Every agent-payable API.

Base network and USDC payment metadata

X Post Writer — Three ready-to-post X drafts under 280 characters, in the tone you ask for.

X User Profile Lookup: one public X (Twitter) account by handle or x.com URL: display name, bio, followers, following, post count, verification, avatar link and creation time, in the shared social schema. Bad input is free; not found or no match is not charged.

Look up up to 10 X (Twitter) accounts by username in one call. Returns each found profile with public metrics (followers, following, tweets, listed), verification status and bio, plus the list of usernames X did not resolve.

Look up one X (Twitter) account by username: id, display name, bio, account creation date, verification status and type, location, link, protected flag, and public metrics (followers, following, tweet count, listed count).

Fetch an X (Twitter) account's most recent tweets by user id or username (username is resolved first). Options to exclude retweets and replies, page with pagination_token, or fetch only tweets newer than since_id. Each tweet carries text, created time, language and engagement metrics.

X-RAY compare: side-by-side metrics for up to four actors, chains or sectors

X-RAY list_actors: the actors directory with facets, filters and sorting

X-RAY search_vacancies: vacancies whose title or description match a text

X-RAY list_recent_events: recent events across actors, filterable by kind, chain, sector and actor kind

X-RAY get_actor: one actor's full card (header, cards, latest moves) or one tab

X-RAY top_skills_for_sector: most requested skills in one sector

X-RAY hiring_trend: vacancy counts over time

X-RAY top_hiring_companies: actors with the most open roles

X-RAY salary_stats: salary ranges grouped by sector, grade, blockchain or category

X-RAY list_landscape_events: landscape events (regulatory, macro, narrative)

X-RAY list_narratives: all narratives of the Landscape layer with today's metrics

X-RAY vacancy_stats_by_grade: open roles per grade

X-RAY vacancy_stats_by_sector: open roles per sector

X-RAY vacancy_stats_by_blockchain: open roles per blockchain

X-RAY get_narrative: one narrative: definition, metrics, series, members and news

X-RAY company_hiring_activity: one actor's hiring over time

X-RAY get_company_events: events of one actor

X-RAY get_landscape: one section of the market landscape

X-RAY get_scope_metrics: daily metric series for the market, a chain or a sector

X-RAY get_vacancy: one vacancy with its description and company

X-RAY vacancy_stats_by_skill: open roles per skill cluster

X-RAY get_company: one company with sectors, blockchains, linked data and totals

X-RAY top_skills_for_company: most requested skills of one actor

X-RAY get_company_metrics: daily metric series of one actor

X-RAY vacancy_skills: skill clusters of one vacancy

X-RAY list_vacancies: vacancy rows, newest first

X-RAY list_scopes: all chains or all sectors with their headline numbers

X-RAY get_scope: the state of the market, one chain or one sector

X-RAY get_landscape_brief: the weekly cited briefs (market, narrative, regulation, jurisdiction)

X-RAY list_company_blockchains: company ↔ blockchain links

X-RAY list_skill_clusters: the skill cluster taxonomy

X-RAY search_entities: resolve a name or ticker to actors, chains and sectors

X-RAY list_company_sectors: company ↔ sector links

X-RAY list_blockchains: the blockchain taxonomy

X-RAY list_sectors: the sector taxonomy

X-RAY list_companies: companies by name

X1 chain health: epoch, slot, TPS, validator count + delinquency, total/activated stake, supply. Sources api.x1.xyz cluster.

X1 wallet threat report, per call: pass ?wallet=<address> and get that wallet's blacklist status, its links to known rug operators and the live alerts against it. Same answer the 5 XNT subscription gives, but priced per lookup so you do not have to commit — pay in USDC on Arc, Base or Solana, or XNT on X1.

Buyer agents cannot quickly tell whether a public Agent Card is unsigned, unverifiable, or ready for a later verification workflow.

Buyer agents cannot quickly tell whether a public Agent Card has enough identity, skill, interface, security, signature, and documentation evidence before delegation.

Agents need a structured deal room before delegating paid work to another agent.

Agent-to-agent task handoffs can fail because payload shape, mode support, status handling, auth disclosure, or failure behavior is unclear.

Buyer agents need to choose the right remote skill without executing tasks or trusting vague service descriptions.

Sellers need to know which endpoints should become paid agent products before spending engineering time.