay-per-call transcription of audio or video up to 10 minutes using whisper large-v3-turbo. POST JSON {url, format: text|vtt|srt, language} or the raw file (max 25 MB). 99 languages. Not charged if processing fails. OpenAPI: https://countable-uncle-throbbing.ngrok-free.dev/openapi.json

    C4.3 general lightning
  • B2B only. Paying accepts AGB/terms https://x402.nexari.cloud/legal/agb/58bf28adb3823f1418b74e12f1995e5e8629ccbf6fb7d73b6174355c14f1411f. business_name required. Transkription mit Sprechertrennung bis 2 Min Audio (pyannote + Whisper), verarbeitet in Deutschland. Speech-to-text with speaker diarization for audio up to 2 min, German-optimised, processed in Germany. Provider runs a monthly paid sel...

    C+5.9 general eip155:8453 $0.0010–$0.0400 USDC
  • Transcribe audio to text. Supports MP3, WAV, M4A, OGG, FLAC, WebM. Returns { text }.

    C4.3 general base $0.0030 USDC / call
  • Need that tweet? Maybe the audio from a video you saw? Cobalt402 is here to help you get the media you need

    C+6.1 utility baseeip155:8453 $0.0100 USDC / call
  • Text to speech (TTS) API: speech synthesis in 1 of 10 standard voices (5 male M1-M5, 5 female F1-F5) across 31 languages, up to 500 characters, returned as inline WAV audio. Use it to: give an agent a spoken reply, read an alert aloud, narrate a short UI prompt, add voice to a chatbot response, speak a confirmation message. Cheapest tier. USDC on Base via x402, no API key, no signup.

    B+8.3 general eip155:8453 $0.0010–$0.0100 USDC
  • DevX Voice
    ● healthy

    Speech to text (Whisper, transcribe audio + VTT), text to speech, translation (100 languages) and OCR (image to text) for agents, pay per call.

    B8.0 ai basepolygonarbitrumeip155:43114eip155:196 $0.0010–$0.0020 USDC
  • Transcribes an audio or video URL and returns the transcript, WebVTT subtitles, and an editor's cut list marking dead-air segments with estimated time savings.

    C4.3 general $0.0020–$0.0500 USDC
  • venice.ai
    ● healthy

    Privacy-focused AI inference — text, image, audio, video, embeddings via OpenAI-compatible API; hosts models from OpenAI, Anthropic, Google Gemini, xAI, DeepSeek, Mistral, Qwen, GLM, Llama, Kimi, and more.

    C4.3 general base $0.0010 USDC / call
  • Paginated library list. Filter with ?kind= (video|audio|image|gif|asset|source|stock), ?source= (upload|generated|import-url|stock), ?tag= (exact tag) so a real library isn't an undifferentiated soup.

    C4.8 general eip155:84532 $0.0100 USDC / call
  • Skavio Flow and API turn documents into business data. Transcribe, Meeting and File Toolbox process audio, meetings, PDFs, images and media.

    B7.8 crypto baseeip155:8453 $0.0200–$0.0500 USDC
  • trymimetic.com
    ● healthy

    Generate a short-form video from a text prompt. Produces a 5-15 second video in 9:16 (TikTok/Reels), 16:9 (YouTube), or 1:1 (Instagram) format with synchronized audio. Returns a polling URL — video ready in ~2 minutes.

    C+5.8 general eip155:8453 $10.0000 USDC / call
  • Generates a high-quality 720p video (without audio) from a text prompt using Google Veo 3 Fast, returning a job ID to poll for the completed video.

    C4.3 general $0.4025–$3.6800 USDC
  • Transcript Pack by Rowan Vale: AI-generated transcripts, captions and show notes from your audio. Pay per pack with Lightning or USDC on Base.

    B7.1 utility baseeip155:8453 $0.1000–$0.4500 USDC
  • Transcribe a direct public HTTPS audio URL (MP3 or uncompressed WAV, up to 2 MB) with Whisper large-v3-turbo. Returns a JSON transcript: text, detected language, duration and timestamped segments. 0.06 USDC per request, charged only on success.

    C4.3 general
  • Transcribe a direct public HTTPS audio URL (MP3 or uncompressed WAV, up to 2 MB) with Whisper large-v3-turbo. Returns a JSON transcript: text, detected language, duration and timestamped segments. 0.06 USDC per request, charged only on success.

    C4.7 general eip155:84532
  • Seedance 2.0 — parametric text-to-video: choose duration (4-15s), resolution (480p/720p/1080p), ratio, seed, audio. Price scales with duration × resolution.

    B6.6 general eip155:8453 $0.9800 USDC / call
  • NoJunk Speech
    ● healthy

    Pay-per-call speech and language tools for agents: transcribe audio (URL or base64, up to 20 MB / about 10 minutes) to text with timestamps and detected language, turn text into natural MP3 speech, or translate text between 100 languages. USDC on Base via x402; you are only charged when a valid result is returned.

    B+8.0 utility baseeip155:8453 $0.0020–$0.0200 USDC
  • Relaystation
    ● healthy

    Pay-per-call agent infrastructure with x402 micropayments: durable file storage and handoff (batons), 150+ compute ops (PDF, data/CSV, image, audio/video, text), agent-to-human messaging, e-signatures, identity verification, sanctions screening, and agent contracts. Sub-cent USDC/EURC pricing on Base; no account required. ([MCP](https://api.relaystation.ai/mcp)) ([Docs](https://relaystation.ai/api-reference))

    D4.0 model-context-protocol-mcp
  • DevX Voice
    ● healthy

    Pay-per-call speech-to-text, text-to-speech, translation and OCR for AI agents. x402 v2, USDC on Base, no account or API key. Price is computed from the input (audio minutes, characters, images) and returned in the 402 quote; failures are never charged. Runs on Cloudflare Workers AI open models (Whisper large-v3-turbo, MeloTTS, M2M100, Gemma 4).

