tag:agentutility.ai,2026:updates agentutility — updates Daily notes on x402, the agent economy, and the agentutility endpoint portfolio. By x.com/x402_deployer. 2026-05-18T12:00:00Z agentutility-site https://agentutility.ai/icon.png agentutility https://agentutility.ai tag:agentutility.ai,2026-05-18:/updates/x402-volume-base-mainnet-may-2026 What x402 transaction volume on Base actually looks like in May 2026 2026-05-18T12:00:00Z 2026-05-18T12:00:00Z Daily x402 settlement on Base crossed 200k calls and $11k USDC in mid-May 2026. Here's the per-endpoint breakdown and what the trajectory says about pricing. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-17:/updates/schema-design-for-agent-endpoints Schema design rules for paid agent endpoints 2026-05-17T12:00:00Z 2026-05-17T12:00:00Z What we learned about field shapes, error handling, naming, and defaults after shipping 244 paid x402 endpoints across the agentutility portfolio. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-17:/updates/mcp-as-a-discovery-protocol MCP is becoming an API discovery protocol, not just a tool surface 2026-05-17T12:00:00Z 2026-05-17T12:00:00Z Model Context Protocol started as a way to hand tools to agents. It's quietly becoming the layer where agents discover, evaluate, and call paid APIs. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-16:/updates/prooflayer-and-the-verification-bottleneck Prooflayer and the verification bottleneck 2026-05-16T12:00:00Z 2026-05-16T12:00:00Z AI writes code fast. Reviewing whether that code is safe to ship is the next scarcity. Prooflayer's 13 endpoints try to compress that review into one paid call. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-16:/updates/edge-market-token-risk-score-walkthrough How the token-risk-score endpoint actually scores a token 2026-05-16T12:00:00Z 2026-05-16T12:00:00Z Walkthrough of the EdgeMarket token-risk-score endpoint: six subscores from honeypot.is, GoPlus, and Etherscan, totaling 0-100 with a verdict tag, for $0.10 a call. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-15:/updates/why-x402-paywalls-beat-api-keys Why an HTTP 402 paywall beats handing out API keys 2026-05-15T12:00:00Z 2026-05-15T12:00:00Z API keys assume one human, one account, one billing relationship. Agents don't fit that shape. x402 fixes it by turning the 402 status code into a payment handshake. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-15:/updates/the-economics-of-per-call-pricing The economics of $0.001-per-call APIs 2026-05-15T12:00:00Z 2026-05-15T12:00:00Z Why SaaS minimums priced agents out, what a 1,000-call month costs on a $0.03 x402 endpoint vs a $99/mo plan, and where sub-cent pricing opens new work. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-14:/updates/erc-8004-agent-card-primer ERC-8004 in one page: what an agent card actually contains 2026-05-14T12:00:00Z 2026-05-14T12:00:00Z The ERC-8004 agent card spec in one screen: the on-chain struct, the resolution path from agentId to JSON, and why agentId 47167's URI points at a worker, not a pinned file. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-13:/updates/mediakit-50-file-format-endpoints Mediakit: 50 file-format endpoints, one paywall 2026-05-13T12:00:00Z 2026-05-13T12:00:00Z Mediakit ships 50 single-purpose file-conversion endpoints across PDF, image, audio, video, OCR, and office. Why 50 endpoints beats one /convert tool with a format flag. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-12:/updates/wordmint-named-tasks-vs-token-billing Why named LLM tasks beat raw token billing 2026-05-12T12:00:00Z 2026-05-12T12:00:00Z Token billing forces agents to guess prices before they know input sizes. Wordmint's named-task pricing flips that so a 'summarize' call costs $0.005, full stop. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-11:/updates/webprobe-precheck-before-scrape What a paid pre-flight check saves you on a 1,000-URL scrape 2026-05-11T12:00:00Z 2026-05-11T12:00:00Z WebProbe's DNS/SSL/WHOIS/liveness checks at $0.001/URL filter dead domains, expired certs, parked sites, and squatter pages before you spend $0.01 each on doomed scrapes. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-10:/updates/locale-civic-geo-weather-stack Locale: the civic + weather + geo stack at $0.001/call 2026-05-10T12:00:00Z 2026-05-10T12:00:00Z The Locale cluster wraps free civic data (weather, geocoding, flight status, IRS, Socrata) behind one x402 paywall at $0.001 a call, so an agent's whole trip-planning loop costs a penny. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-09:/updates/coinbase-bazaar-listing-anatomy What a Coinbase Bazaar listing actually looks like to a crawler 2026-05-09T12:00:00Z 2026-05-09T12:00:00Z A field-by-field walkthrough of how Coinbase's x402 Bazaar serializes endpoint listings, with notes on which fields move discovery and why paid call volume sets rank. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-08:/updates/no-signup-pattern-in-practice The 'no signup' pattern in practice across 244 endpoints 2026-05-08T12:00:00Z 2026-05-08T12:00:00Z An agent with a wallet, no account, no API key calls an x402 endpoint cold, pays $0.003 on Base, gets data back in two round trips. Full lifecycle traced. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-07:/updates/composable-pricing-stacking-endpoints Composable pricing: stacking endpoints to answer one question 2026-05-07T12:00:00Z 2026-05-07T12:00:00Z Four x402 endpoints stacked, $0.025 total, one answer to 'is this token safe to swap.' A worked example in composing thin APIs against the Bloomberg subscription model. