Every agent-payable API.

Whole-job market brief for agents. One payment returns current trending demand signals, the top 10 highest-scored open opportunities (optionally filtered by category), and per-category counts — equivalent to several separate paid calls. Pass ?category= to restrict the opportunities section to one category slug (an unknown slug returns a no-charge 400 listing the known categories). While the index is still warming and there are no trending signals and no open opportunities, you get a no-charge 5…

Whole days between two ISO dates. Call when you compute agent SLA windows or age. Returns days and ok for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Concise summary of a Wikipedia article: title, description, plain-text extract and thumbnail. Append the page title to the path, e.g. /api/rest_v1/page/summary/Bitcoin.

Full-text search across Wikipedia. Returns matching pages with title, description and a match excerpt.

Full rendered Wikipedia article as clean HTML (Parsoid). Append the page title to the path, e.g. /api/rest_v1/page/html/Bitcoin.

Wikipedia summary — Lead summary/extract for a Wikipedia page.

Paid compressed relationship map connecting wildlife species, tracks, behavior, habitats, ecosystems, field locations, seasonal timing, and conservation systems.

Win rate from wins and total trades. Call when scorecards and expectancy inputs from closed trade counts. Returns win rate fraction and percent as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Hourly near-surface wind speed in meters per second (m/s) | ERROR: Unable to calculate price.

Full AI analyst report — engine-sourced scores, metrics, and changes plus grounded narrative sections — for a country, cryptocurrency, or stock.

Create a new pixel art canvas. Returns editing, manifest, full-spec, guide, and interactive-view URLs. Optionally pre-load base64 RGBA pixels. Full agent guide: https://pixelart.withzero.xyz/llms.txt

Generate a complete, full-length song from a text prompt with Google's Lyria 3 Pro and return a hosted audio URL.

Convert text to natural-sounding speech with Google Gemini 3.1 Flash TTS and return a hosted audio URL.

Node.js hosting: ship the Node app you built locally, unchanged — full server runtime on Cloud Run with a dedicated Postgres. Native modules OK. App reads DATABASE_URL + listens on PORT. Filesystem is writable but ephemeral (scale-to-zero) — keep durable state in Postgres. Durable /data file storage (1 GiB included).

Remember a fact or context in durable agent memory.

Core workflow route: normalize company inputs from domains, names, professional-network company URLs, or Crustdata IDs before account enrichment or people search. Minimum-charge route: $0.01 on successful upstream calls.

Independently fetch, hash, timestamp and archive a URL or API response; returns a signed certificate. Merkle-anchored on Base hourly. Neutral third-party evidence for agent commerce disputes.

Work Near (CDP-settled mirror) — open, fundable ecological work packets from the LIVE board near a place. Reads our board directly.

Work Packet Builder (CDP-settled mirror of /.well-known/vealth/work-packet) — place + problem in, bounded ecological work packet out: matched definition from the standards-registered ecological work library, method, proof requirements, tCO2e estimate, funding + on-chain settlement path. Deterministic, no LLM.

Work Proof Check (CDP-settled mirror) — deterministic completeness verdict on a submitted work proof (GPS bounds, artifact hash). A verification aid, not a third-party attestation.

Work tCO2e Accounting (CDP-settled mirror) — ecological accounting guidance from the production settle-to-retire mapping for a work type. NOT a credit, NOT a retirement.

Working days in a date range: weekends + public holidays applied, next working day

Worldwide disaster events from GDACS (UN/EC): earthquakes, cyclones, floods, volcanoes, droughts and wildfires as GeoJSON with alert level, severity and population affected. Keyless.

Submit one verifiable fact on the machine-payments beat for editorial review. Body: {"contributor_wallet": "0x... (Base, receives the bounty)", "category": "machine_payments_metrics|x402_endpoint_news|protocol_governance|pricing_change|other", "fact_statement": "one specific checkable claim, 20-600 chars", "source_url": "https://..."}. Agent-run review within ~48h fetches your source and checks it supports the claim. Accepted: 0.10 USDC paid to contributor_wallet and receipted publicly at /ledger.json. Rejected: reason published at the status URL; the $0.01 fee is not refunded.

Subscribe an email address to the Would Pay Again newsletter. Body: {"email": "you@example.com"}.

Www Authenticate Parse: Www Authenticate Parse parses an authentication challenge scheme and bounded parameters from bounded caller-supplied values without an external provider. Call Www Authenticate Parse before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for Www Authenticate Parse as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stat…

X Content Type Options Check: X Content Type Options Check checks whether X-Content-Type-Options is exactly nosniff from bounded caller-supplied values without an external provider. Call X Content Type Options Check before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for X Content Type Options Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. F…

X Forwarded For Chain: X Forwarded For Chain normalizes a proxy chain without deciding whether an address is trusted from bounded caller-supplied values without an external provider. Call X Forwarded For Chain before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for X Forwarded For Chain as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, s…

Read a connected X/Twitter account's private surfaces: bookmarks and bookmark folders, notifications, and DM history. Billed per item returned; readable only for handles this wallet connected.

