{"id":498998,"name":"World Bank Indicators (Data API)","description":"Data: The World Bank (public API, not affiliated). Country-level development indicators (GDP, population, inflation, unemployment, life expectancy and ~16,000 more) by year. Two modes. direct (default): returns a ready GET request (no key) plus a short extract spec (rows path + value/unit/period/geo/label/id mapping) so your agent fetches the source from its own IP; cache hit -> instant rows (cached_rows, cached_at, ttl_left_s) with no upstream call. proxy (opt-in: params.mode \"proxy\" or header X-Connector-Mode: proxy): we fetch within a per-source budget at or below half of the publisher limit, with cache, backoff and a circuit breaker; if the proxy budget is used up you get the direct recipe instead. Proxy replies are compact, normalized rows to save tokens (one line per row \"value unit | period | geo | label | id\"; format \"rows\" for JSON; fields, limit, latest_only; include_raw opt-in). Free, no key required. Free Data API operated by AgentBazaar. Not affiliated with, endorsed by, or operated by the data publisher. Data is returned as published; cite the publisher.","card_url":"https://agentbazaar.tech/a2a/connectors/worldbank/.well-known/agent.json","endpoint":"https://agentbazaar.tech/a2a/connectors/worldbank","protocol_version":"0.3.0","first_seen":"2026-10-28T14:58:43.788226+00:00","last_verified":"2026-10-28T14:58:43.788226+00:00","card":{"url":"https://agentbazaar.tech/a2a/connectors/worldbank","name":"World Bank Indicators (Data API)","skills":[{"id":"worldbank.query","name":"Query World Bank Indicators","tags":["economics","development","indicators","country statistics","public data","free","open data"],"examples":["GDP Korea 2020-2024","{\"params\":{\"indicator\":\"NY.GDP.MKTP.CD\",\"country\":\"KR\",\"date\":\"2020:2024\"}}","{\"params\":{\"indicator\":\"NY.GDP.MKTP.CD\",\"country\":\"KR\",\"date\":\"2020:2024\",\"format\":\"rows\",\"fields\":[\"value\",\"period\",\"geo\"]}}"],"inputModes":["application/json","text/plain"],"description":"Country-level development indicators (GDP, population, inflation, unemployment, life expectancy and ~16,000 more) by year. Input: a data part {params} with indicator — WDI code, e.g. NY.GDP.MKTP.CD (required); country — ISO2/ISO3 code(s), up to 6, comma or ; separated; \"WLD\" = world (default WLD); date — YYYY or YYYY:YYYY (default: latest 5 years); limit — 1-100 (default 25). mode: direct (default; request + extract spec, plus cached_rows on a cache hit) | proxy (we fetch; compact rows). Output options (same params object): format compact (default) | rows; fields (row keys to keep, e.g. [\"value\",\"period\",\"geo\"]); latest_only (latest period per series); include_raw (trimmed upstream JSON, opt-in). Or send a short text query (deterministic keyword rules, no model). Output: a completed Task; compact = one text part (header line, one line per row, source/license/query line); rows = short text + data part {rows[], row_count, total_available, truncated, source, license, query_url, approx_tokens}.","outputModes":["application/json","text/plain"]}],"version":"1.0.0","provider":{"url":"https://agentbazaar.tech","organization":"AgentBazaar"},"description":"Data: The World Bank (public API, not affiliated). Country-level development indicators (GDP, population, inflation, unemployment, life expectancy and ~16,000 more) by year. Two modes. direct (default): returns a ready GET request (no key) plus a short extract spec (rows path + value/unit/period/geo/label/id mapping) so your agent fetches the source from its own IP; cache hit -> instant rows (cached_rows, cached_at, ttl_left_s) with no upstream call. proxy (opt-in: params.mode \"proxy\" or header X-Connector-Mode: proxy): we fetch within a per-source budget at or below half of the publisher limit, with cache, backoff and a circuit breaker; if the proxy budget is used up you get the direct recipe instead. Proxy replies are compact, normalized rows to save tokens (one line per row \"value unit | period | geo | label | id\"; format \"rows\" for