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Changelog

Recent additions to Agent402: new tools, skill packs, framework adapters, and platform features.

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2026-08-26

Why pay here, settle-actual for every buyer, and a client that routes

  • agent402-client 0.8.2: the User-Agent header now carries the package version and the test pins it to package.json so it cannot drift again (0.8.1 still sent 0.7.0). Contributed by epistemedeus (PR #985).
  • agent402-client 0.8.1: route(task, { k, include, network }) ranks tools across the host's current x402/MPP index over the free /api/route, read-only and wallet-free, with executeVia tier hints for route-execute. Contributed by epistemedeus (PR #974).
  • /why: seven first-party differences, each linked to the surface that proves it; the same points in /llms.txt, the MCP instructions, the README and the OpenClaw guide
  • Metered gateway: credits and card buyers settle actual usage x 1.15 like upto buyers; agent402-openclaw 0.3.x pays upto when the wallet holds a Permit2 allowance (permit2-approve), proven daily by the canary's metered-upto leg; the quote is priced from the same object the handler serves
  • Stellar facilitator: second and third Soroban RPC on transport failures, OpenZeppelin as settle fallback
  • Report inputs: XBRL operating-to-net bridge and verbatim filing excerpts in the dossier, 13F amendments folded, Schedule 13G holders, derivative Form 4s, GoPlus and DexScreener in token risk, DNS posture and recursive SPF in domain audits, page bodies and a citation audit in research; LinkedIn article package with LinkedIn-sized images
  • Wiki accuracy pass across 19 pages, generated from the live catalog and product tables
2026-08-18

Agentic Finance, the MPP leaderboard, and a tollbooth that settles from env

  • Positioned under Agentic Finance: /agentic-finance defines the category (DefinedTerm + FAQ structured data), /glossary is one canonical DefinedTermSet for the vocabulary (x402, MPP, 402, facilitator, EIP-3009, receipts, settlement, rails, dual-stack, PoW tier, SOR, tollbooth), and /blog/what-is-agentic-finance-aifi is the long form
  • MPP leaderboard on /mpp-marketplace: verified MPP sellers ranked by inbound USDC.e transfers on Tempo to the recipient their live challenge names, read from the chain by us (window, rolling 7d/30d, distinct payers, volume; routable rows are the ones the router will pay). Machine-readable at /api/mpp-index and /api/mpp-leaderboard
  • Smart Order Router pays MPP sellers on Tempo (chain-matched: an MPP/tempo buyer's payment funds a Tempo purchase), gated up front by that leaderboard and at pay time by on-chain proof
  • Native MPP settlement on Tempo (tempo/charge via Tempo's relay) alongside the Base/Celo evm method; TEMPO_CURRENCY accepts a CSV of currencies
  • agent402-tollbooth 0.8.0: the reverse-proxy CLI settles x402 AND MPP from env alone (TOLLBOOTH_PAYTO + TOLLBOOTH_FACILITATOR_URL); 0.7.0 added the x402: middleware mode that settles after the handler and MPP on the same 402
  • agent402-client pays MPP sellers with a stock mppx fetch; every package and identity surface names both wires
2026-07-24

MPP dual-stack - every endpoint speaks two payment protocols

  • Every paid endpoint now answers MPP (Machine Payments Protocol, the IETF-track Payment HTTP auth scheme) alongside x402, from the same URL at the same price
  • 402 responses carry a WWW-Authenticate: Payment challenge (EIP-3009 USDC on Base and Celo); Authorization: Payment credentials settle identically to x402; settled responses return a signed Payment-Receipt
  • Proven live daily: the paid canary buys over the native MPP wire on Base and Celo, receipts on-chain
  • Listed on MPPScan; /openapi.json now serves MPP discovery metadata (per-operation offers + service info)
  • MPP adoption is public: toolCallsServed.viaMPPWire at /api/stats
  • HEAD requests on paid routes now return the same 402 challenges as GET
  • Explainer: what-is-x402 now covers how x402 and MPP compare
2026-07-23

Smart Order Router - Algorand external settlement

  • POST /api/route/execute now settles on the buyer's chain: Algorand buyers are routed to proven AVM sellers and pay in USDC on Algorand
  • Algorand payment validity windows are checked before execution, so slower tools can't strand a payment
2026-07-21

Smart Order Router - external execution

  • POST /api/route/execute ($0.01) can buy from external x402 sellers on the buyer's behalf: one payment in, result plus receipt out
  • Only sellers with verified on-chain settlement history are eligible - unproven or unhealthy sellers are never routed to
2026-07-20

On-chain intelligence tools + Celo rail

  • contract-inspect ($0.005) and address-profile ($0.005): verified contract source, ABI, and address token/transaction profiles across major EVM chains
  • USDC on Celo joins the accepted settlement rails
2026-07-17

More settlement rails - USDG on Robinhood Chain, USDC on Avalanche

  • USDG (Global Dollar) on Robinhood Chain accepted for every paid endpoint
  • USDC on Avalanche accepted for every paid endpoint
  • Every rail is exercised by a daily paid canary with real settlements
2026-07-16

Text-to-speech returns to the /v1 gateway

  • /v1/audio/speech ($0.06): OpenAI TTS wire format, mp3/pcm output, 2k-character cap
  • Served by a five-model failover chain - a provider outage never becomes the buyer's error
  • OpenAI voice names map automatically; native voice ids listed on /v1/models
2026-06-24