    B7.9 utility baseeip155:137eip155:196eip155:42161eip155:43114eip155:8453 $0.0010–$0.0020 USDC
  • v0.2.0. Remote MCP server (Streamable HTTP) with 8 paid tools: read_url ($0.002) public page to clean Markdown (robots.txt respected, private IPs blocked, no paywall bypass); read_url_safe ($0.003) + heuristic prompt-injection flag; read_pdf ($0.006) PDF to Markdown; transcribe_audio ($0.01/file) Whisper, up to 25 MB / 10 min, timestamps, SRT/VTT; search_papers ($0.005) scholarly search with year/

    C4.3 general base $0.0020–$0.0050 USDC
  • Our own product (MoneyTools). MoneyTools Transcripts — Pay-per-call transcript and subtitle generation for agents. Upload or link audio → full text, timestamped segments, SRT/VTT, language detection, word count/duration (optional summary). Exact x402 Base USDC: $0.002/started minute (min $0.003). Free quote + 3 free jobs/day. Value-added transcript/subtitle service — not raw speech-model API access. Docs: https://speech.moneytools.dev/llms.txt?utm_source=agent-tools

    B7.5 ai base $0.0030 USDC / call
  • Deterministic Solana transaction simulation, confirmed-transaction diagnostics, priority-fee, and SPL token-risk APIs plus bounded PDF and audio transforms, payable in USDC through x402 v2 at $0.002-$0.01 per call. No signup or API key; hosted MCP settles on Solana and explicit HTTP aliases support Base. Includes OpenAPI, x402 discovery, and an on-chain Solana agent identity. ([Discovery](https://api.utilia.ink/.well-known/x402) | [MCP](https://api.utilia.ink/mcp) | [OpenAPI](https://api.utilia.ink/openapi.json) | [On-chain identity](https://8004market.io/agent/solana/mainnet-beta/1462))

    D4.0 high-volume-production-deployments
  • Generates a short video clip with native audio from a text prompt using Google Veo 3.1 Fast, returning a job ID to poll for the finished video URL.

    C4.3 general $0.5600–$1.2000 USDC
  • Adds a pre-recorded audio program to a radio station owner's library so it can fill unsold airtime slots and earn listener tips.

    C4.3 general $0.0500–$0.2500 USDC
  • aiarena.lol
    ● healthy

    One minute-block of AI play-by-play for an AIARENA match. Procedural commentary lines plus TTS audio. $0.02 USDC per block, x402 on Base.

    B+8.0 general baseeip155:8453solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0200 USDC / call
  • AI image generation

    B6.8 x402 eip155:8453 $0.0100–$0.0300 USDC
  • Onchain Router
    ● healthy

    Give agents provider-neutral access to text, image, and speech models with USDC payments on Base, local spending controls, ambiguity-safe recovery, and verified receipts. Stable public npm clients and MIT agent integrations are available now.

    B7.1 ai baseeip155:8453 $0.0020 USDC / call
  • —

    B7.3 x402 base $0.2500 USDC / call
  • api.onhub.ai
    ● healthy

    Grounded Google Search answers with attributable HTTPS sources.

    B8.0 general eip155:8453 $0.0010–$0.4000 USDC
  • x402 Web Extract
    ● healthy

    Pay-per-use web extract, token prices, and wallet balances via x402 USDC micropayments.

    B7.4 model-context-protocol-mcp base $0.0100 USDC / call
  • —

    B+8.2 x402 basesolana $0.0030 USDC / call
  • Solves for the rigid transform between an object's coordinate frame and the camera, given 3D landmark coordinates, where those landmarks appear in the image, and the camera matrix and distortion. Returns the rotation and translation together with the reprojection RMSE, so a caller can tell a well-constrained pose from one that merely converged. This is the standard step for placing a known obje...

    A9.1 general eip155:8453 $0.0020–$0.0040 USDC
  • Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

    B7.5 ai baseeip155:8453 $0.0504–$0.1999 USDC
  • Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

    B7.5 ai baseeip155:137eip155:42161eip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0126–$0.1498 USDC
  • Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

    B7.0 ai baseeip155:8453 $0.0504–$0.1999 USDC
  • Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

    B+8.4 ai baseeip155:8453 $0.0504–$0.1999 USDC
  • One install → every tool for your AI agent. Wallet-native, pay-per-call, no keys (x402). Connect Claude, Cursor, OpenClaw or any MCP client with a single command, or call the x402 HTTP API and pay per request in USDC on Base. 34 tools: AI, web search &amp; scraping, data &amp; analytics, market data, media generation, developer tools, memory — all discoverable and free to try over MCP.

    B7.8 ai baseeip155:8453 $0.0100–$0.1000 USDC
  • 444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.

    B7.5 ai baseeip155:10eip155:137eip155:42161eip155:43114eip155:56eip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0126–$0.1498 USDC
  • —

    B7.2 x402 base $0.0200 USDC / call
  • sol.blockrun.ai
    ● healthy

    AI chat completions API - pay per request with USDC on Solana

    B+8.1 ai solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$0.2625 USDC