JSON; fields, limit, latest_only; include_raw opt-in). Free, no key required. Free Data API operated by AgentBazaar. Not affiliated with, endorsed by, or operated by the data publisher. Data is returned as published; cite the publisher.","x-connector":{"modes":{"proxy":"opt-in via params.mode \"proxy\" or header X-Connector-Mode: proxy; compact rows; falls back to the direct recipe when the per-source budget or circuit breaker blocks","direct":"reply {recipe: {request: {method, url, headers}, extract: {format, rows_path, fields}, source, license, notes}} (+ cached_rows, cached_at, ttl_left_s on a cache hit); we make no upstream call","default":"direct","extract_syntax":"dot paths with numeric indexes and \"*\" for arrays; field = path | {path, transform} | {coalesce:[paths]} | {const} | {template:\"{a} ({b})\"}; transforms number, epoch_ms_to_iso, date10, join:<sep>, unique_join5:<sep>, null_if:<value>; formats json-stat-2.0 and sdmx-json use standard parsers"},"price":"free","errors":{"-32001":"task not found","-32029":"rate limited (Retry-After header)","-32050":"upstream error / timeout","-32052":"upstream response too large","-32053":"temporarily unavailable (upstream protection / circuit breaker; retry_after_s in error.data)","-32601":"method not found","-32602":"invalid params (bad code / unknown series)"},"limits":{"note":"upstream budgets stay at or below half of the publisher limit; on upstream 429/503 the connector pauses (Retry-After respected, exponential backoff) and answers -32053 until it recovers","max_rows":100,"cache_ttl_s":86400,"per_ip_per_min":40,"upstream_per_day":3000,"upstream_per_min":30,"per_caller_per_day":500,"per_caller_per_min":20},"params":{"date":"YYYY or YYYY:YYYY (default: latest 5 years)","mode":"direct (default: request + extract spec; cache hit -> instant rows) | proxy (we fetch within a per-source budget; falls back to direct)","limit":"1-100 (default 25)","fields":"optional list of row keys to keep","format":"compact (default, token-saving text lines) | rows (row objects)","country":"ISO2/ISO3 code(s), up to 6, comma or ; separated; \"WLD\" = world (default WLD)","indicator":"WDI code, e.g. NY.GDP.MKTP.CD (required)","include_raw":"true = add trimmed upstream JSON (<= 20 KB; opt-in)","latest_only":"true = latest period per series only"},"source":{"url":"https://data.worldbank.org","hosts":["api.worldbank.org"],"api_docs":"https://datahelpdesk.worldbank.org/knowledgebase/articles/898581","relation":"public API, not affiliated","publisher":"The World Bank"},"license":"CC BY 4.0","methods":["message/send","tasks/send (legacy)","tasks/get"],"examples":[{"input":{"id":1,"method":"message/send","params":{"message":{"role":"user","parts":[{"data":{"params":{"date":"2020:2024","country":"KR","indicator":"NY.GDP.MKTP.CD"}},"kind":"data"}],"messageId":"m1"}},"jsonrpc":"2.0"},"output_rows":{"result":{"kind":"task","status":{"state":"completed"},"artifacts":[{"parts":[{"kind":"text"},{"data":{"rows":[{"id":"string","geo":"string","unit":"string","label":"string","value":"number|string","period":"string","source_url":"url"}],"source":"Source: The World Bank, World Development Indicators (CC BY 4.0)","license":"CC BY 4.0","query_url":"url","row_count":"n","truncated":"bool","approx_tokens":"n"},"kind":"data"}]}]}},"output_compact":{"result":{"kind":"task","status":{"state":"completed"},"artifacts":[{"parts":[{"kind":"text","text":"value unit | period | geo | label | id\n<one line per row>\n-- n rows. Source: The World Bank, World Development Indicators (CC BY 4.0). CC BY 4.0. <query_url>"}]}]}}},{"input_text":"GDP Korea 2020-2024"}],"identity":"optional X-API-Key header (your agent id/key) for per-caller rate limits; anonymous callers are limited per IP","operator":{"url":"https://agentbazaar.tech","role":"connector operator (not the data publisher)","organization":"AgentBazaar"},"disclaimer":"Free Data API operated by AgentBazaar. Not affiliated with, endorsed by, or operated by the data publisher. Data is returned as published; cite the publisher.","attribution":"Source: The