LLM vision, structured output, and content moderation

  • Vision: send up to 2 image URLs to any LLM tier - screenshot analysis, chart reading, image Q&A
  • Structured output: response_format with json_object or json_schema for schema-enforced JSON
  • Content moderation: /api/moderate ($0.002) - check text for harmful content across 13 categories
  • All guardrails enforced server-side: image count limits, schema size caps, data: URI blocking
2026-06-24

Full AI suite - TTS, STT, embeddings via x402

  • Text-to-speech: /api/tts ($0.05) and /api/tts-hd ($0.10) - 10 voices, 6 audio formats
  • Speech-to-text: /api/transcribe ($0.03) and /api/transcribe-pro ($0.10) - URL-based audio input
  • Embeddings: /api/embed ($0.005) and /api/embed-large ($0.01) - 1536 or 3072 dimensions for RAG and search
  • No API key needed - pay per call with USDC on Base, Solana, Polygon & Arbitrum
  • Self-hosters: bring your own upstream key to run these for free
2026-06-24

Code execution sandbox - Python/JS via x402

  • Run Python or JavaScript in isolated cloud sandboxes: /api/code-run ($0.02) and /api/code-run-pro ($0.05)
  • Returns stdout, stderr, expression result, and error traceback
  • Pro tier: 60s timeout and 50k char code limit for longer computations
  • Each call runs in a fresh, isolated VM - nothing persists between calls
2026-06-24

Image generation gateway - 3-tier GPT Image via x402

  • Generate images: /api/image-gen ($0.03), /api/image-gen-hd ($0.10), /api/image-gen-premium ($0.30)
  • Text-to-image - no API key needed, pay per call, returns base64 PNG
  • Three quality tiers from fast drafts to high-fidelity output
2026-06-24

LLM proxy gateway - 3-tier inference via x402

  • Chat completions: /api/llm ($0.01), /api/llm-pro ($0.10), /api/llm-premium ($0.50)
  • OpenAI-format interface - no API key needed, pay per call
  • Models: GPT-4o-mini, GPT-4o, GPT-4.1, o3, o3-mini
2026-06-23

Reliability improvements and observability

  • Per-tool analytics: every call now tracked with latency, cache, and error metrics
  • Improved upstream reliability for finance and government data tools
  • Automatic retry on transient network failures for market data endpoints
2026-06-23

Developer experience and SEO improvements

  • Proper caching headers on static and discovery routes for faster loads
  • /health endpoint now reports tool count, uptime, and mode
  • Expanded sitemap with blog posts, adapter docs, and webhook pages
  • Wiki and docs navigation updated with new developer resources
2026-06-23

Crypto-hash, string, and calendar kits - 15 new tools

  • Crypto-hash kit: PBKDF2, scrypt, HKDF, constant-time compare, CRC32/Adler32 checksums
  • String kit: Jaccard similarity, case conversion, fuzzy matching, character frequency, word wrap
  • Calendar kit: ISO week numbers, leap year check, Easter date, epoch conversion, day-of-year
  • Google ADK adapter published - agent402-google-adk on npm
2026-06-22

Validation, encoding, and math kits - 15 new tools

  • Validation kit: phone formatting, XML validation, CSV linting, base detection, IPv6 expansion
  • Encoding kit: Punycode, NATO phonetic, Soundex, binary-text, Braille conversion
  • Math kit: Roman numerals, Fibonacci, primality check, GCD/LCM, number base conversion
2026-06-21

Decode-blob and trend-analysis skill packs

  • decode-blob skill pack - automatically detect and decode JWT, gzip, brotli, base64, or hex blobs
  • trend-analysis skill pack - fetch data, summarize, smooth, detect trends, flag anomalies, benchmark
  • Compression kit: 5 tools for gzip, brotli, and deflate compression/decompression
  • Stats kit: 5 tools for summary statistics, correlation, regression, moving averages, and outlier detection
2026-06-20

Security-audit and structured-scrape skill packs

  • security-audit skill pack - 7-tool domain audit covering DNS, TLS, WHOIS, HTTP, headers, SPF, and robots.txt
  • structured-scrape skill pack - render a page and extract structured data in one workflow
  • HTML kit: 5 tools for extracting text, elements, links, tables, and headings from HTML
2026-06-19

x402 economy dashboard and leaderboard

  • /economy - daily x402 ecosystem volume, concentration, and network breakdown
  • /leaderboard - public on-chain ranking of x402 sellers by Base USDC settled volume
  • /api/leaderboard - machine-readable seller rankings
  • Smart Order Router (/api/route) - find the cheapest healthy tool across the x402 ecosystem
2026-06-18

Docs hub, analytics dashboard, and caching

  • /docs - wiki content rendered on-site with sidebar navigation
  • /analytics - live tool-level call counts, error rates, and latency percentiles
  • Server-side response caching with cache-hit headers for supported routes
  • Idempotency support - Idempotency-Key header prevents double-charging on retries
2026-06-17

Tollbooth Cloud and framework adapters

  • Tollbooth Cloud - hosted multi-site pay-per-crawl dashboard
  • 8 framework adapters on npm: OpenAI, Anthropic, Vercel AI SDK, LangChain, LlamaIndex, Google ADK, OpenAI Agents, AWS Strands
  • agent402-client SDK - find() + call() with auto-payment