X/Twitter account search for AI agents - find accounts by name, topic or keyword, no API key or login. Up to 20 matching profiles with handle, display name, bio, follower and following counts, verified status, location and URL. Build a list of analysts in a niche, find a company's real account, or discover creators to monitor. ?query=lithium analyst. One profile: /x/profile $0.005.

X/Twitter profile lookup for AI agents - full public account details for any handle, no API key or login. Returns display name, user id, bio, follower and following counts, tweet count, verified status, location, join date and profile URL. Verify an account is real, size an audience, enrich a lead, resolve a handle to an id. ?username=elonmusk. Their tweets: /x/user $0.006. Find accounts: /x/users $0.006.

X/Twitter trend digest - live tweet search PLUS an AI-written summary an agent can use directly: 3-5 sentence trend summary, sentiment (positive/negative/mixed/neutral) with reason, key themes, driving accounts, notable post URLs. Raw tweets included. Advanced search syntax: from:user, #hashtags, min_faves, since dates, lang. Social media monitoring, crypto, stocks, news sentiment, brand tracking, market signals. ?query=<advanced search>. Raw-only tier: /x/search $0.006.

X402 Accepts Rank: X402 Accepts Rank ranks challenge accepts entries against buyer network and asset preferences from bounded caller-supplied values without an external provider. Call X402 Accepts Rank before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Accepts Rank as versioned deterministic JSON. Pri…

X402 Amount Budget Check: X402 Amount Budget Check checks challenge raw amount against an exact buyer call budget from bounded caller-supplied values without an external provider. Call X402 Amount Budget Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Amount Budget Check as versioned determin…

X402 Asset Match: X402 Asset Match compares a challenge asset identifier with buyer-supported assets from bounded caller-supplied values without an external provider. Call X402 Asset Match before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Asset Match as versioned deterministic JSON. Price: $0.001 USD…

X402 Catalog Route Check: X402 Catalog Route Check checks one catalog route for tool, method, path, and positive price from bounded caller-supplied values without an external provider. Call X402 Catalog Route Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Catalog Route Check as versioned det…

Pass/fail self-audit for builders submitting an x402 service to a catalog or bazaar. Checks the failure modes that get services rejected or marked weak: missing MIT license file, HTTP 404/405 instead of a real 402 challenge, dishonest or missing price metadata, thin response schema, and no smoke test. Outputs a hard gate verdict with the exact fix for each failed check. Blunt decision procedure, not marketing.

X402 Challenge Shape Check: X402 Challenge Shape Check checks required top-level fields in a caller-supplied payment challenge from bounded caller-supplied values without an external provider. Call X402 Challenge Shape Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Challenge Shape Check as v…

X402 Challenge Version Check: X402 Challenge Version Check compares challenge protocol version with supported versions from bounded caller-supplied values without an external provider. Call X402 Challenge Version Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Challenge Version Check as versi…

X402 Copy Completeness Check: X402 Copy Completeness Check checks product copy for service name, job, outcome, limitation, and minimum length from bounded caller-supplied values without an external provider. Call X402 Copy Completeness Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Copy Comp…

X402 Delivery Content Type Check: X402 Delivery Content Type Check compares delivery content type with buyer-accepted media types from bounded caller-supplied values without an external provider. Call X402 Delivery Content Type Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Delivery Content…

X402 Delivery Hash Check: X402 Delivery Hash Check verifies delivered text against a caller-supplied sha-256 digest from bounded caller-supplied values without an external provider. Call X402 Delivery Hash Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Delivery Hash Check as versioned determ…

X402 Delivery Latency Check: X402 Delivery Latency Check checks observed delivery latency against a buyer SLA from bounded caller-supplied values without an external provider. Call X402 Delivery Latency Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Delivery Latency Check as versioned determ…

X402 Delivery Receipt Check: X402 Delivery Receipt Check checks receipt fields for payment id, resource, amount, and delivery status from bounded caller-supplied values without an external provider. Call X402 Delivery Receipt Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Delivery Receipt Ch…

X402 Delivery Schema Check: X402 Delivery Schema Check checks delivered object fields against a caller-required field list from bounded caller-supplied values without an external provider. Call X402 Delivery Schema Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Delivery Schema Check as versi…

X402 Delivery Size Check: X402 Delivery Size Check checks serialized result byte size against a buyer limit from bounded caller-supplied values without an external provider. Call X402 Delivery Size Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Delivery Size Check as versioned deterministic…

X402 Delivery Status Check: X402 Delivery Status Check classifies delivery HTTP status against accepted success codes from bounded caller-supplied values without an external provider. Call X402 Delivery Status Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Delivery Status Check as versioned…

X402 Discovery Parity Check: X402 Discovery Parity Check compares tool-name sets from catalog, OpenAPI, portfolio, and runtime from bounded caller-supplied values without an external provider. Call X402 Discovery Parity Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Discovery Parity Check as…

The funnel logic behind ForgeMesh's x402 pricing and discovery design, as 10 structured tenets: why discovery stays free, why the 402 challenge itself is a probe, why failed upstreams never charge, and why prices ladder from taste-test to premium. Written for agents and builders evaluating or designing paid API funnels.

X402 Idempotency Check: X402 Idempotency Check compares payment and delivery idempotency keys for one operation from bounded caller-supplied values without an external provider. Call X402 Idempotency Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Idempotency Check as versioned deterministic…