World Bank, World Development Indicators (CC BY 4.0)","license_url":"https://datacatalog.worldbank.org/public-licenses"},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"protocolVersion":"0.3.0","documentationUrl":"https://datahelpdesk.worldbank.org/knowledgebase/articles/898581","defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json","text/plain"],"preferredTransport":"JSONRPC","additionalInterfaces":[{"url":"https://agentbazaar.tech/a2a/connectors/worldbank","transport":"JSONRPC"}],"supportsAuthenticatedExtendedCard":false},"status":"verified","publisher_domain":"agentbazaar.tech","signature_status":"unsigned","signature_detail":"No card signature supplied","signature_key_url":null,"signature_checked_at":"2026-10-28T14:58:43.788226+00:00","domain_claimed_at":null,"domain_proof_checked_at":null,"source_name":"Publisher Agent Card","source_url":"https://agentbazaar.tech/a2a/connectors/worldbank/.well-known/agent.json","last_check":{"checked_at":"2026-10-28T14:58:43.788226+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"also_published_at":[],"history_urls":["https://agentbazaar.tech/a2a/connectors/worldbank/.well-known/agent.json"],"skills":[{"skill_id":"worldbank.query","name":"Query World Bank Indicators","description":"Country-level development indicators (GDP, population, inflation, unemployment, life expectancy and ~16,000 more) by year. Input: a data part {params} with indicator — WDI code, e.g. NY.GDP.MKTP.CD (required); country — ISO2/ISO3 code(s), up to 6, comma or ; separated; \"WLD\" = world (default WLD); date — YYYY or YYYY:YYYY (default: latest 5 years); limit — 1-100 (default 25). mode: direct (default; request + extract spec, plus cached_rows on a cache hit) | proxy (we fetch; compact rows). Output options (same params object): format compact (default) | rows; fields (row keys to keep, e.g. [\"value\",\"period\",\"geo\"]); latest_only (latest period per series); include_raw (trimmed upstream JSON, opt-in). Or send a short text query (deterministic keyword rules, no model). Output: a completed Task; compact = one text part (header line, one line per row, source/license/query line); rows = short text + data part {rows[], row_count, total_available, truncated, source, license, query_url, approx_tokens}.","tags":["economics","development","indicators","country statistics","public data","free","open data"],"quality_warning":false}],"quality_flags":[],"check_history":{"checks":1,"passed":1},"recent_checks":[{"card_url":"https://agentbazaar.tech/a2a/connectors/worldbank/.well-known/agent.json","checked_at":"2026-10-28T14:58:43.788226+00:00","success":true,"http_status":200,"detail":"Agent Card validated"}],"endpoint_tls_check":{"checked_at":"2026-10-28T14:58:43.788226+00:00","success":true,"detail":"Valid TLS connection to advertised endpoint host; no A2A request sent"},"protocol_check":{"checked_at":"2026-10-28T14:58:43.788226+00:00","endpoint":"https://agentbazaar.tech/a2a/connectors/worldbank","protocol_binding":"JSONRPC","protocol_version":"0.3.0","state":"a2a_response","http_status":200,"detail":"A2A task-not-found response to a read-only task lookup","request_diagnostics":{"requests":[{"path":"/a2a/connectors/worldbank","allow":[],"method":"POST","status":200,"version_header":"0.3","protocol_method":"tasks/get","redirect_followed":false}],"capture_version":1}},"declared_primary_endpoint":"https://agentbazaar.tech/a2a/connectors/worldbank","selected_connection_interface":{"url":"https://agentbazaar.tech/a2a/connectors/worldbank","protocolBinding":"JSONRPC","protocolVersion":"0.3.0"},"protocol_interface_checks":[{"endpoint":"https://agentbazaar.tech/a2a/connectors/worldbank","protocol_binding":"JSONRPC","protocol_version":"0.3.0","selected":true,"state":"a2a_response","checked_at":"2026-10-28T14:58:43.788226+00:00","http_status":200,"detail":"A2A task-not-found response to a read-only task lookup","binding_recorded":true}],"connection_selection_note":"The selected connection uses an address advertised in the publisher card. 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