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-06:/updates/llms-txt-why-we-publish-one Why agentutility publishes an llms.txt (and what's in ours) 2026-05-06T12:00:00Z 2026-05-06T12:00:00Z The llmstxt.org proposal in one paragraph, why it matters for AI-search citation, what we put in /llms.txt vs /llms-full.txt, and how to size yours. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-05:/updates/cluster-aggregator-endpoints-lesson Why every cluster needs an aggregator endpoint 2026-05-05T12:00:00Z 2026-05-05T12:00:00Z Agents pay per call, so they want one call that answers the real question. Every cluster needs a composite endpoint that fans out to its sub-probes. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-04:/updates/wallet-as-identity-vs-api-keys Wallet-as-identity: what it actually buys you over an API key 2026-05-04T12:00:00Z 2026-05-04T12:00:00Z Wallet signatures scope risk to a single payment instead of a long-lived bearer secret. The trade flips hard when the principal is an agent calling 40 paid APIs a session. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-03:/updates/synthforge-three-price-tiers Synthforge: three price tiers for generative media 2026-05-03T12:00:00Z 2026-05-03T12:00:00Z Synthforge ships draft, standard, and ultra tiers across image, video, and audio gen so agents pick the right cost-quality point per call instead of paying flagship rates every time. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-02:/updates/tag-based-discovery-grep-the-catalog Tag-based discovery: how to grep our 244 endpoints 2026-05-02T12:00:00Z 2026-05-02T12:00:00Z 244 endpoints in our x402 catalog now carry composable tags, and /endpoints.txt publishes a grep-friendly flat-file index agents can curl without any JSON parsing or API key. agentutility https://agentutility.ai tag:agentutility.ai,2026-05-01:/updates/facilitator-wallet-anatomy What the x402 facilitator wallet does (and doesn't) hold 2026-05-01T12:00:00Z 2026-05-01T12:00:00Z The CDP facilitator at 0x8f5c…e531 never custodies your USDC. Here's what actually moves on-chain when an x402 call settles, and what stays off it. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-30:/updates/building-a-research-agent-on-x402 Building a one-shot research agent on x402 2026-04-30T12:00:00Z 2026-04-30T12:00:00Z A working recipe: feed a topic, get back a 500-word sourced brief in about seven seconds for four cents, using three x402 endpoints stitched together with one wallet. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-29:/updates/x402-versus-l402-versus-pay-per-crawl x402 vs L402 vs pay-per-crawl: three takes on machine payments 2026-04-29T12:00:00Z 2026-04-29T12:00:00Z Three protocols want to make HTTP 402 real. Lightning's L402, Coinbase's x402, Cloudflare's pay-per-crawl. Different auth, different rails, different bets. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-28:/updates/versioning-paid-endpoints Versioning paid endpoints when the agents won't read changelogs 2026-04-28T12:00:00Z 2026-04-28T12:00:00Z Agents don't read changelogs. So we don't break endpoints. Here's how we handle schema changes across the agentutility portfolio without burning live callers. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-27:/updates/edgefinance-13f-deltas-walkthrough 13F deltas: parsed SEC filings at $0.005/call 2026-04-27T12:00:00Z 2026-04-27T12:00:00Z The 13f-deltas endpoint diffs consecutive SEC 13F filings and returns added, exited, and resized positions in JSON, so an agent can screen a hundred funds for a few cents. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-26:/updates/how-agents-budget-when-prices-vary How an agent should budget when endpoint prices vary 100x 2026-04-26T12:00:00Z 2026-04-26T12:00:00Z Endpoint prices on x402 span three orders of magnitude. Here's how to write an agent loop that won't blow its budget on a single image call or starve cheap utility endpoints. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-25:/updates/endpoint-pricing-distribution Endpoint pricing distribution across the agentutility portfolio 2026-04-25T12:00:00Z 2026-04-25T12:00:00Z What 244 x402 endpoint prices look like when you plot them: median $0.015, mode $0.01, a heavy cluster under $0.05, and a stubborn pile at $0.30. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-24:/updates/schema-org-on-paid-endpoint-pages Why every endpoint page emits schema.org JSON-LD 2026-04-24T12:00:00Z 2026-04-24T12:00:00Z We ship WebAPI + Service + TechArticle + Offer JSON-LD on every endpoint page. It pays off in AI-search citation rates. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-23:/updates/the-rise-of-mcp-discoverable-catalogs The rise of MCP-discoverable catalogs 2026-04-23T12:00:00Z 2026-04-23T12:00:00Z MCP began as local stdio tools loaded into Claude Desktop. Eighteen months later it's the discovery layer for remote paid APIs, and that changes what shipping an endpoint means. agentutility https://agentutility.ai tag:agentutility.ai,2026-04-22:/updates/what-an-agent-callable-api-looks-like What does 'agent-callable' actually mean? 2026-04-22T12:00:00Z 2026-04-22T12:00:00Z Five concrete tests to decide whether your API is actually reachable by agents, or just claims to be. Curl it cold, validate the schema, check MCP discovery. agentutility https://agentutility.ai